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Login: | Explaining level changesDivision 2: Kingsdown Stallions v Gordano - Gordano (Wed 22 Nov 2023)Match played between Ed 'Fury' Ames (home) and Steve Gale (away).Match won by Steve Gale. Result: 8-15,7-15,11-15. Starting level for Ed 'Fury' Ames: 1,884, level confidence: 71%. Set manually. Starting level for Steve Gale: 1,935, level confidence: 72%. Set manually. Steve Gale to win as he is currently playing 3% better than Ed 'Fury' Ames. Steve Gale won all of the games and 63% 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 73% (PAR scoring). These are weighted and combined to calculate that Steve Gale played 73% better than Ed 'Fury' Ames in this match. Assuming that any level changes are shared between both players, for this result it looks like Steve Gale actually played at a level of 2,512 and Ed 'Fury' Ames at a level of 1,451. Without any damping, both players would need to be adjusted by 30% 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 Steve Gale changes to +29% and Ed 'Fury' Ames changes to -29%. After applying standard match damping, the adjustment for Steve Gale becomes +11.6% and for Ed 'Fury' Ames becomes -12%. Apply match/event weighting of 75% for 'Mixed Autumn 2023/2024' so the adjustment for Steve Gale is +8.7% and for Ed 'Fury' Ames is -8.7%. 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 Ed 'Fury' Ames 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. Steve Gale: 85%, Ed 'Fury' Ames: 84%. Reduce level confidence based on how unexpected the result is. Steve Gale: 65%, Ed 'Fury' Ames: 65%. 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 Ed 'Fury' Ames: 1,792, level confidence: 65%. Final level for Steve Gale: 2,101, level confidence: 65%. Notes
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