Zhu Kai
ZhuKai14
Beijing Haidian TT Club
π θ₯ΏεεΊ
π¨π³ CN
1223
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.
1368
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.
72.5
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.
25%
Win Rate
Wins Γ· (wins + losses). Requires at least 1 match.
2
Wins
6
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)1296 β 1441
95% (2Ο)1223 β 1513
99.7% (3Ο)1151 β 1586
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. | ||
|---|---|---|---|---|---|
| 5/26/2026 | ZhuKai14 | π GuoRui16 | -6.0 | ||
| 5/4/2026 | MaDong13 | π ZhuKai14 | +36.0 | ||
| 3/6/2026 | π SunFei12 | ZhuKai14 | +2.0 | ||
| 2/24/2026 | XuBo11 | π ZhuKai14 | +49.0 | ||
| 2/7/2026 | π SongQiang20 | ZhuKai14 | -10.0 | ||
| 1/10/2026 | ZhuKai14 | π GaoYong18 | +13.0 | ||
| 12/28/2025 | ZhuKai14 | π HuZhi15 | -30.0 | ||
| 12/27/2025 | ZhuKai14 | π LinLong17 | -105.0 |