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King's Gambit Accepted: Mason-Keres Gambit

44K games from Lichess · Updated January 2026

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White Expected Score52.9%Range (90% confident): 52.6% – 53.3%Based on 44K games
0%52.9%100%
Range (90% confident): 52.6% – 53.3%
Outcome Distribution
51.3%3.1%45.5%
Win
Draw
Loss
3.Nc3
King's Gambit Accepted: Mason-Keres Gambit
Analyzen=44K
Avg Length30 moves
Sharpness97%
Draw Rate3.1%

What is the King's Gambit Accepted: Mason-Keres Gambit expected score for White?

Snapshot

At all ratings, the King's Gambit Accepted: Mason-Keres Gambit has a 52.9% expected score for White (we're 90% confident it's between 52.6% and 53.3%), based on 44K Lichess games.

Extra Analysis

Deep-dive datasets for this opening

Gambit BreakpointWhite

Peak: +11.6% · Breakpoint: 0-999

Time-Control Swing

Max swing: 10.5% · Bullet best · Classical worst

White Win% by Rating

Improves with rating: 48% → 52%

0
1000
1200
1400
1600
1800
2000
2200
2500+

  • 0-999: 48.0% win rate (2,906 games)
  • 1000-1199: 49.5% win rate (4,446 games)
  • 1200-1399: 49.2% win rate (5,604 games)
  • 1400-1599: 50.2% win rate (6,506 games)
  • 1600-1799: 50.5% win rate (6,593 games)
  • 1800-1999: 52.4% win rate (6,597 games)
  • 2000-2199: 54.9% win rate (6,542 games)
  • 2200-2499: 54.1% win rate (3,917 games)
  • 2500+: 52.1% win rate (452 games)

White Win% by Time Control

Best in UltraBullet (58%), worst in Classical (42%)

UltraBullet
Bullet
Blitz
Rapid
Classical

  • UltraBullet: 57.9% win rate (65 games)
  • Bullet: 52.8% win rate (14,467 games)
  • Blitz: 51.4% win rate (23,008 games)
  • Rapid: 47.7% win rate (5,806 games)
  • Classical: 42.3% win rate (217 games)

White% by Rating × Time Control

Click any cell to filter. Green = above 50%, Red = below 50%.

RatingUBBulleBlitzRapidClass
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: 78.6% expected score (2 games)
  • 0-999 rating, Bullet: 50.8% expected score (666 games)
  • 0-999 rating, Blitz: 49.8% expected score (1,479 games)
  • 0-999 rating, Rapid: 49.0% expected score (752 games)
  • 0-999 rating, Classical: 55.9% expected score (7 games)
  • 1000-1199 rating, UltraBullet: 50.0% expected score (10 games)
  • 1000-1199 rating, Bullet: 53.7% expected score (1,285 games)
  • 1000-1199 rating, Blitz: 49.9% expected score (2,184 games)
  • 1000-1199 rating, Rapid: 49.3% expected score (953 games)
  • 1000-1199 rating, Classical: 69.4% expected score (14 games)
  • 1200-1399 rating, UltraBullet: 73.1% expected score (5 games)
  • 1200-1399 rating, Bullet: 55.0% expected score (1,685 games)
  • 1200-1399 rating, Blitz: 49.2% expected score (2,765 games)
  • 1200-1399 rating, Rapid: 46.9% expected score (1,096 games)
  • 1200-1399 rating, Classical: 52.8% expected score (53 games)
  • 1400-1599 rating, UltraBullet: 57.9% expected score (24 games)
  • 1400-1599 rating, Bullet: 53.2% expected score (2,024 games)
  • 1400-1599 rating, Blitz: 51.8% expected score (3,383 games)
  • 1400-1599 rating, Rapid: 48.2% expected score (1,008 games)
  • 1400-1599 rating, Classical: 39.1% expected score (67 games)
  • 1600-1799 rating, UltraBullet: 72.3% expected score (12 games)
  • 1600-1799 rating, Bullet: 53.3% expected score (2,469 games)
  • 1600-1799 rating, Blitz: 51.3% expected score (3,173 games)
  • 1600-1799 rating, Rapid: 50.0% expected score (907 games)
  • 1600-1799 rating, Classical: 41.1% expected score (32 games)
  • 1800-1999 rating, UltraBullet: 38.9% expected score (12 games)
  • 1800-1999 rating, Bullet: 54.9% expected score (2,715 games)
  • 1800-1999 rating, Blitz: 53.8% expected score (3,305 games)
  • 1800-1999 rating, Rapid: 50.7% expected score (538 games)
  • 1800-1999 rating, Classical: 32.5% expected score (27 games)
  • 2000-2199 rating, Bullet: 55.3% expected score (2,286 games)
  • 2000-2199 rating, Blitz: 57.9% expected score (3,827 games)
  • 2000-2199 rating, Rapid: 55.8% expected score (413 games)
  • 2000-2199 rating, Classical: 47.2% expected score (16 games)
  • 2200-2499 rating, Bullet: 52.9% expected score (1,154 games)
  • 2200-2499 rating, Blitz: 57.9% expected score (2,634 games)
  • 2200-2499 rating, Rapid: 58.5% expected score (128 games)
  • 2200-2499 rating, Classical: 70.0% expected score (1 games)
  • 2500+ rating, Bullet: 51.9% expected score (183 games)
  • 2500+ rating, Blitz: 59.5% expected score (258 games)
  • 2500+ rating, Rapid: 46.0% expected score (11 games)

