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Latvian Gambit: Mason Countergambit

239K games from Lichess · Updated January 2026

Playable
White Expected Score50.8%Range (90% confident): 50.6% – 51.0%Based on 239K games
0%50.8%100%
Range (90% confident): 50.6% – 51.0%
Outcome Distribution
49.4%2.8%47.8%
Win
Draw
Loss
3.d4
Latvian Gambit: Mason Countergambit
Analyzen=239K
Avg Length29 moves
Sharpness97%
Draw Rate2.8%

What is the Latvian Gambit: Mason Countergambit expected score for White?

Snapshot

At all ratings, the Latvian Gambit: Mason Countergambit has a 50.8% expected score for White (we're 90% confident it's between 50.6% and 51.0%), based on 239K Lichess games.

Extra Analysis

Deep-dive datasets for this opening

Gambit BreakpointWhite

Peak: +9.9% · Breakpoint: 1800-1999

Time-Control Swing

Max swing: 8.0% · UltraBullet best · Bullet worst

White Win% by Rating

Declines with rating: 53% → 46%

0
1000
1200
1400
1600
1800
2000
2200
2500+

  • 0-999: 53.4% win rate (6,301 games)
  • 1000-1199: 54.8% win rate (10,475 games)
  • 1200-1399: 52.8% win rate (18,678 games)
  • 1400-1599: 51.9% win rate (30,300 games)
  • 1600-1799: 49.4% win rate (44,867 games)
  • 1800-1999: 48.2% win rate (57,849 games)
  • 2000-2199: 47.5% win rate (44,524 games)
  • 2200-2499: 47.3% win rate (22,707 games)
  • 2500+: 46.1% win rate (2,815 games)

White Win% by Time Control

Best in UltraBullet (57%), worst in Bullet (49%)

UltraBullet
Bullet
Blitz
Rapid
Classical

  • UltraBullet: 56.5% win rate (1,464 games)
  • Bullet: 48.5% win rate (121,837 games)
  • Blitz: 49.8% win rate (97,601 games)
  • Rapid: 52.8% win rate (16,976 games)
  • Classical: 53.9% win rate (638 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: 56.7% expected score (21 games)
  • 0-999 rating, Bullet: 54.8% expected score (2,231 games)
  • 0-999 rating, Blitz: 53.9% expected score (2,796 games)
  • 0-999 rating, Rapid: 56.7% expected score (1,241 games)
  • 0-999 rating, Classical: 31.5% expected score (12 games)
  • 1000-1199 rating, UltraBullet: 59.4% expected score (57 games)
  • 1000-1199 rating, Bullet: 55.1% expected score (4,571 games)
  • 1000-1199 rating, Blitz: 55.6% expected score (4,253 games)
  • 1000-1199 rating, Rapid: 58.0% expected score (1,567 games)
  • 1000-1199 rating, Classical: 48.3% expected score (27 games)
  • 1200-1399 rating, UltraBullet: 56.8% expected score (139 games)
  • 1200-1399 rating, Bullet: 51.6% expected score (8,980 games)
  • 1200-1399 rating, Blitz: 55.5% expected score (7,307 games)
  • 1200-1399 rating, Rapid: 56.5% expected score (2,207 games)
  • 1200-1399 rating, Classical: 45.7% expected score (45 games)
  • 1400-1599 rating, UltraBullet: 54.5% expected score (538 games)
  • 1400-1599 rating, Bullet: 50.7% expected score (14,290 games)
  • 1400-1599 rating, Blitz: 54.4% expected score (12,671 games)
  • 1400-1599 rating, Rapid: 56.4% expected score (2,679 games)
  • 1400-1599 rating, Classical: 58.1% expected score (122 games)
  • 1600-1799 rating, UltraBullet: 60.7% expected score (410 games)
  • 1600-1799 rating, Bullet: 48.8% expected score (21,253 games)
  • 1600-1799 rating, Blitz: 51.7% expected score (20,123 games)
  • 1600-1799 rating, Rapid: 53.4% expected score (2,910 games)
  • 1600-1799 rating, Classical: 59.0% expected score (171 games)
  • 1800-1999 rating, UltraBullet: 62.0% expected score (128 games)
  • 1800-1999 rating, Bullet: 49.2% expected score (28,447 games)
  • 1800-1999 rating, Blitz: 49.7% expected score (25,532 games)
  • 1800-1999 rating, Rapid: 51.9% expected score (3,538 games)
  • 1800-1999 rating, Classical: 55.4% expected score (204 games)
  • 2000-2199 rating, UltraBullet: 47.3% expected score (89 games)
  • 2000-2199 rating, Bullet: 48.5% expected score (23,645 games)
  • 2000-2199 rating, Blitz: 49.7% expected score (18,419 games)
  • 2000-2199 rating, Rapid: 52.4% expected score (2,320 games)
  • 2000-2199 rating, Classical: 62.4% expected score (51 games)
  • 2200-2499 rating, UltraBullet: 53.1% expected score (79 games)
  • 2200-2499 rating, Bullet: 48.8% expected score (15,988 games)
  • 2200-2499 rating, Blitz: 50.3% expected score (6,125 games)
  • 2200-2499 rating, Rapid: 56.0% expected score (510 games)
  • 2200-2499 rating, Classical: 57.7% expected score (5 games)
  • 2500+ rating, UltraBullet: 61.2% expected score (3 games)
  • 2500+ rating, Bullet: 48.5% expected score (2,432 games)
  • 2500+ rating, Blitz: 50.0% expected score (375 games)
  • 2500+ rating, Rapid: 68.2% expected score (4 games)
  • 2500+ rating, Classical: 30.0% expected score (1 games)

