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Login: | Explaining level changesBen 'Burger' Knight v Harry Duckworth (Sat 10 Feb 2024)Match won by Harry Duckworth. Result: 4-11,3-11,2-11.Starting level for Ben 'Burger' Knight: 2,250, level confidence: 69%. Starting level for Harry Duckworth: 4,964, level confidence: 84%. Set manually. Harry Duckworth to win as he is currently playing 121% better than Ben 'Burger' Knight. Harry Duckworth won all of the games and 79% 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 267% (PAR scoring). These are weighted and combined to calculate that Harry Duckworth played 267% better than Ben 'Burger' Knight in this match. Assuming that any level changes are shared between both players, for this result it looks like Harry Duckworth actually played at a level of 6,399 and Ben 'Burger' Knight at a level of 1,745. Without any damping, both players would need to be adjusted by 29% 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 14% and 19% respectively. Factoring in the relative levels of confidence which allows players with low confidence in their levels to change more quickly, the adjustment for Harry Duckworth changes to +12% and Ben 'Burger' Knight changes to -19%. After applying standard match damping, the adjustment for Harry Duckworth becomes +4.2% and for Ben 'Burger' Knight becomes -7.7%. Given Harry Duckworth's level and the type of match played, an additional damping of 49% has been applied to his level change. Given Ben 'Burger' Knight's level and the type of match played, an additional damping of 4.9% has been applied to his level change. Apply match/event weighting of 50% for 'Redland Green Boxes' so the adjustment for Harry Duckworth is +1.4% and for Ben 'Burger' Knight is -3.5%. Increase level confidence due to one more match played. Harry Duckworth: 91%, Ben 'Burger' Knight: 83%. Reduce level confidence based on how unexpected the result is. Harry Duckworth: 71%, Ben 'Burger' Knight: 65%. 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 Ben 'Burger' Knight: 2,170, level confidence: 65%. Final level for Harry Duckworth: 5,026, level confidence: 71%. Notes
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