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Login: | Explaining level changesBen Hubbard v Max 'Dub Fiend' Gilbert (Tue 29 Oct 2024)Match won by Ben Hubbard. Result: 15-4,15-7,15-2.Starting level for Ben Hubbard: 2,035, level confidence: 74%. Set manually. Starting level for Max 'Dub Fiend' Gilbert: 1,619, level confidence: 49%. Ben Hubbard to win as he is currently playing 26% better than Max 'Dub Fiend' Gilbert. Ben Hubbard won all of the games and 78% 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 246% (PAR scoring). These are weighted and combined to calculate that Ben Hubbard played 246% better than Max 'Dub Fiend' Gilbert in this match. Assuming that any level changes are shared between both players, for this result it looks like Ben Hubbard actually played at a level of 3,377 and Max 'Dub Fiend' Gilbert at a level of 976. Without any damping, both players would need to be adjusted by 66% to match this result. Allowing for the difference in level between the players, the adjustments have been reduced to 57% and 57% respectively. Factoring in the relative levels of confidence which allows players with low confidence in their levels to change more quickly, the adjustment for Ben Hubbard changes to +38% and Max 'Dub Fiend' Gilbert changes to -57%. After applying standard match damping, the adjustment for Ben Hubbard becomes +14.3% and for Max 'Dub Fiend' Gilbert becomes -22%. Given Ben Hubbard's level and the type of match played, an additional damping of 0.7% has been applied to his level change. Apply match/event weighting of 50% for 'Redland Green Boxes' so the adjustment for Ben Hubbard is +7.1% and for Max 'Dub Fiend' Gilbert is -9.9%. 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 Max 'Dub Fiend' Gilbert is limited to -8.4% 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. Ben Hubbard: 86%, Max 'Dub Fiend' Gilbert: 70%. Reduce level confidence based on how unexpected the result is. Ben Hubbard: 52%, Max 'Dub Fiend' Gilbert: 42%. A final adjustment of +1.6% 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 Ben Hubbard: 2,177, level confidence: 52%. Final level for Max 'Dub Fiend' Gilbert: 1,542, level confidence: 42%. Notes
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