How good is a 400 chess player?
Rates are per 100 live moves: moves played while the game is not already decided.
What the terms meanShow less
- Centipawn.
- A hundredth of a pawn, the unit a chess engine scores a position in. Giving up a pawn for nothing costs about 100.
- Centipawn loss.
- How much worse a move is than the best move in the position. The average (ACPL) counts every move a player makes.
- Blunder, mistake, inaccuracy.
- A move that loses at least 150 centipawns is a blunder, at least 70 a mistake and at least 40 an inaccuracy. Only live moves are counted.
- Only move.
- A position where one move is clearly better than every other. “Finds the only move” is how often a player plays it.
- Time trouble.
- Less than a tenth of the starting time left on the clock. “Games in time trouble” is the share of games in which a player's clock got that low on any move, however the game stood.
- Winning, better, balanced, worse.
- How the engine scores the position for the player about to move. Balanced is within half a pawn either way, better is up to a pawn and a half ahead, winning is from there up to three pawns ahead, and worse is up to a pawn and a half behind.
- +1, +2, +4.
- A lead of at least one, two or four pawns by the engine's score. A lost position is one that has fallen two pawns behind or worse.
- Percentile.
- The share of a site's players who are rated lower. Blitz and rapid players are ranked separately.
How strong is 400 Elo?
41%of Chess.com blitz players are rated below 400
59% are rated 400 or higher.
25.3blunders per 100 live moves
11.1inaccuracies per 100 live moves
62%of only moves found
28%of games reach time trouble
Chess.com blitz 3+0Chess.com blitz players at each rating
Chess.com blitz 3+0Chess.com blitz players at each rating
Chess.com blitz 3+0Chess.com blitz players at each rating
Chess.com blitz 3+0Chess.com blitz players at each rating
What a 400 actually does
| Measure | 300 | 400 | 500 |
|---|---|---|---|
| Blunders | 28.3 | 25.3 | 23.5 |
| Mistakes | 17.4 | 16.9 | 17.0 |
| Inaccuracies | 10.7 | 11.1 | 11.3 |
| Average centipawn loss | 94.3 | 87.7 | 84.2 |
| Plays the engine's top move | 27% | 28% | 29% |
| Finds the only moveshare of positions with one real answer | 60% | 62% | 64% |
| Game length | 28.0 | 29.3 | 30.9 |
| Live moves per gamemoves played while the game is not already decided | 10.3 | 11.3 | 12.6 |
| How they use the clock | |||
| Games in time troubleunder a tenth of the clock | 28% | 28% | 27% |
| Seconds per move | 4.8 | 4.6 | 4.4 |
| Instant movesplayed in two seconds or less | 33% | 35% | 38% |
| Clock left at move 8share of the starting clock | 84% | 86% | 87% |
| Clock left at move 15share of the starting clock | 63% | 66% | 68% |
| Clock left at move 30in games that get there | 30% | 31% | 32% |
| Clock left at move 50in games that get there | 17% | 16% | 17% |
| Moves played inside a scrambleown clock under a tenth | 3.5% | 3.3% | 3.1% |
| What the game looks like | |||
| Games that end decisivelywon or lost, not drawn | 98% | 97% | 97% |
| Reaches an endgame | 23% | 25% | 27% |
| Capturesper 100 own moves | 28.5 | 28.2 | 27.7 |
| Checksper 100 own moves | 11.0 | 10.6 | 10.4 |
How others play against a 400
| Measure | 300vs 400 | 400vs 400 | 500vs 400 |
|---|---|---|---|
| Score against them | 41.2% | 50.0% | 54.7% |
| Score after reaching +1 | 49% | 61% | 64% |
| Score after reaching +2 | 51% | 63% | 67% |
| Ever loses from +4 | 42% | 29% | 27% |
| Score from lost positionsgames where their eval fell to minus two | 28% | 36% | 41% |
Each column is how players of that rating do in their games against a 400.
