Scouting report: Steven Zierk (GM, USA)

1,828 over-the-board games in the Chess Stalker database (1,807 classical, 16 rapid, 5 blitz): 59% wins, 15% draws, 26% losses. FIDE rating 2489 standard, 2517 rapid, 2459 blitz. 202 games analyzed with Stockfish: 93% accuracy, 0.2 blunders per game.

  • Opening repertoire of Steven Zierk as White and Black, with results per line — free.
  • Weaknesses and blunder patterns, evaluated with Stockfish — free.
  • Recent over-the-board games and endgame statistics.
  • Twin Bot: a sparring bot that imitates Steven Zierk's style so you can rehearse the matchup — free online.

Full report: https://chessstalker.com/fide/2034255 — no account needed.

Steven Zierk

GM

United Statesborn 1993FIDE ID 2034255

Rating & statistics

FIDE rating lists · Sep 2023 – Sep 2026
2440
2480
2520
2488 · Sep 2023
Oct
2024
Apr
Jul
Oct
2025
Apr
Jul
Oct
2026
Apr
Jul
Oct
Sep 2023Oct 2026
2517
2489
2459
2517peak, Sep 2019
1,828games
1,080wins, 59%
275draws, 15%
473losses, 26%

Play style

before facing them
Elite accuracy: 92.6% average
Very consistent (84%)
Very precise: only 0.2 blunders/game
Dominates 1.e4 as ♔ (69% in 807 games)

Play against Zierk's Twin

Their real openings, level & style

Based on 1,828 games

Openings

1,828 games

Weaknesses

where they slip as ♔ White
Ruy Lopez: Berlin1.e4 e5 2.♞f3 ♞c6 3.♝b5 ♞f616 games, last played 2 weeks ago50.0%losses

Strengths

what holds up for them as ♔ White
Caro-Kann: Exchange1.e4 c6 2.d4 d5 3.exd544 games, last played 2 years ago75.0%wins
Sicilian: d6 Systems1.e4 c5 2.♞f3 d6148 games, last played last week61.5%wins

Deep analysis

Stockfish · Classical · 202 analyzed
Accuracy by phase
Opening
96.4%
Middlegame
92.8%
Endgame
94.9%
Clutch factor
+3%
Winning (+2)
94%
Equal
95%
Losing (−2)
91%
Problematic pieces
23%
68 err
20%
57 err
18%
53 err
15%
44 err
14%
40 err
10%
28 err
Critical moment
Move 39 avg
0%
1-15
22%
16-25
19%
26-35
26%
36-45
33%
46+
33% of blunders occur after move 46. Keep tension until then.
Error heatmap · Critical squares
14
12
Few
Many
d5
14
d4
12
e4
11
g4
10
f4
9
d5/d4 concentrate most errors. Force decisions in those zones.

Critical blunders

10 errors
#51
♝f6?? vs Martinez Alcantara
Endgame · OTB · 2026
#58
hxg4?? vs Sarana
Endgame · OTB · 2026
#16
♝f4?? vs Bluebaum
Middlegame · OTB · 2026
#17
♝xc2?? vs Movahed
Middlegame · OTB · 2026
#36
♝xe3?? vs Tabatabaei
Endgame · OTB · 2026
#17
♞f5?? vs Indjic
Middlegame · OTB · 2026

Recent games

Bozorov, Javohir(2208)

1st 3-0 Thursday · 10 Sept 2026

1–0
Negrean, Andrei(2292)

1st 3-0 Thursday · 10 Sept 2026

1–0
Shamsuddin, Sayyid Usmon(2120)

1st 3-0 Thursday · 10 Sept 2026

0–1
Weetik, Vjacheslav(2423)

1st 3-0 Thursday · 10 Sept 2026

1–0
Belov,Alexe(2421)

1st 3-0 Thursday · 10 Sept 2026

1–0
Zhurova, Anna(2284)

1st 3-0 Thursday · 10 Sept 2026

1–0

Endgame statistics

Repertoire

PRO
1,828 games in scope
8
7
6
5
4
3
2
1a
b
c
d
e
f
g
h
927 games63%W14%D23%L
Move
1. e4
8071w
62%1424
69%
1. d4
432y
67%21
78%
1. b3
384y
74%16
82%
1. ♞f3
271y
70%1515
78%
1. c4
126y
83%
88%

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