Related Openings

Parent
Latvian Gambit
49.8%
Variations (5)
Latvian Gambit: Behting Variation
30.8%
Latvian Gambit: Clam Gambit
44.6%
Latvian Gambit: Corkscrew Countergambit
55.7%
Latvian Gambit: Corkscrew Gambit
37.7%
Latvian Gambit: Diepstraten Countergambit
45.4%
Analyze Latvian Gambit: Mason Countergambit PositionsGet move-by-move win rates with the TrueElo analyzer

Frequently Asked Questions

What is the Latvian Gambit: Mason Countergambit win rate?

The Latvian Gambit: Mason Countergambit has a 49.4% (90% CI: 49.2%-49.6%) win rate for white, based on 239K rated games from Lichess.

At what rating does the Latvian Gambit: Mason Countergambit perform best?

The Latvian Gambit: Mason Countergambit performs best at 1000-1199 Elo with a 54.8% win rate for white (10K games). Win rate tends to decline at higher ratings as opponents know the theory better.

Is the Latvian Gambit: Mason Countergambit better in blitz or rapid?

UltraBullet (56.5%) outperforms Bullet (48.5%) by 8.0%. Choose your time control wisely.

How sharp is the Latvian Gambit: Mason Countergambit?

The Latvian Gambit: Mason Countergambit has a sharpness score of 97.2 (very decisive), meaning 97.2% of games end decisively. Average game length is 29 moves.

What is the Latvian Gambit: Mason Countergambit win rate at 0-999 Elo?

At 0-999 Elo, the Latvian Gambit: Mason Countergambit has a 53.4% (90% CI: 52.4%-54.5%) win rate for white, based on 6.3K Lichess games. Average game length is 23 moves with a 2.6% draw rate.

What is the Latvian Gambit: Mason Countergambit win rate at 1000-1199 Elo?

At 1000-1199 Elo, the Latvian Gambit: Mason Countergambit has a 54.8% (90% CI: 54.0%-55.6%) win rate for white, based on 10K Lichess games. Average game length is 24 moves with a 1.8% draw rate.