Where a 400 blunders
| Measure | 300 | 400 | 500 |
|---|---|---|---|
| When in the game | |||
| Opening | 21.1 | 18.3 | 16.1 |
| Middlegame | 36.7 | 32.8 | 30.5 |
| Endgame | 29.3 | 27.1 | 25.2 |
| In what kind of position | |||
| Winning | 26.5 | 25.3 | 23.6 |
| Better | 21.4 | 18.7 | 16.4 |
| Balanced | 17.9 | 15.7 | 15.4 |
| Worse | 22.3 | 19.8 | 17.7 |
| With how much clock left | |||
| Over half | 25.4 | 22.5 | 20.8 |
| 25 to 50% | 38.5 | 35.5 | 33.4 |
| 10 to 25% | 38.9 | 35.5 | 32.8 |
| Under 10% | 41.9 | 40.4 | 37.5 |
| With which piece | |||
| Queen | 34.0 | 30.5 | 27.9 |
| Rook | 34.7 | 30.0 | 28.4 |
| Knight | 28.5 | 26.0 | 23.7 |
| Bishop | 25.3 | 22.7 | 20.9 |
| Pawn | 25.9 | 23.4 | 22.0 |
| King | 25.7 | 22.5 | 21.1 |
The four rows under “In what kind of position” leave out positions that are already won or already lost. Throwing away a won game still counts in the overall blunder rate, which is why that rate can be higher than all four.
When a 400 blunders most
Blunders per 100 live moves
When in the game
Most in the middlegame: 79% more often than in the opening.
- 400, Opening: 18.3
- 400, Middlegame: 32.8
- 400, Endgame: 27.1
In what kind of position
Most when winning: 61% more often than in a balanced game.
- 400, Winning: 25.3
- 400, Better: 18.7
- 400, Balanced: 15.7
- 400, Worse: 19.8
With how much clock left
Most with under 10% of the clock: 80% more often than with over half the clock.
- 400, Over half: 22.5
- 400, 25 to 50%: 35.5
- 400, 10 to 25%: 35.5
- 400, Under 10%: 40.4
With which piece
Most on queen moves: 36% more often than on king moves.
- 400, Queen: 30.5
- 400, Rook: 30.0
- 400, Knight: 26.0
- 400, Bishop: 22.7
- 400, Pawn: 23.4
- 400, King: 22.5
How much 400-rated players differ
| Measure | 5% | 25% | 75% | 95% |
|---|---|---|---|---|
| Blunders | 18.2 | 22.9 | 29.4 | 34.5 |
| Mistakes | 14.4 | 15.8 | 18.1 | 19.8 |
| Inaccuracies | 9.1 | 10.2 | 11.9 | 13.2 |
| Finds the only move | 50% | 56% | 67% | 72% |
| Seconds per move | 2.9s | 3.8s | 5.1s | 6.3s |
| Games in time trouble | 2% | 14% | 39% | 55% |
Each column is a share of 400-rated players: a quarter are at or under the 25% figure, three quarters at or under the 75% one.
The move quality range a 400 plays in
300 to 550is how half of 400-rated players play, going by how often they blunder
Nine in ten: 150 to 850.
Of 100 players rated 400, how many blunder
- like a 300 or lower28
- like a 40037
- like a 500 or higher35
What separates a 400 from a 700
| Skill, and what trains it | 400 | 700 | Gap |
|---|---|---|---|
| Opening blundersthe first ten moves of your openings | 18.3 | 12.1 | 34% lower |
| Middlegame blundersa check-captures-threats scan every move | 32.8 | 25.3 | 23% lower |
| Composure after an errorresetting after you drop something | 8.7% | 7.0% | 19% lower |
| Trades down when aheadconverting an advantage by liquidating | 44% | 52% | +8 pts |
| Finds the quiet best movepositions where nothing is forcing | 44% | 49% | +5 pts |
| Endgame blundersrook endings and king activity | 27.1 | 23.9 | 12% lower |
| Finds the defensive savedefending worse positions instead of collapsing | 46% | 50% | +4 pts |
| Takes the free materialspotting hanging pieces before anything else | 75% | 81% | +6 pts |
| Finds the forkknight and queen forks, both directions | 34% | 38% | +4 pts |
| Sees the deeper wincalculating past the third move of a line | 28% | 31% | +3 pts |
What a 400 plays
As White
- 1.e4 King's Pawn 63.6%, scores 48.0%
- 1.d4 Queen's Pawn 19.3%, scores 50.0%
- 1.e3 Van't Kruijs 5.2%, scores 50.1%
- every other move 12%
Against 1.e4
- 1...e5 Open Game 54.9%, scores 49.2%
