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Login: | Explaining level changesNick 'Or Tin' Benson v David Evans (Fri 03 Mar 2023)Match won by Nick 'Or Tin' Benson. Result: 15-3,15-5,15-8.Starting level for Nick 'Or Tin' Benson: 4,609, level confidence: 72%. Set manually. Starting level for David Evans: 2,227, level confidence: 62%. Nick 'Or Tin' Benson to win as he is currently playing 107% better than David Evans. Nick 'Or Tin' Benson won all of the games and 74% 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 181% (PAR scoring). These are weighted and combined to calculate that Nick 'Or Tin' Benson played 181% better than David Evans in this match. Assuming that any level changes are shared between both players, for this result it looks like Nick 'Or Tin' Benson actually played at a level of 5,373 and David Evans at a level of 1,910. Without any damping, both players would need to be adjusted by 17% to match this result. Allowing for the difference in level between the players, including some additional protection for the better player, the adjustments have been reduced to 9.5% and 11% respectively. Factoring in the relative levels of confidence which allows players with low confidence in their levels to change more quickly, the adjustment for Nick 'Or Tin' Benson changes to +8.2% and David Evans changes to -11%. After applying standard match damping, the adjustment for Nick 'Or Tin' Benson becomes +3.3% and for David Evans becomes -5.2%. Given Nick 'Or Tin' Benson's level and the type of match played, an additional damping of 44% has been applied to his level change. Given David Evans's level and the type of match played, an additional damping of 4.4% has been applied to his level change. Apply match/event weighting of 50% for 'Redland Green Boxes' so the adjustment for Nick 'Or Tin' Benson is +1.1% and for David Evans is -2.4%. Increase level confidence due to one more match played. Nick 'Or Tin' Benson: 85%, David Evans: 79%. Reduce level confidence based on how unexpected the result is. Nick 'Or Tin' Benson: 73%, David Evans: 68%. 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 Nick 'Or Tin' Benson: 4,655, level confidence: 73%. Final level for David Evans: 2,171, level confidence: 68%. Notes
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