What is the Latvian Gambit: Mason Countergambit win rate at 1200-1399 Elo?

At 1200-1399 Elo, the Latvian Gambit: Mason Countergambit has a 52.8% (90% CI: 52.2%-53.4%) win rate for white, based on 19K Lichess games. Average game length is 26 moves with a 1.8% draw rate.

What is the Latvian Gambit: Mason Countergambit win rate at 1400-1599 Elo?

At 1400-1599 Elo, the Latvian Gambit: Mason Countergambit has a 51.9% (90% CI: 51.4%-52.3%) win rate for white, based on 30K Lichess games. Average game length is 26 moves with a 1.9% draw rate.

What is the Latvian Gambit: Mason Countergambit win rate at 1600-1799 Elo?

At 1600-1799 Elo, the Latvian Gambit: Mason Countergambit has a 49.4% (90% CI: 49.0%-49.8%) win rate for white, based on 45K Lichess games. Average game length is 28 moves with a 2.4% draw rate.

What is the Latvian Gambit: Mason Countergambit win rate at 1800-1999 Elo?

At 1800-1999 Elo, the Latvian Gambit: Mason Countergambit has a 48.2% (90% CI: 47.8%-48.5%) win rate for white, based on 58K Lichess games. Average game length is 30 moves with a 2.9% draw rate.

What is the Latvian Gambit: Mason Countergambit win rate at 2000-2199 Elo?

At 2000-2199 Elo, the Latvian Gambit: Mason Countergambit has a 47.5% (90% CI: 47.1%-47.9%) win rate for white, based on 45K Lichess games. Average game length is 32 moves with a 3.5% draw rate.

What is the Latvian Gambit: Mason Countergambit win rate at 2200-2499 Elo?

At 2200-2499 Elo, the Latvian Gambit: Mason Countergambit has a 47.3% (90% CI: 46.7%-47.8%) win rate for white, based on 23K Lichess games. Average game length is 34 moves with a 4.1% draw rate.

What is the Latvian Gambit: Mason Countergambit win rate at 2500+ Elo?

At 2500+ Elo, the Latvian Gambit: Mason Countergambit has a 46.1% (90% CI: 44.6%-47.7%) win rate for white, based on 2.8K Lichess games. Average game length is 36 moves with a 5.1% draw rate.

What is the Latvian Gambit: Mason Countergambit win rate in UltraBullet?

In UltraBullet games, the Latvian Gambit: Mason Countergambit has a 56.5% (90% CI: 54.3%-58.6%) win rate for white (1.5K Lichess games). Draw rate is 0.8%.

What is the Latvian Gambit: Mason Countergambit win rate in Bullet?

In Bullet games, the Latvian Gambit: Mason Countergambit has a 48.5% (90% CI: 48.3%-48.7%) win rate for white (122K Lichess games). Draw rate is 2.2%.

What is the Latvian Gambit: Mason Countergambit win rate in Blitz?

In Blitz games, the Latvian Gambit: Mason Countergambit has a 49.8% (90% CI: 49.6%-50.1%) win rate for white (98K Lichess games). Draw rate is 3.4%.

What is the Latvian Gambit: Mason Countergambit win rate in Rapid?

In Rapid games, the Latvian Gambit: Mason Countergambit has a 52.8% (90% CI: 52.2%-53.4%) win rate for white (17K Lichess games). Draw rate is 3.5%.

What is the Latvian Gambit: Mason Countergambit win rate in Classical?

In Classical games, the Latvian Gambit: Mason Countergambit has a 53.9% (90% CI: 50.6%-57.1%) win rate for white (638 Lichess games). Draw rate is 4.1%.

Is the Latvian Gambit: Mason Countergambit a good opening?

The Latvian Gambit: Mason Countergambit is statistically balanced with a 49.4% (90% CI: 49.2%-49.6%) win rate across all ratings. It performs best at 1000-1199 Elo. Your results depend on your rating, time control, and how well you know the typical plans.