- 1...d5 Scandinavian Defense 15.3%, scores 47.8%
- 1...e6 French Defense 8.2%, scores 44.7%
- every other move 22%
Against 1.d4
- 1...d5 Closed Game 48.1%, scores 48.9%
- 1...e6, usually a French or Queen's Gambit 12.9%, scores 49.7%
- 1...e5 Englund Gambit 11.6%, scores 46.9%
- every other move 27%
400 on each site and time control
| Played on | Blunders | Mistakes | Inaccs | ACPL | Only move |
|---|---|---|---|---|---|
| Chess.com blitz 3+0 | 25.3 | 16.9 | 11.1 | 87.7 | 62% |
| Chess.com blitz 5+0 | 23.7 | 16.3 | 11.1 | 83.4 | 64% |
| Chess.com rapid 10+0 | 28.9 | 17.0 | 10.4 | 90.2 | 59% |
| Lichess blitz 3+0 | ladder starts at 600 | ||||
| Lichess blitz 5+0 | ladder starts at 600 | ||||
| Lichess rapid 10+0 | ladder starts at 600 | ||||
A rating number only means something inside one pool. Chess.com 400 in blitz 3+0 is about 901 on Lichess. Full conversion tables
What punishes a 400
Share of all blunders, by the idea that refuted them
Most often a piece left hanging: 26% of all blunders, against 32% at 100.
- 400, Piece left hanging: 26%
- 400, Losing exchange: 12%
- 400, Discovered attack: 11%
- 400, Fork: 11%
- 400, Pin or skewer: 8%
Frequently asked about 400-rated players
Answered for Chess.com blitz 3+0, the choice at the top of the page.
Is 400 a good chess rating?
400 is near the bottom of the range of chess ratings. 41% of Chess.com blitz players are rated below 400, but the middle player there is rated only about 485. The word is for how a 400 plays, not for where it ranks on Chess.com: move for move, a 400 on Chess.com plays like a 901 on Lichess, where 8% of blitz players are rated lower.
What percentile is 400 Elo?
A 400 rating is about the 41st percentile on Chess.com. 59% of Chess.com blitz players are rated 400 or higher. Every rating side by side: the Chess.com rating guide.
How accurate is a 400 rated chess player?
A 400-rated player plays the engine's top choice on 28% of moves in Chess.com blitz 3+0 and loses 87.7 centipawns per move on average. Going up the ratings, 400 is where the average loss first drops under 90 centipawns a move.
How many blunders does a 400 make per game?
A 400-rated player makes about 2.9 blunders per game in Chess.com blitz 3+0, counting a move that loses at least 150 centipawns while the game is not already decided. A 100 makes about 3.0 and a 700 about 2.8.
Do 400 rated players blunder more in time trouble?
Yes. With under 10% of the clock left, a 400-rated player blunders 1.8 times as often as with more than half of it. A 400 gets that low on time in 28% of games in Chess.com blitz 3+0. The effect is bigger higher up: 2.1 times as often for a 700.
What mistakes do 400 rated players make?
26% of the blunders a 400-rated player makes in Chess.com blitz 3+0 are a piece simply left hanging, the most common kind. That share is 32% at 100 and 26% at 700. Next come blunders involving a losing exchange, at 12%.
When in the game do 400 rated players blunder most?
A 400-rated player blunders most in the middlegame in Chess.com blitz 3+0: on 32.8 of every 100 live moves there, against 27.1 in the endgame and 18.3 in the opening.
What openings do 400 rated players play?
As White in Chess.com blitz 3+0, 63.6% of players rated around 400 open with e4, the King's Pawn, and 19.3% open with d4, the Queen's Pawn. Around 100, e4 is opened by 61.0%, and around 700 by 63.5%. Against e4, the most common reply is e5, the Open Game, played in 54.9% of games, ahead of d5, the Scandinavian Defense, at 15.3%.
How does a 400 do against a 500?
A 400 scores 45.3% against a 500 in Chess.com blitz 3+0. Against a 300 they score 58.8%.
What is 400 on Chess.com in Lichess rating?
