|
Menu
Login: | Explaining level changesKirk Woodward v Richard Masom (Tue 24 Sep 2024)Match won by Kirk Woodward. Result: 11-9,11-6,11-3.Starting level for Kirk Woodward: 2,661, level confidence: 74%. Set manually. Starting level for Richard Masom: 2,074, level confidence: 71%. Set manually. Kirk Woodward to win as he is currently playing 28% better than Richard Masom. Kirk Woodward won all of the games and 65% 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 83% (PAR scoring). These are weighted and combined to calculate that Kirk Woodward played 83% better than Richard Masom in this match. Assuming that any level changes are shared between both players, for this result it looks like Kirk Woodward actually played at a level of 3,181 and Richard Masom at a level of 1,735. Without any damping, both players would need to be adjusted by 20% to match this result. Allowing for the difference in level between the players, the adjustments have been reduced to 17% and 17% respectively. Factoring in the relative levels of confidence which allows players with low confidence in their levels to change more quickly, the adjustment for Kirk Woodward changes to +16% and Richard Masom changes to -17%. After applying standard match damping, the adjustment for Kirk Woodward becomes +6.5% and for Richard Masom becomes -7.4%. Given Kirk Woodward's level and the type of match played, an additional damping of 12% has been applied to his level change. Given Richard Masom's level and the type of match played, an additional damping of 1.5% has been applied to his level change. Apply match/event weighting of 50% for 'Redland Green Boxes' so the adjustment for Kirk Woodward is +2.9% and for Richard Masom is -3.5%. Increase level confidence due to one more match played. Kirk Woodward: 86%, Richard Masom: 84%. Reduce level confidence based on how unexpected the result is. Kirk Woodward: 72%, Richard Masom: 70%. A final adjustment of +0% 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 Kirk Woodward: 2,739, level confidence: 72%. Final level for Richard Masom: 2,005, level confidence: 70%. Notes
|