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Login: | Explaining level changesPremier B: Westbury David Lloyd A v Lansdown 2 (Wed 03 Apr 2024)Match played between Tom Elgood (home) and Jake Vickery (away).Match won by Tom Elgood. Result: 11-5,11-9,7-11,12-10:6-11,11-5,14-12,11-8:11-8,12-10,11-9:11-6,11-9,11-5:4-11,11-6,11-3,9-11,11-3. Starting level for Tom Elgood: 6,966, level confidence: 59%. Starting level for Jake Vickery: 4,006, level confidence: 49%. Tom Elgood to win as he is currently playing 74% better than Jake Vickery. Tom Elgood won 75% of the games and 54% of the points. This games result would be expected if he was better by around 25%. This points result would be expected if he was better by around 17% (PAR scoring). These are weighted and combined to calculate that Tom Elgood played 22% better than Jake Vickery in this match. As Tom Elgood has played below his allowed range at 5,306, his level reduction is 8.2% before damping. On the assumption that Tom Elgood would normally have been playing at level 6,393 (based on typical behaviour), Jake Vickery played better than expected and therefore gains a pre-damping level increase of 14%. Allowing for the difference in level between the players, the adjustments have been reduced to 6.1% and 10.6% respectively. Factoring in the relative levels of confidence which allows players with low confidence in their levels to change more quickly, the adjustment for Tom Elgood changes to -5.1% and Jake Vickery changes to +10.6%. After applying standard match damping, the adjustment for Tom Elgood becomes -2.2% and for Jake Vickery becomes +4.1%. Given Tom Elgood's level and the type of match played, an additional damping of 7.7% has been applied to his level change. Apply match/event weighting of 75% for 'Mixed Spring 2023/2024' so the adjustment for Tom Elgood is -1.5% and for Jake Vickery is +3.1%. Increase level confidence due to one more match played. Tom Elgood: 77%, Jake Vickery: 70%. Reduce level confidence based on how unexpected the result is. Tom Elgood: 64%, Jake Vickery: 59%. A final adjustment of -0.2% has been made to both players as part of the automatic calibration that is performed after each match. All players in this pool will have been adjusted equally in order to remain equivalent to other player pools. Final level for Tom Elgood: 6,851, level confidence: 64%. Final level for Jake Vickery: 4,124, level confidence: 59%. Notes
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