A 400 on Chess.com is about 901 on Lichess in blitz 3+0, 501 points higher. The gap between the two sites changes with rating, so no single number converts every rating. Every rating converted, both ways: Chess.com vs Lichess ratings.
Is a 400 in blitz as strong as a 400 in rapid?
No, the blitz players are the stronger. On Chess.com, players rated 400 in blitz 3+0 play about as well, move for move, as players rated 464 in rapid 10+0. That compares the quality of the moves, not what one player would be rated at both speeds. Every rating at both speeds: blitz vs rapid ratings.
400 rating everywhere else
This page opens on Chess.com blitz 3+0, and the choice at the top changes every table on it. The same tables and answers for the other two are below.
Chess.com blitz 5+0
What a 400 actually does in Chess.com blitz 5+0
| Measure | 300 | 400 | 500 |
|---|---|---|---|
| Blunders | 26.6 | 23.7 | 21.7 |
| Mistakes | 17.1 | 16.3 | 16.4 |
| Inaccuracies | 10.8 | 11.1 | 11.5 |
| Average centipawn loss | 89.7 | 83.4 | 78.9 |
| Plays the engine's top move | 28% | 29% | 30% |
| Finds the only moveshare of positions with one real answer | 61% | 64% | 66% |
| Game length | 28.5 | 29.7 | 30.6 |
| Live moves per gamemoves played while the game is not already decided | 10.6 | 11.8 | 12.8 |
| How they use the clock | |||
| Games in time troubleunder a tenth of the clock | 18% | 17% | 17% |
| Seconds per move | 6.8 | 6.5 | 6.3 |
| Instant movesplayed in two seconds or less | 23% | 25% | 26% |
| Clock left at move 8share of the starting clock | 87% | 88% | 89% |
| Clock left at move 15share of the starting clock | 69% | 71% | 73% |
| Clock left at move 30in games that get there | 38% | 40% | 40% |
| Clock left at move 50in games that get there | 23% | 25% | 24% |
| Moves played inside a scrambleown clock under a tenth | 2.4% | 2.4% | 2.1% |
| What the game looks like | |||
| Games that end decisivelywon or lost, not drawn | 97% | 97% | 97% |
| Reaches an endgame | 24% | 24% | 26% |
| Capturesper 100 own moves | 27.6 | 27.3 | 27.3 |
| Checksper 100 own moves | 10.6 | 10.9 | 10.3 |
How others play against a 400 in Chess.com blitz 5+0
| Result | 300 | 400 | 500 |
|---|---|---|---|
| How the game goes | |||
| Score against them | 40.0% | 50.0% | 54.2% |
| Converting and defending | |||
| Score after reaching +1 | 54% | 65% | 73% |
| Score after reaching +2 | 58% | 69% | 76% |
| Ever loses from +4 | 31% | 22% | 16% |
| Score from lost positionsgames where their eval fell to minus two | 27% | 35% | 40% |
Each column is how players of that rating do in their games against a 400.
Where a 400 blunders in Chess.com blitz 5+0
| Measure | 300 | 400 | 500 |
|---|---|---|---|
| When in the game | |||
| Opening | 19.8 | 17.0 | 14.8 |
| Middlegame | 34.2 | 30.7 | 28.1 |
| Endgame | 29.4 | 26.5 | 23.8 |
| In what kind of position | |||
| Winning | 25.4 | 23.1 | 22.8 |
| Better | 19.8 | 17.5 | 15.1 |
| Balanced | 17.3 | 15.1 | 13.2 |
| Worse | 20.5 | 18.6 | 17.0 |
| With how much clock left | |||
| Over half | 24.4 | 21.8 | 19.9 |
| 25 to 50% | 37.2 | 33.5 | 29.9 |
| 10 to 25% | 37.2 | 33.8 | 30.6 |
| Under 10% | 40.7 | 36.4 | 35.5 |
| With which piece | |||
| Queen | 30.7 | 27.7 | 25.6 |
| Rook | 32.3 | 28.9 | 26.1 |
| Knight | 27.0 | 23.8 | 21.7 |
| Bishop | 23.8 | 21.3 | 20.0 |
| Pawn | 24.9 | 22.4 | 20.1 |
| King | 25.1 | 21.4 | 19.3 |
The four rows under “In what kind of position” leave out positions that are already won or already lost. Throwing away a won game still counts in the overall blunder rate, which is why that rate can be higher than all four.
