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Login: | Explaining level changesDivision 6: University of Bristol Tryers v University of Bath 5 (Thu 16 Nov 2023)Match played between Ben 'Mothman' Doyle (home) and Matthew Quayle (away).Match won by Matthew Quayle. Result: 10-15,13-15,10-15. Starting level for Ben 'Mothman' Doyle: 541, level confidence: 58%. Starting level for Matthew Quayle: 1,008, level confidence: 26%. Matthew Quayle to win as he is currently playing 86% better than Ben 'Mothman' Doyle. Matthew Quayle won all of the games and 58% 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 36% (PAR scoring). These are weighted and combined to calculate that Matthew Quayle played 43% better than Ben 'Mothman' Doyle in this match. Due to the difference between the players' levels, allow for the likelihood that Matthew Quayle was taking it easy by anything up to 10%. This gives him an allowed level range for this match between 793 and 1,008 without affecting his level. As Matthew Quayle has played below his allowed range at 782, his level reduction is 1.4% before damping. On the assumption that Matthew Quayle would normally have been playing at level 906 (based on typical behaviour), Ben 'Mothman' Doyle played better than expected and therefore gains a pre-damping level increase of 8.4%. Allowing for the difference in level between the players, the adjustments have been reduced to 1% and 6.1% respectively. Factoring in the relative levels of confidence which allows players with low confidence in their levels to change more quickly, the adjustment for Matthew Quayle changes to -1% and Ben 'Mothman' Doyle changes to +2.8%. After applying standard match damping, the adjustment for Matthew Quayle becomes -1% and for Ben 'Mothman' Doyle becomes +2.8%. Apply match/event weighting of 75% for 'Mixed Autumn 2023/2024' so the adjustment for Matthew Quayle is -0.7% and for Ben 'Mothman' Doyle is +2.1%. Increase level confidence due to one more match played. Matthew Quayle: 51%, Ben 'Mothman' Doyle: 76%. Reduce level confidence based on how unexpected the result is. Matthew Quayle: 45%, Ben 'Mothman' Doyle: 66%. 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 'Mothman' Doyle: 551, level confidence: 66%. Final level for Matthew Quayle: 999, level confidence: 45%. Notes
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