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Login: | Explaining level changesPremier A: University of Bath 1 v David Lloyd A (Thu 28 Apr 2022)Match played between Pascal 'One-K Geezer' Fard (home) and Grant Jones (away).Match won by Grant Jones. Result: 8-11,4-11,13-15. Starting level for Pascal 'One-K Geezer' Fard: 1,257, level confidence: 41%. Starting level for Grant Jones: 2,970, level confidence: 68%. Grant Jones to win as he is currently playing 136% better than Pascal 'One-K Geezer' Fard. Grant Jones won all of the games and 60% 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 48% (PAR scoring). These are weighted and combined to calculate that Grant Jones played 50% better than Pascal 'One-K Geezer' Fard in this match. Due to the difference between the players' levels, allow for the likelihood that Grant Jones was taking it easy by anything up to 17%. This gives him an allowed level range for this match between 1,954 and 2,970 without affecting his level. As Grant Jones has played below his allowed range at 1,921, his level reduction is 1.7% before damping. On the assumption that Grant Jones would normally have been playing at level 2,466 (based on typical behaviour), Pascal 'One-K Geezer' Fard played better than expected and therefore gains a pre-damping level increase of 14%. Allowing for the difference in level between the players, the adjustments have been reduced to 1.1% and 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 Grant Jones changes to -0.7% and Pascal 'One-K Geezer' Fard changes to +9%. After applying standard match damping, the adjustment for Grant Jones becomes -0.5% and for Pascal 'One-K Geezer' Fard becomes +5.4%. Apply match/event weighting of 75% for 'Mixed Spring 2021/2022' so the adjustment for Grant Jones is -0.3% and for Pascal 'One-K Geezer' Fard is +4.1%. Increase level confidence due to one more match played. Grant Jones: 82%, Pascal 'One-K Geezer' Fard: 64%. Reduce level confidence based on how unexpected the result is. Grant Jones: 66%, Pascal 'One-K Geezer' Fard: 51%. A final adjustment of +1.5% 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 Pascal 'One-K Geezer' Fard: 1,349, level confidence: 51%. Final level for Grant Jones: 2,956, level confidence: 66%. Notes
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