How much 400-rated players differ in Chess.com blitz 5+0
| Measure | 5% | 25% | 75% | 95% |
|---|---|---|---|---|
| Blunders | 19.2 | 21.9 | 26.2 | 29.9 |
| Mistakes | 14.0 | 15.2 | 17.4 | 19.1 |
| Inaccuracies | 9.7 | 10.4 | 11.6 | 12.4 |
| Finds the only move | 55% | 60% | 68% | 74% |
| Seconds per move | 4.3s | 5.5s | 7.4s | 8.9s |
| Games in time trouble | 1% | 8% | 23% | 37% |
Each column is a share of 400-rated players: a quarter are at or under the 25% figure, three quarters at or under the 75% one.
What separates a 400 from a 700 in Chess.com blitz 5+0
| Skill, and what trains it | 400 | 700 | Gap |
|---|---|---|---|
| Finds the forkknight and queen forks, both directions | 38% | 52% | +14 pts |
| Opening blundersthe first ten moves of your openings | 17.0 | 11.3 | 33% lower |
| Middlegame blundersa check-captures-threats scan every move | 30.7 | 23.4 | 24% lower |
| Composure after an errorresetting after you drop something | 8.3% | 6.6% | 20% lower |
| Sees the deeper wincalculating past the third move of a line | 31% | 37% | +6 pts |
| Trades down when aheadconverting an advantage by liquidating | 45% | 52% | +7 pts |
| Endgame blundersrook endings and king activity | 26.5 | 22.2 | 16% lower |
| Finds the defensive savedefending worse positions instead of collapsing | 45% | 50% | +5 pts |
| Finds the quiet best movepositions where nothing is forcing | 48% | 52% | +4 pts |
| Takes the free materialspotting hanging pieces before anything else | 76% | 83% | +7 pts |
What a 400 plays in Chess.com blitz 5+0
As White
| First move | Share | Score |
|---|---|---|
| 1.e4King's Pawn | 66.2% | 49.8% |
| 1.d4Queen's Pawn | 19.3% | 51.0% |
| 1.e3Van't Kruijs | 4.5% | 47.7% |
| Every other move | 10% | n/a |
Against 1.e4
| Reply | Share | Score |
|---|---|---|
| 1...e5Open Game | 58.2% | 46.4% |
| 1...d5Scandinavian Defense | 14.2% | 49.5% |
| 1...e6French Defense | 6.5% | 48.4% |
| Every other move | 21% | n/a |
Against 1.d4
| Reply | Share | Score |
|---|---|---|
| 1...d5Closed Game | 51.1% | 42.8% |
| 1...e61...e6, usually a French or Queen's Gambit | 11.6% | 43.1% |
| 1...e5Englund Gambit | 10.7% | 48.2% |
| Every other move | 27% | n/a |
What punishes a 400 in Chess.com blitz 5+0
| The idea that refuted the blunder | Share of blunders |
|---|---|
| Piece left hanging | 25% |
| Losing exchange | 12% |
| Fork | 11% |
| Discovered attack | 11% |
| Pin or skewer | 8% |
Questions about a 400 in Chess.com blitz 5+0
- Chess.com blitz 5+0: Is 400 a good chess rating?
- 400 is near the bottom of the range of chess ratings. 41% of Chess.com blitz players are rated below 400, but the middle player there is rated only about 485. The word is for how a 400 plays, not for where it ranks on Chess.com: move for move, a 400 on Chess.com plays like a 906 on Lichess, where 8% of blitz players are rated lower.
- Chess.com blitz 5+0: What percentile is 400 Elo?
- A 400 rating is about the 41st percentile on Chess.com. 59% of Chess.com blitz players are rated 400 or higher. Every rating side by side: the Chess.com rating guide.
- Chess.com blitz 5+0: How accurate is a 400 rated chess player?
- A 400-rated player plays the engine's top choice on 29% of moves in Chess.com blitz 5+0 and loses 83.4 centipawns per move on average. Going up the ratings, 400 is where the average loss first drops under 85 centipawns a move.
- Chess.com blitz 5+0: How many blunders does a 400 make per game?
