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Login: | Explaining level changesBen 'Burger' Knight v Anthony Dyer (Tue 11 Jan 2022)Match won by Ben 'Burger' Knight. Result: 15-5,15-12,11-15,12-15,15-9.Starting level for Ben 'Burger' Knight: 2,622, level confidence: 34%. Starting level for Anthony Dyer: 1,182, level confidence: 84%. Set manually. Ben 'Burger' Knight to win as he is currently playing 122% better than Anthony Dyer. Ben 'Burger' Knight won 60% of the games and 55% of the points. This games result would be expected if he was better by around 10%. This points result would be expected if he was better by around 21% (PAR scoring). These are weighted and combined to calculate that Ben 'Burger' Knight played 13% better than Anthony Dyer in this match. Due to the difference between the players' levels, allow for the likelihood that Ben 'Burger' Knight was taking it easy by anything up to 15%. This gives him an allowed level range for this match between 1,737 and 2,622 without affecting his level. As Ben 'Burger' Knight has played below his allowed range at 1,522, his level reduction is 14% before damping. On the assumption that Ben 'Burger' Knight would normally have been playing at level 2,224 (based on typical behaviour), Anthony Dyer played better than expected and therefore gains a pre-damping level increase of 29%. Allowing for the difference in level between the players, the adjustments have been reduced to 9.3% 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 Ben 'Burger' Knight changes to -9.3% and Anthony Dyer changes to +7.7%. After applying standard match damping, the adjustment for Ben 'Burger' Knight becomes -4.3% and for Anthony Dyer becomes +4.9%. Given Ben 'Burger' Knight's level and the type of match played, an additional damping of 12% has been applied to his level change. Looks like he wasn't taking the match too seriously... Apply match/event weighting of 50% for 'Redland Green Boxes' so the adjustment for Ben 'Burger' Knight is -1.9% and for Anthony Dyer is +2.5%. Increase level confidence due to one more match played. Ben 'Burger' Knight: 59%, Anthony Dyer: 92%. Reduce level confidence based on how unexpected the result is. Ben 'Burger' Knight: 42%, Anthony Dyer: 65%. A final adjustment of -0.2% 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: 2,570, level confidence: 42%. Final level for Anthony Dyer: 1,209, level confidence: 65%. Notes
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