B
IM
Bartholomew, John
USA·Born 1986·FIDE #2019353·845 Games
Classical2446832 Games
Rapid24437 Games
Blitz24166 Games
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845 games analyzed
Statistics
Total
845Wins
368Draws
251Losses
22644%30%27%
Play Style
What you need to know before facing themVery high accuracy: 89.5% average
Very consistent (86%)
Very precise: only 0.3 blunders/game
Dominates 1.d4 ♔ (63% in 220 games)
Deep Analysis
Stockfish 18 · Classical games · 86 analyzedAccuracy by phase
Opening
96.1%
Middlegame
91.5%
Endgame
93.1%
Clutch Factor — Move accuracy when winning vs. equal vs. losing — does their level drop when the game turns against them?
+4%Winning (+2 or more)
91%49g
Equal position
91%14g
Losing (-2 or more)
87%23g
Performance under pressure
Problematic Pieces — Which pieces cause most errors?
21%
33 errors
19%
30 errors
18%
29 errors
17%
27 errors
15%
23 errors
10%
16 errors
Critical Moment — When does the first serious error occur?
Move 37 average4%
12%
38%
29%
17%
1-15
16-25
26-35
36-45
46+
38% of blunders occur between move 26-35. Keep tension until that moment.
Error Heatmap — Where do most errors occur?
7
8
7
FewMany
Errors mapped
58
Hotspot zone
e5 / d7
Critical squares
e5
8 err
d7
7 err
e4
7 err
c4
6 err
d5
6 err
e5/d7 concentrate most errors. Force decisions in those zones.
Openings
Based on player gamesWeaknesses
— exploit these linesNo significant weaknesses detected as White
No significant weaknesses detected as Black
Strengths
— avoid these linesWhite66.7%Wins
Queen's Gambit Declined — 1.d4 d5 2.c4 e612 Games · last played 4 years ago
White63.2%Wins
Grünfeld — 1.d4 Nf6 2.c4 g6 3.Nc3 d519 Games · last played 6 years ago
Black60.0%Wins
Sicilian: e6 Systems — 1.e4 c5 2.Nf3 e615 Games · last played 4 years ago
Black45.5%Wins
Sicilian: d6 Systems — 1.e4 c5 2.Nf3 d622 Games · last played 2 years ago
Critical Blunders
10 errors · Stockfish#39Ng1??vs DudaOTB · 2026
#29Kg7??vs KashlinskayaBlitz · 2020
#33Ne5??vs KashlinskayaBlitz · 2020
#39Rxd7??vs KashlinskayaBlitz · 2020
#20b4??vs KashlinskayaBlitz · 2020
#24Bf5??vs KashlinskayaBlitz · 2020
#41Be5??vs KashlinskayaBlitz · 2020
#15Qh4??vs KashlinskayaBlitz · 2020
#35Ke8??vs ShahadeBlitz · 2020
#34Qg4??vs ShahadeBlitz · 2020
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Endgame Statistics
PRO20 endgame categories analyzedEndgame Statistics
Reveal weaknesses →
20 endgame categories analyzed — discover where they collapse under pressure
Repertoire
6
5
4
3
Move arrowsmost-played moves
Stockfish
419 Games
45%32%23%
MoveGamesPerformance%
1.d4
22063%
1.Nf3
11359%
1.e4
6656%
1.c4
1958%
1.b3Weak
10%
USA