Ma Yu
MaYu93
Beijing Tongzhou TT Club
π δΈ°ε°εΊ
π¨π³ CN
1329
Rating
Bayesian conservative rating = ΞΌ β 2Ο. The system is 95% confident this player's skill is at least this value. More matches lower Ο and raise this number.
1483
ΞΌ (mean)
ΞΌ (Mu) is the best estimate of this player's skill level. Wins raise it, losses lower it. Beating a stronger player earns more than beating a weaker one.
76.8
Ο (uncertainty)
Ο (Sigma) = how confident the system is in the rating. Lower is better. New players start at Ο=200 β it falls with every match played.
36%
Win Rate
Wins Γ· (wins + losses). Requires at least 1 match.
4
Wins
7
Losses
Skill Confidence Intervals
Based on ΞΌ and Ο, the system estimates this player's skill range at different confidence levels. The smaller Ο is, the narrower the band.
68% (1Ο)1406 β 1560
95% (2Ο)1329 β 1637
99.7% (3Ο)1253 β 1713
Trust Level
How reliably this player submits match results. Formula: rejections per 10 submissions. Fewer rejections = higher trust.
No data
No submissions yet
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Login / RegisterRecent Matches
| Date | Player A | Player B | ΞΞΌ Change in ΞΌ after this match. Positive = won. The size depends on the skill gap between both players and their Ο values. | ||
|---|---|---|---|---|---|
| 5/21/2026 |  |
π SunXin92 | |
MaYu93 | -6.0 |
| 5/17/2026 |  |
XuHui91 | |
π MaYu93 | +16.0 |
| 5/9/2026 | |
MaYu93 |  |
π ZhuMei94 | -3.0 |
| 3/31/2026 |  |
LuoTing99 | |
π MaYu93 | +34.0 |
| 3/7/2026 |  |
π ShiChao112 | |
MaYu93 | -27.0 |
| 2/2/2026 | |
π MaYu93 |  |
GuoQian96 | +16.0 |
| 1/29/2026 |  |
π SongXue100 | |
MaYu93 | -27.0 |
| 1/26/2026 |  |
π WangTao137 | |
MaYu93 | -13.0 |
| 1/7/2026 | |
π MaYu93 |  |
ZhaoGang27 | +65.0 |
| 12/21/2025 | |
MaYu93 |  |
π LinYue97 | -42.0 |