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Sun Fei
Sun Fei
SunFei52
Beijing Haidian TT Club πŸ“ 东城区 πŸ‡¨πŸ‡³ CN
1403
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.
1524
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.
60.6
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.
62%
Win Rate iWins Γ· (wins + losses). Requires at least 1 match.
8
Wins
5
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)1463 β€” 1585
95%  (2Οƒ)1403 β€” 1645
99.7% (3Οƒ)1342 β€” 1706
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.
5/30/2026 πŸ† SunFei52 WuYan290 -86.0
5/30/2026 πŸ† SunFei52 ZhangMin83 -108.0
5/30/2026 πŸ† SunFei52 SongQiang60 -135.0
5/30/2026 πŸ† SunFei52 LiuJing84 -176.0
5/25/2026 XuBo51 πŸ† SunFei52 +8.0
4/26/2026 SunFei52 πŸ† MaDong53 -12.0
2/24/2026 LuoHui59 πŸ† SunFei52 -8.0
2/20/2026 πŸ† SongQiang60 SunFei52 -12.0
2/19/2026 πŸ† CaiJun101 SunFei52 -13.0
2/15/2026 SunFei52 πŸ† HuZhi55 -51.0