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Login: | Explaining level changesPremier C: Bradley Stoke Squash Club A v BAWA A (Wed 13 Nov 2024)Match played between Neil Beetlestone (home) and Lyndon Hore (away).Match won by Lyndon Hore. Result: 6-11,2-11,6-11. Starting level for Neil Beetlestone: 2,459, level confidence: 68%. Starting level for Lyndon Hore: 3,373, level confidence: 76%. Set manually. Lyndon Hore to win as he is currently playing 37% better than Neil Beetlestone. Lyndon Hore won all of the games and 70% 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 136% (PAR scoring). These are weighted and combined to calculate that Lyndon Hore played 136% better than Neil Beetlestone in this match. Assuming that any level changes are shared between both players, for this result it looks like Lyndon Hore actually played at a level of 4,422 and Neil Beetlestone at a level of 1,876. Without any damping, both players would need to be adjusted by 31% to match this result. Allowing for the difference in level between the players, the adjustments have been reduced to 26% and 26% respectively. Factoring in the relative levels of confidence which allows players with low confidence in their levels to change more quickly, the adjustment for Lyndon Hore changes to +23% and Neil Beetlestone changes to -26%. After applying standard match damping, the adjustment for Lyndon Hore becomes +8.1% and for Neil Beetlestone becomes -9.9%. Apply match/event weighting of 75% for 'Mixed Autumn 2024/2025' so the adjustment for Lyndon Hore is +6.1% and for Neil Beetlestone is -7.2%. Apply limits to the amount of change for a single match which are based on player level, level confidence and time since last match so that Neil Beetlestone is limited to -5% level change. In general a player's level won't go up by more than 10% or drop more than 5% if they've played in the last 7 days but those limits are relaxed if their previous match was further back. Increase level confidence due to one more match played. Lyndon Hore: 87%, Neil Beetlestone: 82%. Reduce level confidence based on how unexpected the result is. Lyndon Hore: 67%, Neil Beetlestone: 63%. 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 Neil Beetlestone: 2,338, level confidence: 63%. Final level for Lyndon Hore: 3,573, level confidence: 67%. Notes
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