Related Openings

Parent
King's Gambit Accepted
43.1%
Variations (5)
King's Gambit Accepted: Abbazia Defense
46.9%
King's Gambit Accepted: Allgaier Gambit
55.5%
King's Gambit Accepted: Allgaier Gambit, Thorold Attack
59.1%
King's Gambit Accepted: Allgaier Gambit, Urusov Attack
55.2%
King's Gambit Accepted: Allgaier, Blackburne Gambit
57.5%
Analyze King's Gambit Accepted: Mason-Keres Gambit PositionsGet move-by-move win rates with the TrueElo analyzer

Frequently Asked Questions

What is the King's Gambit Accepted: Mason-Keres Gambit win rate?

The King's Gambit Accepted: Mason-Keres Gambit has a 51.3% (90% CI: 51.0%-51.7%) win rate for white, based on 44K rated games from Lichess.

At what rating does the King's Gambit Accepted: Mason-Keres Gambit perform best?

The King's Gambit Accepted: Mason-Keres Gambit performs best at 2000-2199 Elo with a 54.9% win rate for white (6.5K games). Win rate tends to decline at higher ratings as opponents know the theory better.

Is the King's Gambit Accepted: Mason-Keres Gambit better in blitz or rapid?

Bullet (52.8%) outperforms Classical (42.3%) by 10.5%. Choose your time control wisely.

How sharp is the King's Gambit Accepted: Mason-Keres Gambit?

The King's Gambit Accepted: Mason-Keres Gambit has a sharpness score of 96.9 (very decisive), meaning 96.9% of games end decisively. Average game length is 30 moves.

What is the King's Gambit Accepted: Mason-Keres Gambit win rate at 0-999 Elo?

At 0-999 Elo, the King's Gambit Accepted: Mason-Keres Gambit has a 48.0% (90% CI: 46.5%-49.6%) win rate for white, based on 2.9K Lichess games. Average game length is 25 moves with a 3.6% draw rate.

What is the King's Gambit Accepted: Mason-Keres Gambit win rate at 1000-1199 Elo?

At 1000-1199 Elo, the King's Gambit Accepted: Mason-Keres Gambit has a 49.5% (90% CI: 48.3%-50.8%) win rate for white, based on 4.4K Lichess games. Average game length is 27 moves with a 2.7% draw rate.

What is the King's Gambit Accepted: Mason-Keres Gambit win rate at 1200-1399 Elo?

