Mastrovasilis, Dimitrios

GRE GRE·Born 1983·FIDE #4202694

2525Classical

2515Rapid

2531Blitz

Statistics

Total2,285

Wins966

Draws961

Losses357

42%42%16%

Play Style

before facing themWhat you need to know before facing them

Elite accuracy: 95.0% average

Solid conversion: 81%

Very consistent (93%)

Very precise: only 0.0 blunders/game

Dominates 1.c4 as

(82% in 14 games)

Play against Mastrovasilis's Twin

Uses their openings, level & style

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Ready to play

2,285 games analyzed

Deep Analysis

Stockfish 18 · Classical · 380 analyzedStockfish 18 · Classical games · 380 analyzed

Accuracy by phase

Opening

96.9%

Middlegame

94.3%

Endgame

96.0%

Clutch Factor

+4%

Winning (+2)Winning (+2)

95%130g

EqualEqual position

96%200g

Losing (−2)Losing (−2)

91%50g

Accuracy under pressure

Problematic Pieces — which cause most errors?

24%

46 err

19%

35 err

19%

36 err

13%

24 err

13%

24 err

13%

24 err

Critical Moment

Move 35 avg

1-15

33%

16-25

17%

26-35

25%

36-45

25%

46+

33% of blunders occur after move 16-25 — keep tension until then.of blunders occur after move 16-25 — keep tension until then.

Error Heatmap — where do errors occur?

Few

Many

Errors mapped

Hotspot zone

d6 / c2

Critical squares

9 err

8 err

7 err

6 err

d6/c2 concentrate most errors. Force decisions in those zones.

Openings

2,285 gamesBased on 2,285 player games

Weaknesses

— exploit these— exploit these lines

aswhite63.6%losses

Sicilian: Closed — 1.e4 c5 2.Nc3 Nc6

11 games · last played last yearPlay this line

No significant weaknesses detected as black

Strengths

— avoid these— avoid these lines

aswhite73.3%wins

Sicilian: Sveshnikov — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e515 g15 games · last played last year

aswhite69.6%wins

Scandinavian Defense — 1.e4 d5 2.exd5 Qxd523 g23 games · last played 9 months ago

asblack52.6%wins

Sicilian: e6 Systems — 1.e4 c5 2.Nf3 e6232 g232 games · last played last month

asblack46.7%wins

Reti: Reversed London — 1.Nf3 d5 2.g3 c615 g15 games

Critical Blunders

10 errors · Stockfish

#13Kf8??Tacticsvs ZafeiriouRapid · 2025

#40Qc2??Tacticsvs GiriOTB · 2025

#52Kd7??Endgamevs MeersOTB · 2025

#68Bg2??Endgamevs FierOTB · 2025

#33Kg7??Tacticsvs NarvaBlitz · 2024

#36Qc4+??Tacticsvs GorajBlitz · 2024

#60Kg2??Endgamevs OliinykBlitz · 2024

#12Bf4??Tacticsvs LaudaBlitz · 2024

#13O-O??Tacticsvs KrallisBlitz · 2024

#15N1d2??Tacticsvs VyvalBlitz · 2024

Recent Games

2,285 games

Win

Tsarsitalidis, Konstantinos(2230)

53rd TCh-GRE 2026 · 10 Jul 2026

1-0

Draw

Vlachos, Anatole(2493)

53rd TCh-GRE 2026 · 9 Jul 2026

½-½

Draw

Alexakis, Dimitris(2525)

53rd TCh-GRE 2026 · 8 Jul 2026

½-½

Win

Kotronias, Vasilios(2374)

53rd TCh-GRE 2026 · 7 Jul 2026

0-1

Win

Malikentzos, Sotirios(2437)

53rd TCh-GRE 2026 · 6 Jul 2026

1-0

Loss

Georgakopoulos, Nikolaos K.(2257)

53rd TCh-GRE 2026 · 4 Jul 2026

1-0

Endgame Statistics

PRO276 endgames (58.2%) · avoid Opposite-Color Bishops (7%)

Strongest

79.4%

R+Bishop vs R+Knight

Weakest

60.6%

Pure Pawn

Reaches Endgame

58.2%

276 / 474

B vs N Pref

52.4%·47.8%

prefers the bishop

PiecesTypeWin %games

Rook + Equal Minors

77.9%353

R+Bishop vs R+Knight

79.4%306

Rook vs Minor (Exchange)

73.7%281

Rook vs Rook

72.6%252

Rook vs Two Minors

78.1%160

Pure Pawn

60.6%109

Rook + Equal Minors77.9%353

R+Bishop vs R+Knight79.4%306

Rook vs Minor (Exchange)73.7%281

Rook vs Rook72.6%252

Rook vs Two Minors78.1%160

Pure Pawn60.6%109

Weak in Opposite-Color Bishops: only 7% win rate (15 games) — Force thisShow all 14 types

Unlock Endgame Statistics

14 endgame categories — discover where they collapse under pressure

Repertoire

PRO

Move arrowsmost-played moves

Starting Position

SF18

1,132 games

48%40%12%

Move	games	%
1.e4	1073	68%
1.Nf3Strong	30	80%
1.c4Strong	14	82%
1.d4	9	67%
1.g3Strong	3	100%
1.a3Strong	1	100%
1.b3Strong	1	100%
1.f4	1	50%

MovegamesPerf%

1.e4

1073

68%

1.Nf3Strong

80%

1.c4Strong

82%

1.d4

67%

1.g3Strong

100%

1.a3Strong

100%

1.b3Strong

100%

1.f4

50%