GM

Galaviz Medina, Sion Radamantys

MEX MEX·Born 2005·FIDE #5123119·876 Games

Classical2513799 Games
Rapid243736 Games
Blitz243860 Games

Statistics

876

Total

450

Wins

217

Draws

209

Losses

51%25%24%

Play Style

What you need to know before facing them

Elite accuracy: 93.0% average
High resilience (60%): Dangerous even when losing
Solid conversion: 92%
Very consistent (88%)
Very precise: only 0.1 blunders/game
Dominates 1.e4 ♚ (67% in 208 games)
Vulnerable to 1.Nf3 ♚ (only 43%)

Deep Analysis

Stockfish 18 · Classical games · 342 analyzed

Accuracy by phase
Opening96.6%
Middlegame93.1%
Endgame95.0%

Clutch Factor

Performance under pressure

+5%
Winning (+2 or more)94%
172 Games
Equal position94%
106 Games
Losing (-2 or more)89%
64 Games

Problematic Pieces

Which pieces cause most errors?

23%
75 errors
20%
63 errors
16%
52 errors
14%
45 errors
14%
46 errors
12%
40 errors

Critical Moment

When does the first serious error occur?

Move 45average
1-15
16-25
26-35
36-45
46+
45% of blunders occur between move 46+. Keep tension until that moment.

Error Heatmap

Where do most errors occur?

10
8
11
12
16
10
9
9
9
8
abcdefgh
Many
Few
Critical squares
e516 err
d512 err
f611 err
e710 err
f510 err
e5/d5 concentrate most errors. Force decisions in those zones.

Recent Games

W
Battey, Alexander2335

LXXI Mexican Open 2026 · 5 Apr 2026

1-0
D
Martinez Alcantara, Jose Eduardo2656

LXXI Mexican Open 2026 · 4 Apr 2026

½-½
D
Jimenez Garcia, Emmanuel2347

LXXI Mexican Open 2026 · 4 Apr 2026

½-½
D
Sandoval Mercado, Carlos2427

LXXI Mexican Open 2026 · 3 Apr 2026

½-½
W
Montes Orozco, Miguel Angel2299

LXXI Mexican Open 2026 · 3 Apr 2026

1-0
W
Morales Garcia, Sergio Joshafatt2228

LXXI Mexican Open 2026 · 2 Apr 2026

0-1

Openings

Based on player games

Weaknesses

EXPLOIT!
White

No significant weaknesses detected as White

Black

No significant weaknesses detected as Black

Strengths

AVOID
White
Slav Defense
81.0%
21 Games·Wins

1.d4 d5 2.c4 c6

Grünfeld
81.8%
11 Games·Wins

1.d4 Nf6 2.c4 g6 3.Nc3 d5

Black
Sicilian: d6 Systems
48.6%
111 Games·Wins

1.e4 c5 2.Nf3 d6

Critical Blunders

Tactical errors analyzed with Stockfish

10 errors
#96Re5??
Endgame
vs Alhassadi
Blitz·2025
#44Qxb7+??
Endgame
vs Samadov
Blitz·2025
#43Kd6??
Endgame
vs Nguyen
Blitz·2025
#37Rdd3??
Tactics
vs Vakhidov
Blitz·2025
#18hxg4??
Tactics
vs Can
Blitz·2025
#35Qxb2??
Tactics
vs Peyrer
Blitz·2025
#41Qg3??
Endgame
vs Grebnev
Blitz·2025
#24Ne4??
Tactics
vs Gavrilescu
Rapid·2025
#49Ke7??
Endgame
vs Sanal
Blitz·2025
#29Rxh6+??
Tactics
vs Liu
OTB·2025
Endgame Statistics

23 endgame categories analyzed — discover where they collapse under pressure

Repertoire
☰ All
♟ Classical
⚡ Rapid
🔥 Blitz
PRO
·
2026
2025
2024
2023
2022
2021
PRO
8
7
6
5
4
3
2
1a
b
c
d
e
f
g
h
436 Games
56%21%23%
1.d4
67%
433
1.Nf3
0%
2
1.c4
50%
1
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