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Login: | Explaining level changesRichard Wager v Mark Howe (Wed 11 Sep 2024)Match won by Mark Howe. Result: 9-15,13-15,4-15.Starting level for Richard Wager: 266, level confidence: 89%. Set manually. Starting level for Mark Howe: 652, level confidence: 37%. Mark Howe to win as he is currently playing 145% better than Richard Wager. Mark Howe won all of the games and 63% 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 73% (PAR scoring). These are weighted and combined to calculate that Mark Howe played 73% better than Richard Wager in this match. Due to the difference between the players' levels, allow for the likelihood that Mark Howe was taking it easy by anything up to 18%. This gives him an allowed level range for this match between 396 and 652 without affecting his level. In this case, Mark Howe played at level 496 and remained within his allowed range so his level will not be adjusted. On the assumption that Mark Howe would normally have been playing at level 534 (based on typical behaviour), Richard Wager played better than expected and therefore gains a pre-damping level increase of 7.7%. Allowing for the difference in level between the players, including some additional protection for the better player, the adjustments have been reduced to 0% and 4.9% respectively. Factoring in the relative levels of confidence which allows players with low confidence in their levels to change more quickly, the adjustment for Mark Howe changes to 0% and Richard Wager changes to +2%. After applying standard match damping, the adjustment for Mark Howe becomes 0% and for Richard Wager becomes +2%. Apply match/event weighting of 50% for 'Yate Club' so the adjustment for Mark Howe is 0% and for Richard Wager is +1%. Increase level confidence due to one more match played. Mark Howe: 61%, Richard Wager: 95%. Reduce level confidence based on how unexpected the result is. Mark Howe: 51%, Richard Wager: 79%. 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 Richard Wager: 270, level confidence: 79%. Final level for Mark Howe: 651, level confidence: 51%. Notes
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