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Cai Jun
Cai Jun
CaiJun101
Beijing Xicheng TT Club πŸ“ θ₯ΏεŸŽεŒΊ πŸ‡¨πŸ‡³ CN
1429
Rating iBayesian conservative rating = ΞΌ βˆ’ 2Οƒ. The system is 95% confident this player's skill is at least this value. More matches lower Οƒ and raise this number.
1551
ΞΌ (mean) iΞΌ (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.
61.2
σ (uncertainty) iσ (Sigma) = how confident the system is in the rating. Lower is better. New players start at σ=200 — it falls with every match played.
100%
Win Rate iWins Γ· (wins + losses). Requires at least 1 match.
6
Wins
0
Losses
Skill Confidence Intervals iBased on ΞΌ and Οƒ, the system estimates this player's skill range at different confidence levels. The smaller Οƒ is, the narrower the band.
68%  (1Οƒ)1490 β€” 1612
95%  (2Οƒ)1429 β€” 1673
99.7% (3Οƒ)1367 β€” 1735
Trust Level iHow reliably this player submits match results. Formula: rejections per 10 submissions. Fewer rejections = higher trust. No data
No submissions yet

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Recent Matches

Date Player A Player B Δμ iChange in ΞΌ after this match. Positive = won. The size depends on the skill gap between both players and their Οƒ values.
5/12/2026 πŸ† CaiJun101 SunFei12 -8.0
3/22/2026 KongPeng106 πŸ† CaiJun101 -16.0
3/3/2026 πŸ† CaiJun101 NiuWei103 β€”
2/19/2026 πŸ† CaiJun101 SunFei52 +18.0
1/24/2026 πŸ† CaiJun101 TangFang102 -22.0
12/29/2025 πŸ† CaiJun101 ShiMing104 +71.0