- A 400-rated player makes about 2.8 blunders per game in Chess.com blitz 5+0, counting a move that loses at least 150 centipawns while the game is not already decided. A 100 makes about 3.2 and a 700 about 2.7.
- Chess.com blitz 5+0: Do 400 rated players blunder more in time trouble?
- Yes. With under 10% of the clock left, a 400-rated player blunders 1.7 times as often as with more than half of it. A 400 gets that low on time in 17% of games in Chess.com blitz 5+0. The effect is bigger higher up: 1.9 times as often for a 700.
- Chess.com blitz 5+0: What mistakes do 400 rated players make?
- 25% of the blunders a 400-rated player makes in Chess.com blitz 5+0 are a piece simply left hanging, the most common kind. That share is 31% at 100 and 24% at 700. Blunders involving a losing exchange grow at this level: 12%, up from 10% at 100.
- Chess.com blitz 5+0: When in the game do 400 rated players blunder most?
- A 400-rated player blunders most in the middlegame in Chess.com blitz 5+0: on 30.7 of every 100 live moves there, against 26.5 in the endgame and 17.0 in the opening.
- Chess.com blitz 5+0: What openings do 400 rated players play?
- As White in Chess.com blitz 5+0, 66.2% of players rated around 400 open with e4, the King's Pawn, and 19.3% open with d4, the Queen's Pawn. The King's Pawn is opened more as ratings rise: 60.3% around 100, 66.6% around 700. Against e4, the most common reply is e5, the Open Game, played in 58.2% of games, ahead of d5, the Scandinavian Defense, at 14.2%.
- Chess.com blitz 5+0: How does a 400 do against a 500?
- A 400 scores 45.8% against a 500 in Chess.com blitz 5+0. Against a 300 they score 60.0%.
- Chess.com blitz 5+0: What is 400 on Chess.com in Lichess rating?
- A 400 on Chess.com is about 906 on Lichess in blitz 5+0, 506 points higher. The gap between the two sites changes with rating, so no single number converts every rating. Every rating converted, both ways: Chess.com vs Lichess ratings.
- Chess.com blitz 5+0: Is a 400 in blitz as strong as a 400 in rapid?
- No, the blitz players are the stronger. On Chess.com, players rated 400 in blitz 5+0 play about as well, move for move, as players rated 542 in rapid 10+0. That compares the quality of the moves, not what one player would be rated at both speeds. Every rating at both speeds: blitz vs rapid ratings.
Chess.com rapid 10+0
What a 400 actually does in Chess.com rapid 10+0
| Measure | 300 | 400 | 500 |
|---|---|---|---|
| Blunders | 33.0 | 28.9 | 25.7 |
| Mistakes | 16.9 | 17.0 | 16.8 |
| Inaccuracies | 9.7 | 10.4 | 10.8 |
| Average centipawn loss | 98.4 | 90.2 | 84.1 |
| Plays the engine's top move | 26% | 28% | 29% |
| Finds the only moveshare of positions with one real answer | 53% | 59% | 63% |
| Game length | 29.4 | 29.8 | 30.8 |
| Live moves per gamemoves played while the game is not already decided | 9.5 | 10.2 | 11.4 |
| How they use the clock | |||
| Games in time troubleunder a tenth of the clock | 6% | 6% | 6% |
| Seconds per move | 9.3 | 9.1 | 9.0 |
| Instant movesplayed in two seconds or less | 16% | 18% | 18% |
| Clock left at move 8share of the starting clock | 90% | 91% | 91% |
| Clock left at move 15share of the starting clock | 78% | 79% | 80% |
| Clock left at move 30in games that get there | 54% | 55% | 56% |
| Clock left at move 50in games that get there | 37% | 40% | 39% |
| Moves played inside a scrambleown clock under a tenth | 1.1% | 1.0% | 0.7% |
| What the game looks like | |||
| Games that end decisivelywon or lost, not drawn | 95% | 96% | 95% |
| Reaches an endgame | 26% | 27% | 28% |
| Capturesper 100 own moves | 27.2 | 27.3 | 27.2 |
| Checksper 100 own moves | 12.6 | 12.7 | 12.4 |
How others play against a 400 in Chess.com rapid 10+0
| Result | 300 | 400 | 500 |
|---|---|---|---|
| How the game goes | |||
| Score against them | 41.5% | 50.0% | 59.8% |
| Converting and defending | |||
| Score after reaching +1 | 56% | 64% | 70% |
| Score after reaching +2 | 59% | 67% | 73% |
| Ever loses from +4 | 29% | 22% | 18% |
| Score from lost positionsgames where their eval fell to minus two | 24% | 33% | 36% |
Each column is how players of that rating do in their games against a 400.
