Grünfeld Defense
48 variations · 3.5M games from Lichess · Updated January 2026
Black expected score · Overall
49.8%
the worst score you would still get, 90% confident. Its best is the same figure — the band is too tight to plot.
Measured over 3.5M games at this level and clock.
Roughly even — the middlegame decides more than this opening choice does.
Outcomes for Black
Draw 5.7 · Score = win + ½ of the draws · 3.5M games
- Rank among the families Black can choose here
- #9 of 62
- Games in this context
- 3.5M
- Best context
- 54.0% at 0-999 Rapid
- Worst context
- 41.8% at 2200-2499 Classical
- Variations measured
- 48
- Average game length
- 36 moves
Best and worst are the strongest and weakest squares with at least 500 games behind them. The table further down shows every square, including thinner ones.
What to play from here
Black · OverallThese are the moves players actually choose from here, ranked by how they score. A higher score is a better bet on the numbers alone — familiarity and playstyle still matter.
Where it holds · Black score by rating × clock
Green is clearly ahead for Black, grey is around even, red is behind. Tap a cell to measure there, and again to clear. It falls away as the rating rises: 57.7% at 0-999, 45.5% at 2500+.
| Rating | UB | Bulle | Blitz | Rapid | Class |
|---|---|---|---|---|---|
| 0-999 | |||||
| 1000-1199 | |||||
| 1200-1399 | |||||
| 1400-1599 | |||||
| 1600-1799 | |||||
| 1800-1999 | |||||
| 2000-2199 | |||||
| 2200-2499 | |||||
| 2500+ |
Expected score matrix by rating bracket and time control
- 0-999 rating, UltraBullet: 48.2% expected score (25 games)
- 0-999 rating, Bullet: 52.3% expected score (4,567 games)
- 0-999 rating, Blitz: 50.7% expected score (5,330 games)
- 0-999 rating, Rapid: 54.0% expected score (1,106 games)
- 0-999 rating, Classical: 83.4% expected score (3 games)
- 1000-1199 rating, UltraBullet: 52.4% expected score (62 games)
- 1000-1199 rating, Bullet: 49.4% expected score (19,285 games)
- 1000-1199 rating, Blitz: 49.7% expected score (19,881 games)
- 1000-1199 rating, Rapid: 51.2% expected score (4,398 games)
- 1000-1199 rating, Classical: 58.1% expected score (42 games)
- 1200-1399 rating, UltraBullet: 49.6% expected score (240 games)
- 1200-1399 rating, Bullet: 49.5% expected score (47,915 games)
- 1200-1399 rating, Blitz: 50.1% expected score (53,941 games)
- 1200-1399 rating, Rapid: 50.8% expected score (12,732 games)
- 1200-1399 rating, Classical: 55.6% expected score (268 games)
- 1400-1599 rating, UltraBullet: 52.8% expected score (654 games)
- 1400-1599 rating, Bullet: 50.4% expected score (98,776 games)
- 1400-1599 rating, Blitz: 50.7% expected score (135,331 games)
- 1400-1599 rating, Rapid: 50.7% expected score (30,836 games)
- 1400-1599 rating, Classical: 53.9% expected score (1,217 games)
- 1600-1799 rating, UltraBullet: 50.4% expected score (956 games)
- 1600-1799 rating, Bullet: 50.2% expected score (172,066 games)
- 1600-1799 rating, Blitz: 51.0% expected score (299,779 games)
- 1600-1799 rating, Rapid: 51.2% expected score (61,716 games)
- 1600-1799 rating, Classical: 54.0% expected score (3,547 games)
- 1800-1999 rating, UltraBullet: 46.8% expected score (710 games)
- 1800-1999 rating, Bullet: 50.7% expected score (247,177 games)
- 1800-1999 rating, Blitz: 50.8% expected score (513,946 games)
- 1800-1999 rating, Rapid: 52.1% expected score (103,609 games)
- 1800-1999 rating, Classical: 53.2% expected score (5,995 games)
- 2000-2199 rating, UltraBullet: 45.8% expected score (274 games)
- 2000-2199 rating, Bullet: 50.1% expected score (278,386 games)
- 2000-2199 rating, Blitz: 49.6% expected score (500,545 games)
- 2000-2199 rating, Rapid: 50.5% expected score (89,572 games)
- 2000-2199 rating, Classical: 48.8% expected score (3,178 games)
- 2200-2499 rating, UltraBullet: 49.2% expected score (60 games)
- 2200-2499 rating, Bullet: 49.2% expected score (262,232 games)
- 2200-2499 rating, Blitz: 46.4% expected score (304,420 games)
- 2200-2499 rating, Rapid: 46.0% expected score (34,447 games)
- 2200-2499 rating, Classical: 41.8% expected score (713 games)
- 2500+ rating, UltraBullet: 43.3% expected score (6 games)
- 2500+ rating, Bullet: 46.4% expected score (89,388 games)
- 2500+ rating, Blitz: 43.1% expected score (38,163 games)
- 2500+ rating, Rapid: 44.5% expected score (2,567 games)
- 2500+ rating, Classical: 50.3% expected score (155 games)
48 variations · ranked by floor
Floor — the worst score you would still get, 90% confident.
Methodology
Across every rating and clock, the Grünfeld Defense family scores 49.8% for Black — we are 90% confident it is 49.8% — from 3.5M Lichess games across 48 variations. Win rate, draw rate and loss rate come from games played December 2023 to November 2025.
How the figures are made
- Whose games these are
- 3.5M+ rated games played on Lichess (2023-12 to 2025-11). The games are Lichess’s and free for anyone to use. What is ours is the reading of them. Last rebuilt January 2026.
- Which games we count
- Rated games only — nothing casual.
- Both players within 200 rating points of each other. A mismatch tells you about the gap, not about the opening.
- At least 2 moves played.
- A game is filed under White’s rating.
- Why every number comes with a range
- A number off a few hundred games is a guess. The same number off millions is a fact. The range is what tells them apart, and it is what the lists rank on — so an opening cannot reach the top on a lucky run of forty games. The more games behind a figure, the narrower its range.
- How much we need before we say anything
- An opening page needs 100 games. A gambit needs 50 games at a rating before we will say whether it pays there. The chaos and trap lists need 500 games overall and 250 games at one rating or clock.
Frequently Asked Questions
What is the Grünfeld Defense win rate?
Across the Grünfeld Defense's 48 variations, Black wins 46.9%, draws 5.7% and loses 47.4%. Counting a draw as half a point, that is an Expected Score of 49.8%. It rests on 3.5M rated games from Lichess.
How many Grünfeld Defense variations are there?
48 Grünfeld Defense variations have a page of their own, each broken down by rating and by clock.
At what rating does the Grünfeld Defense perform best?
The Grünfeld Defense family performs best for Black at 0-999, with an Expected Score of 51.7% (11K games) and the highest Floor of any rating with enough games to read. Performance may vary by specific variation.
Is the Grünfeld Defense better in blitz or rapid?
For Black, the Grünfeld Defense scores higher in Rapid: an Expected Score of 49.6% in Blitz (1.9M games) against 50.6% in Rapid (341K games).
How sharp is the Grünfeld Defense?
Grünfeld Defense games are 94.3% decisive (non-draws), with an average length of 36 moves. Sharpness varies by specific variation.
Is the Grünfeld Defense a good opening family?
The Grünfeld Defense family is about level overall. Across its games, Black wins 46.9% and loses 47.4%. Results differ between its 48 variations, so open the one you play for its own figures.