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Login: | Explaining level changesPremier C: Bradley Stoke Squash Club A v Lansdown 2 (Wed 16 Oct 2024)Match played between Andrew Blake (home) and Jeremy Goulding (away).Match won by Jeremy Goulding. Result: 6-11,11-7,3-11,12-10,3-11. Starting level for Andrew Blake: 1,483, level confidence: 77%. Set manually. Starting level for Jeremy Goulding: 3,181, level confidence: 73%. Set manually. Jeremy Goulding to win as he is currently playing 114% better than Andrew Blake. Jeremy Goulding won 60% of the games and 59% 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 43% (PAR scoring). These are weighted and combined to calculate that Jeremy Goulding played 18% better than Andrew Blake in this match. Due to the difference between the players' levels, allow for the likelihood that Jeremy Goulding was taking it easy by anything up to 14%. This gives him an allowed level range for this match between 2,250 and 3,181 without affecting his level. As Jeremy Goulding has played below his allowed range at 1,986, his level reduction is 13% before damping. On the assumption that Jeremy Goulding would normally have been playing at level 2,727 (based on typical behaviour), Andrew Blake played better than expected and therefore gains a pre-damping level increase of 25%. Allowing for the difference in level between the players, the adjustments have been reduced to 8.6% 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 Jeremy Goulding changes to -8.6% and Andrew Blake changes to +15%. After applying standard match damping, the adjustment for Jeremy Goulding becomes -3.8% and for Andrew Blake becomes +7.7%. Apply match/event weighting of 75% for 'Mixed Autumn 2024/2025' so the adjustment for Jeremy Goulding is -2.8% and for Andrew Blake is +5.8%. Increase level confidence due to one more match played. Jeremy Goulding: 86%, Andrew Blake: 88%. Reduce level confidence based on how unexpected the result is. Jeremy Goulding: 64%, Andrew Blake: 65%. A final adjustment of +0.2% 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 Andrew Blake: 1,569, level confidence: 65%. Final level for Jeremy Goulding: 3,105, level confidence: 64%. Notes
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