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Login: | Explaining level changesMike Reeves v Oliver Standeven (Tue 14 May 2024)Match won by Oliver Standeven. Result: 6-15,11-15,15-13,6-15.Starting level for Mike Reeves: 188, level confidence: 54%. Starting level for Oliver Standeven: 487, level confidence: 24%. Oliver Standeven to win as he is currently playing 159% better than Mike Reeves. Oliver Standeven won 75% of the games and 60% of the points. This games result would be expected if he was better by around 25%. This points result would be expected if he was better by around 53% (PAR scoring). These are weighted and combined to calculate that Oliver Standeven played 34% better than Mike Reeves in this match. Due to the difference between the players' levels, allow for the likelihood that Oliver Standeven was taking it easy by anything up to 20%. This gives him an allowed level range for this match between 281 and 487 without affecting his level. As Oliver Standeven has played below his allowed range at 266, his level reduction is 5.6% before damping. On the assumption that Oliver Standeven would normally have been playing at level 391 (based on typical behaviour), Mike Reeves played better than expected and therefore gains a pre-damping level increase of 25%. Allowing for the difference in level between the players, including some additional protection for the better player, the adjustments have been reduced to 1.4% and 15% respectively. Factoring in the relative levels of confidence which allows players with low confidence in their levels to change more quickly, the adjustment for Oliver Standeven changes to -1.4% and Mike Reeves changes to +6.6%. After applying standard match damping, the adjustment for Oliver Standeven becomes -1.4% and for Mike Reeves becomes +4.8%. Apply match/event weighting of 50% for 'Weston Club Boxes' so the adjustment for Oliver Standeven is -0.7% and for Mike Reeves is +2.4%. Increase level confidence due to one more match played. Oliver Standeven: 49%, Mike Reeves: 73%. Reduce level confidence based on how unexpected the result is. Oliver Standeven: 35%, Mike Reeves: 53%. 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 Mike Reeves: 192, level confidence: 53%. Final level for Oliver Standeven: 483, level confidence: 35%. Notes
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