Zhang Min
ZhangMin63
Beijing Tongzhou TT Club
π δΈ°ε°εΊ
π¨π³ CN
1458
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.
1579
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.
60.5
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.
67%
Win Rate
Wins Γ· (wins + losses). Requires at least 1 match.
6
Wins
3
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)1519 β 1640
95% (2Ο)1458 β 1700
99.7% (3Ο)1398 β 1761
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. | ||
|---|---|---|---|---|---|
| 5/17/2026 | |
ZhangMin63 |  |
π YangYan66 | -17.0 |
| 5/5/2026 |  |
LiNa62 | |
π ZhangMin63 | β |
| 4/18/2026 | |
ZhangMin63 |  |
π LiuJing64 | -20.0 |
| 3/24/2026 |  |
π WangFang61 | |
ZhangMin63 | -28.0 |
| 3/14/2026 |  |
LuDan121 | |
π ZhangMin63 | +25.0 |
| 2/18/2026 |  |
ZhouLing69 | |
π ZhangMin63 | -46.0 |
| 2/9/2026 | |
π ZhangMin63 |  |
ZhaoJuan67 | -3.0 |
| 2/4/2026 | |
π ZhangMin63 |  |
ChenLi65 | -2.0 |
| 1/2/2026 |  |
WuYan270 | |
π ZhangMin63 | +105.0 |