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Login: | Explaining level changesRichard Dodsworth v Tejas Ramanan (Sun 05 Sep 2021)Match won by Richard Dodsworth. Result: 16-18,15-5,15-7,7-15,15-8.Starting level for Richard Dodsworth: 2,778, level confidence: 64%. Starting level for Tejas Ramanan: 1,106, level confidence: 50%. Richard Dodsworth to win as he is currently playing 151% better than Tejas Ramanan. Richard Dodsworth won 60% of the games and 56% 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 28% (PAR scoring). These are weighted and combined to calculate that Richard Dodsworth played 15% better than Tejas Ramanan in this match. Due to the difference between the players' levels, allow for the likelihood that Richard Dodsworth was taking it easy by anything up to 19%. This gives him an allowed level range for this match between 1,651 and 2,778 without affecting his level. As Richard Dodsworth has played below his allowed range at 1,446, his level reduction is 14% before damping. On the assumption that Richard Dodsworth would normally have been playing at level 2,256 (based on typical behaviour), Tejas Ramanan played better than expected and therefore gains a pre-damping level increase of 33%. Allowing for the difference in level between the players, the adjustments have been reduced to 8.7% and 20% respectively. Factoring in the relative levels of confidence which allows players with low confidence in their levels to change more quickly, the adjustment for Richard Dodsworth changes to -6.6% and Tejas Ramanan changes to +20%. After applying standard match damping, the adjustment for Richard Dodsworth becomes -3.3% and for Tejas Ramanan becomes +10.7%. Given Richard Dodsworth's level and the type of match played, an additional damping of 15% has been applied to his level change. Looks like he wasn't taking the match too seriously... Apply match/event weighting of 50% for 'Westbury David Lloyd Boxes' so the adjustment for Richard Dodsworth is -1.4% and for Tejas Ramanan is +5.3%. Increase level confidence due to one more match played. Richard Dodsworth: 80%, Tejas Ramanan: 70%. Reduce level confidence based on how unexpected the result is. Richard Dodsworth: 54%, Tejas Ramanan: 48%. A final adjustment of +0.3% 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 Richard Dodsworth: 2,746, level confidence: 54%. Final level for Tejas Ramanan: 1,168, level confidence: 48%. Notes
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