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Login: | Explaining level changesNick 'Or Tin' Benson v George Keeble (Tue 12 Mar 2024)Match won by Nick 'Or Tin' Benson. Result: 11-4,11-6,11-8.Starting level for Nick 'Or Tin' Benson: 6,311, level confidence: 81%. Set manually. Starting level for George Keeble: 6,376, level confidence: 74%. Set manually. George Keeble to win as he is currently playing 1% better than Nick 'Or Tin' Benson. Nick 'Or Tin' Benson won all of the games and 65% 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 83% (PAR scoring). These are weighted and combined to calculate that Nick 'Or Tin' Benson played 83% better than George Keeble in this match. Assuming that any level changes are shared between both players, for this result it looks like Nick 'Or Tin' Benson actually played at a level of 8,589 and George Keeble at a level of 4,685. Without any damping, both players would need to be adjusted by 36% to match this result. Factoring in the relative levels of confidence which allows players with low confidence in their levels to change more quickly, the adjustment for Nick 'Or Tin' Benson changes to +33% and George Keeble changes to -36%. After applying standard match damping, the adjustment for Nick 'Or Tin' Benson becomes +9% and for George Keeble becomes -9.8%. Apply match/event weighting of 100% for 'Challenge' so the adjustment is unchanged. 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 George Keeble 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. Nick 'Or Tin' Benson: 90%, George Keeble: 86%. Reduce level confidence based on how unexpected the result is. Nick 'Or Tin' Benson: 66%, George Keeble: 63%. 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 Nick 'Or Tin' Benson: 6,841, level confidence: 66%. Final level for George Keeble: 6,121, level confidence: 63%. Notes
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