Where a 400 blunders in Chess.com rapid 10+0
| Measure | 300 | 400 | 500 |
|---|---|---|---|
| When in the game | |||
| Opening | 26.3 | 22.7 | 19.5 |
| Middlegame | 41.5 | 36.5 | 32.7 |
| Endgame | 31.0 | 28.2 | 23.4 |
| In what kind of position | |||
| Winning | 30.6 | 27.0 | 24.7 |
| Better | 26.6 | 21.9 | 19.4 |
| Balanced | 22.0 | 18.7 | 16.3 |
| Worse | 24.8 | 22.3 | 19.4 |
| With how much clock left | |||
| Over half | 32.0 | 28.1 | 24.9 |
| 25 to 50% | 42.2 | 38.2 | 32.4 |
| 10 to 25% | 40.1 | 34.3 | 32.9 |
| Under 10% | 41.1 | 31.6 | 38.7 |
| With which piece | |||
| Queen | 38.2 | 34.2 | 30.3 |
| Rook | 39.3 | 34.0 | 30.4 |
| Knight | 33.8 | 28.7 | 26.3 |
| Bishop | 30.7 | 26.7 | 23.4 |
| Pawn | 30.1 | 26.9 | 24.2 |
| King | 29.5 | 25.9 | 21.5 |
The four rows under “In what kind of position” leave out positions that are already won or already lost. Throwing away a won game still counts in the overall blunder rate, which is why that rate can be higher than all four.
How much 400-rated players differ in Chess.com rapid 10+0
| Measure | 5% | 25% | 75% | 95% |
|---|---|---|---|---|
| Blunders | 24.1 | 27.1 | 31.3 | 34.4 |
| Mistakes | 14.6 | 15.8 | 17.8 | 19.7 |
| Inaccuracies | 8.8 | 9.6 | 10.9 | 12.0 |
| Finds the only move | 50% | 56% | 63% | 69% |
| Seconds per move | 5.2s | 7.3s | 10.5s | 12.7s |
| Games in time trouble | 0% | 0% | 8% | 19% |
Each column is a share of 400-rated players: a quarter are at or under the 25% figure, three quarters at or under the 75% one.
What separates a 400 from a 700 in Chess.com rapid 10+0
| Skill, and what trains it | 400 | 700 | Gap |
|---|---|---|---|
| Opening blundersthe first ten moves of your openings | 22.7 | 15.1 | 34% lower |
| Middlegame blundersa check-captures-threats scan every move | 36.5 | 26.9 | 26% lower |
| Composure after an errorresetting after you drop something | 9.6% | 7.3% | 24% lower |
| Endgame blundersrook endings and king activity | 28.2 | 21.8 | 23% lower |
| Finds the defensive savedefending worse positions instead of collapsing | 42% | 51% | +9 pts |
| Finds the quiet best movepositions where nothing is forcing | 43% | 50% | +7 pts |
| Trades down when aheadconverting an advantage by liquidating | 42% | 47% | +5 pts |
| Takes the free materialspotting hanging pieces before anything else | 73% | 80% | +7 pts |
| Sees the deeper wincalculating past the third move of a line | 30% | 35% | +5 pts |
| Finds the forkknight and queen forks, both directions | 36% | 41% | +5 pts |
What a 400 plays in Chess.com rapid 10+0
As White
| First move | Share | Score |
|---|---|---|
| 1.e4King's Pawn | 67.7% | 50.5% |
| 1.d4Queen's Pawn | 16.7% | 50.7% |
| 1.e3Van't Kruijs | 4.9% | 52.5% |
| Every other move | 11% | n/a |
Against 1.e4
| Reply | Share | Score |
|---|---|---|
| 1...e5Open Game | 59.8% | 47.9% |
| 1...d5Scandinavian Defense | 14.0% | 47.0% |
| 1...e6French Defense | 6.0% | 47.3% |
| Every other move | 20% | n/a |
Against 1.d4
| Reply | Share | Score |
|---|---|---|
| 1...d5Closed Game | 48.1% | 47.4% |
| 1...e61...e6, usually a French or Queen's Gambit | 13.4% | 49.8% |
| 1...e5Englund Gambit | 11.1% | 43.1% |
| Every other move | 27% | n/a |
What punishes a 400 in Chess.com rapid 10+0
| The idea that refuted the blunder | Share of blunders |
|---|---|
| Piece left hanging | 26% |
| Losing exchange | 12% |
| Fork | 11% |
| Discovered attack | 11% |
| Pin or skewer | 8% |
Questions about a 400 in Chess.com rapid 10+0
- Chess.com rapid 10+0: Is 400 a good chess rating?