At 1200-1399 Elo, the King's Gambit Accepted: Mason-Keres Gambit has a 49.2% (90% CI: 48.1%-50.3%) win rate for white, based on 5.6K Lichess games. Average game length is 28 moves with a 2.6% draw rate.

What is the King's Gambit Accepted: Mason-Keres Gambit win rate at 1400-1599 Elo?

At 1400-1599 Elo, the King's Gambit Accepted: Mason-Keres Gambit has a 50.2% (90% CI: 49.2%-51.2%) win rate for white, based on 6.5K Lichess games. Average game length is 29 moves with a 2.6% draw rate.

What is the King's Gambit Accepted: Mason-Keres Gambit win rate at 1600-1799 Elo?

At 1600-1799 Elo, the King's Gambit Accepted: Mason-Keres Gambit has a 50.5% (90% CI: 49.5%-51.6%) win rate for white, based on 6.6K Lichess games. Average game length is 31 moves with a 2.5% draw rate.

What is the King's Gambit Accepted: Mason-Keres Gambit win rate at 1800-1999 Elo?

At 1800-1999 Elo, the King's Gambit Accepted: Mason-Keres Gambit has a 52.4% (90% CI: 51.4%-53.4%) win rate for white, based on 6.6K Lichess games. Average game length is 31 moves with a 2.8% draw rate.

What is the King's Gambit Accepted: Mason-Keres Gambit win rate at 2000-2199 Elo?

At 2000-2199 Elo, the King's Gambit Accepted: Mason-Keres Gambit has a 54.9% (90% CI: 53.9%-55.9%) win rate for white, based on 6.5K Lichess games. Average game length is 31 moves with a 3.8% draw rate.

What is the King's Gambit Accepted: Mason-Keres Gambit win rate at 2200-2499 Elo?

At 2200-2499 Elo, the King's Gambit Accepted: Mason-Keres Gambit has a 54.1% (90% CI: 52.8%-55.4%) win rate for white, based on 3.9K Lichess games. Average game length is 32 moves with a 4.6% draw rate.

What is the King's Gambit Accepted: Mason-Keres Gambit win rate at 2500+ Elo?

At 2500+ Elo, the King's Gambit Accepted: Mason-Keres Gambit has a 52.1% (90% CI: 48.3%-56.0%) win rate for white, based on 452 Lichess games. Average game length is 35 moves with a 7.8% draw rate.

What is the King's Gambit Accepted: Mason-Keres Gambit win rate in Bullet?

In Bullet games, the King's Gambit Accepted: Mason-Keres Gambit has a 52.8% (90% CI: 52.2%-53.5%) win rate for white (14K Lichess games). Draw rate is 2.2%.

What is the King's Gambit Accepted: Mason-Keres Gambit win rate in Blitz?

In Blitz games, the King's Gambit Accepted: Mason-Keres Gambit has a 51.4% (90% CI: 50.9%-51.9%) win rate for white (23K Lichess games). Draw rate is 3.5%.

What is the King's Gambit Accepted: Mason-Keres Gambit win rate in Rapid?

In Rapid games, the King's Gambit Accepted: Mason-Keres Gambit has a 47.7% (90% CI: 46.6%-48.7%) win rate for white (5.8K Lichess games). Draw rate is 3.6%.

What is the King's Gambit Accepted: Mason-Keres Gambit win rate in Classical?

In Classical games, the King's Gambit Accepted: Mason-Keres Gambit has a 42.3% (90% CI: 36.9%-47.9%) win rate for white (217 Lichess games). Draw rate is 5.7%.

Is the King's Gambit Accepted: Mason-Keres Gambit a good opening?

The King's Gambit Accepted: Mason-Keres Gambit is statistically favors white with a 51.3% (90% CI: 51.0%-51.7%) win rate across all ratings. It performs best at 2000-2199 Elo. Your results depend on your rating, time control, and how well you know the typical plans.