Zhu Kai
ZhuKai34
Beijing Xicheng TT Club
π ζι³εΊ
π¨π³ CN
1398
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.
1520
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.
61.0
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.
55%
Win Rate
Wins Γ· (wins + losses). Requires at least 1 match.
6
Wins
5
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)1459 β 1581
95% (2Ο)1398 β 1642
99.7% (3Ο)1337 β 1703
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. | ||
|---|---|---|---|---|---|
| 5/24/2026 |  |
π SongQiang40 | |
ZhuKai34 | -10.0 |
| 5/8/2026 | |
ZhuKai34 |  |
π HuZhi35 | -12.0 |
| 5/2/2026 |  |
π MaDong33 | |
ZhuKai34 | -9.0 |
| 3/21/2026 | |
π ZhuKai34 |  |
GuoRui36 | -9.0 |
| 3/16/2026 |  |
XuBo31 | |
π ZhuKai34 | +16.0 |
| 1/15/2026 |  |
HuangXia88 | |
π ZhuKai34 | +25.0 |
| 1/3/2026 | |
π ZhuKai34 |  |
SongQiang20 | +1.0 |
| 1/1/2026 | |
ZhuKai34 |  |
π LinLong37 | -21.0 |
| 12/31/2025 |  |
π SunFei32 | |
ZhuKai34 | -83.0 |
| 12/18/2025 | |
π ZhuKai34 |  |
GaoYong38 | +71.0 |