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Login: | Explaining level changesPremier A: University of Bristol Ballers v Workout Harbourside 1 (Thu 10 Feb 2022)Match played between Fin 'Huggies' McManus (home) and Oli Harding (away).Match won by Oli Harding. Result: 8-11,5-11,7-11. Starting level for Fin 'Huggies' McManus: 4,489, level confidence: 55%. Starting level for Oli Harding: 7,155, level confidence: 77%. Set manually. Oli Harding to win as he is currently playing 59% better than Fin 'Huggies' McManus. Oli Harding won all of the games and 62% 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 65% (PAR scoring). These are weighted and combined to calculate that Oli Harding played 65% better than Fin 'Huggies' McManus in this match. Assuming that any level changes are shared between both players, for this result it looks like Oli Harding actually played at a level of 7,280 and Fin 'Huggies' McManus at a level of 4,412. Without any damping, both players would need to be adjusted by 1.7% to match this result. Allowing for the difference in level between the players, the adjustments have been reduced to 1.4% and 1.4% respectively. Factoring in the relative levels of confidence which allows players with low confidence in their levels to change more quickly, the adjustment for Oli Harding changes to +1% and Fin 'Huggies' McManus changes to -1.4%. After applying standard match damping, the adjustment for Oli Harding becomes +0.5% and for Fin 'Huggies' McManus becomes -0.8%. Given Oli Harding's level and the type of match played, an additional damping of 8.4% has been applied to his level change. Apply match/event weighting of 75% for 'Mixed Spring 2021/2022' so the adjustment for Oli Harding is +0.4% and for Fin 'Huggies' McManus is -0.6%. Increase level confidence due to one more match played. Oli Harding: 88%, Fin 'Huggies' McManus: 74%. Reduce level confidence based on how unexpected the result is. Oli Harding: 86%, Fin 'Huggies' McManus: 73%. A final adjustment of -2.5% 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 Fin 'Huggies' McManus: 4,269, level confidence: 73%. Final level for Oli Harding: 7,144, level confidence: 86%. Notes
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