- 400 is near the bottom of the range of chess ratings. 38% of Chess.com rapid players are rated below 400, but the middle player there is rated only about 498. The word is for how a 400 plays, not for where it ranks on Chess.com: move for move, a 400 on Chess.com plays like an 830 on Lichess, where 8% of rapid players are rated lower.
- Chess.com rapid 10+0: What percentile is 400 Elo?
- A 400 rating is about the 38th percentile on Chess.com. 62% of Chess.com rapid players are rated 400 or higher. Every rating side by side: the Chess.com rating guide.
- Chess.com rapid 10+0: How accurate is a 400 rated chess player?
- A 400-rated player plays the engine's top choice on 28% of moves in Chess.com rapid 10+0 and loses 90.2 centipawns per move on average. Going up the ratings, 400 is where the average loss first drops under 95 centipawns a move.
- Chess.com rapid 10+0: How many blunders does a 400 make per game?
- A 400-rated player makes about 2.9 blunders per game in Chess.com rapid 10+0, counting a move that loses at least 150 centipawns while the game is not already decided. 400 is the first rating to average under 3 blunders a game.
- Chess.com rapid 10+0: Do 400 rated players blunder more in time trouble?
- A little. With under 10% of the clock left, a 400-rated player blunders 12% more often than with more than half of it. A 400 gets that low on time in 6% of games in Chess.com rapid 10+0. The effect is bigger higher up: 35% more often for a 700.
- Chess.com rapid 10+0: What mistakes do 400 rated players make?
- 26% of the blunders a 400-rated player makes in Chess.com rapid 10+0 are a piece simply left hanging, the most common kind. That share is 35% at 100 and 25% at 700. Blunders involving a losing exchange grow at this level: 12%, up from 9% at 100.
- Chess.com rapid 10+0: When in the game do 400 rated players blunder most?
- A 400-rated player blunders most in the middlegame in Chess.com rapid 10+0: on 36.5 of every 100 live moves there, against 28.2 in the endgame and 22.7 in the opening.
- Chess.com rapid 10+0: What openings do 400 rated players play?
- As White in Chess.com rapid 10+0, 67.7% of players rated around 400 open with e4, the King's Pawn, and 16.7% open with d4, the Queen's Pawn. The King's Pawn is opened more as ratings rise: 60.1% around 100, 69.7% around 700. Against e4, the most common reply is e5, the Open Game, played in 59.8% of games, ahead of d5, the Scandinavian Defense, at 14.0%.
- Chess.com rapid 10+0: How does a 400 do against a 500?
- A 400 scores 40.2% against a 500 in Chess.com rapid 10+0. Against a 300 they score 58.5%.
- Chess.com rapid 10+0: What is 400 on Chess.com in Lichess rating?
- A 400 on Chess.com is about 830 on Lichess in rapid 10+0, 430 points higher. The gap between the two sites changes with rating, so no single number converts every rating. Every rating converted, both ways: Chess.com vs Lichess ratings.
- Chess.com rapid 10+0: Is a 400 in rapid as strong as a 400 in blitz?
- No, the rapid players are the weaker. On Chess.com, players rated 400 in rapid 10+0 play about as well, move for move, as players rated 320 in blitz 3+0. That compares the quality of the moves, not what one player would be rated at both speeds. Every rating at both speeds: blitz vs rapid ratings.