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Jan-Krzysztof Duda's openings
Chess.com· GM· Rank 8· 🇵🇱·
Jan-Krzysztof Duda's most played openings in 84 recent Chess.com bullet games: Queen's Pawn Game as White (8 games, 75% score); as Black vs Zukertort Opening (15 games, 40% score).
You vs Jan-Krzysztof Duda: which openings to play
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Key findings
As Black
Where Jan-Krzysztof Duda scores below ratings
Where Jan-Krzysztof Duda scores best
Games
84
Bullet
Score
71%
win = 1, draw = ½
As White
40
71% score
As Black
44
72% score
Rating
3145
Bullet
As White
Score counts a win as 1 and a draw as ½.
OpeningGamesScoreW / D / LAvg oppPerf
8
75%
6/0/2
2971
3171
4
100%
4/0/0
2835
3235
3
33%
1/0/2
3007
2873
3
83%
2/1/0
3047
3313
As Black
Score counts a win as 1 and a draw as ½.
OpeningGamesScoreW / D / LAvg oppPerf
15
40%
6/0/9
3035
2955
5
100%
5/0/0
2756
3156
5
100%
5/0/0
2969
3369
4
100%
4/0/0
3024
3424
3
100%
3/0/0
3000
3400
How these numbers work
- Score: a win counts 1 and a draw ½, divided by the games played in that opening.
- Expected score (“ratings predict”): what the Elo formula predicts from both players' ratings in those games. A score more than 5 percentage points above it is green, more than 5 below is red, anything in between is on par.
- Performance (Perf): the average opponent rating + 800 × (score − 50%), a simple linear estimate; the average opponent is shown beside it.
- Sample size: key findings use openings with 5 or more games. How much to trust this score: fewer than 10 games is a small sample and only a hint, 10 to 29 is a medium sample, 30 or more is a solid sample.
- Games: finished Chess.com games, up to 150 as White and 150 as Black, grouped by opening and time control.
Data: Chess.com public API. Jan-Krzysztof Duda on Chess.com
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