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Login: | Explaining level changesPremier B: Avon West / Centre For Sport - K1 v Westbury David Lloyd A (Wed 08 May 2024)Match played between Mateusz Marcinkowski (home) and Tom Elgood (away).Match won by Mateusz Marcinkowski. Result: 11-8,11-9,11-0:5-11,8-11,11-9,11-8,8-11:11-8,5-11,12-14,11-8,11-9:3-11,11-9,8-11,4-11:11-6,2-11,9-11,12-10,7-11. Starting level for Mateusz Marcinkowski: 9,625, level confidence: 58%. Starting level for Tom Elgood: 7,217, level confidence: 73%. Set manually. Mateusz Marcinkowski to win as he is currently playing 33% better than Tom Elgood. Mateusz Marcinkowski won all of the games and 66% of the points. This games result would be expected if he was better by around 55% or more. This points result would be expected if he was better by around 94% (PAR scoring). These are weighted and combined to calculate that Mateusz Marcinkowski played 94% better than Tom Elgood in this match. Assuming that any level changes are shared between both players, for this result it looks like Mateusz Marcinkowski actually played at a level of 11,612 and Tom Elgood at a level of 5,982. Without any damping, both players would need to be adjusted by 21% to match this result. Allowing for the difference in level between the players, the adjustments have been reduced to 18% and 18% respectively. Factoring in the relative levels of confidence which allows players with low confidence in their levels to change more quickly, the adjustment for Mateusz Marcinkowski changes to +18% and Tom Elgood changes to -13%. After applying standard match damping, the adjustment for Mateusz Marcinkowski becomes +5% and for Tom Elgood becomes -4.3%. Given Mateusz Marcinkowski's level and the type of match played, an additional damping of 16% has been applied to his level change. Given Tom Elgood's level and the type of match played, an additional damping of 8.6% has been applied to his level change. Apply match/event weighting of 75% for 'Mixed Spring 2023/2024' so the adjustment for Mateusz Marcinkowski is +3.2% and for Tom Elgood is -2.9%. Increase level confidence due to one more match played. Mateusz Marcinkowski: 76%, Tom Elgood: 85%. Reduce level confidence based on how unexpected the result is. Mateusz Marcinkowski: 63%, Tom Elgood: 71%. A final adjustment of -0.1% 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 Mateusz Marcinkowski: 9,919, level confidence: 63%. Final level for Tom Elgood: 7,001, level confidence: 71%. Notes
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