Zhao Juan
ZhaoJuan87
Beijing Haidian TT Club
π δΈεεΊ
π¨π³ CN
1561
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.
1623
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.
31.2
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.
46%
Win Rate
Wins Γ· (wins + losses). Requires at least 1 match.
6
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)1592 β 1654
95% (2Ο)1561 β 1685
99.7% (3Ο)1529 β 1717
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. | ||
|---|---|---|---|---|---|
| 5/30/2026 | ChenGang135 | π ZhaoJuan87 | +9.0 | ||
| 5/30/2026 | π ChenMing5 | ZhaoJuan87 | +3.0 | ||
| 5/30/2026 | π ChenLi65 | ZhaoJuan87 | +104.0 | ||
| 5/19/2026 | YangYan86 | π ZhaoJuan87 | +8.0 | ||
| 5/18/2026 | ChenLi85 | π ZhaoJuan87 | +8.0 | ||
| 5/14/2026 | ZhaoJuan87 | π WangFang81 | -10.0 | ||
| 5/13/2026 | π LiuJing84 | ZhaoJuan87 | -7.0 | ||
| 4/30/2026 | ZhaoJuan87 | π WuYan290 | -7.0 | ||
| 4/29/2026 | ZhangMin83 | π ZhaoJuan87 | +13.0 | ||
| 4/14/2026 | π ChenMing45 | ZhaoJuan87 | -23.0 |