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Login: | Explaining level changesDivision 6: Lansdown 5 v University of Bristol Fresh (Wed 01 May 2024)Match played between Hakan Aysan (home) and Oscar 'Dad' Henshaw (away).Match won by Oscar 'Dad' Henshaw. Result: 9-15,15-13,7-15,15-10,12-15. Starting level for Hakan Aysan: 508, level confidence: 60%. Starting level for Oscar 'Dad' Henshaw: 968, level confidence: 52%. Oscar 'Dad' Henshaw to win as he is currently playing 91% better than Hakan Aysan. Oscar 'Dad' Henshaw won 60% of the games and 54% 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 17% (PAR scoring). These are weighted and combined to calculate that Oscar 'Dad' Henshaw played 12% better than Hakan Aysan in this match. Due to the difference between the players' levels, allow for the likelihood that Oscar 'Dad' Henshaw was taking it easy by anything up to 11%. This gives him an allowed level range for this match between 748 and 968 without affecting his level. As Oscar 'Dad' Henshaw has played below his allowed range at 652, his level reduction is 15% before damping. On the assumption that Oscar 'Dad' Henshaw would normally have been playing at level 863 (based on typical behaviour), Hakan Aysan played better than expected and therefore gains a pre-damping level increase of 23%. Allowing for the difference in level between the players, the adjustments have been reduced to 10.4% and 16% respectively. Factoring in the relative levels of confidence which allows players with low confidence in their levels to change more quickly, the adjustment for Oscar 'Dad' Henshaw changes to -10.4% and Hakan Aysan changes to +14%. After applying standard match damping, the adjustment for Oscar 'Dad' Henshaw becomes -6.7% and for Hakan Aysan becomes +8.5%. Apply match/event weighting of 75% for 'Mixed Spring 2023/2024' so the adjustment for Oscar 'Dad' Henshaw is -4.9% and for Hakan Aysan is +6.4%. Increase level confidence due to one more match played. Oscar 'Dad' Henshaw: 72%, Hakan Aysan: 77%. Reduce level confidence based on how unexpected the result is. Oscar 'Dad' Henshaw: 55%, Hakan Aysan: 59%. 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 Hakan Aysan: 540, level confidence: 59%. Final level for Oscar 'Dad' Henshaw: 921, level confidence: 55%. Notes
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