Menu | Explaining level changesNick Moore v Richard Cobb (Fri 16 Feb 2024)Match won by Nick Moore. Result: 11-6,11-7.Starting level for Nick Moore: 1,182, level confidence: 42%. Starting level for Richard Cobb: 1,210, level confidence: 22%. Richard Cobb to win as he is currently playing 2% better than Nick Moore. Nick Moore 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 69% (PAR scoring). These are weighted and combined to calculate that Nick Moore played 69% better than Richard Cobb in this match. Assuming that any level changes are shared between both players, for this result it looks like Nick Moore actually played at a level of 1,556 and Richard Cobb at a level of 919. Without any damping, both players would need to be adjusted by 32% to match this result. As this is a best of 3 match rather than best of 5, these adjustments have been reduced to 23% and 23% respectively. Factoring in the relative levels of confidence which allows players with low confidence in their levels to change more quickly, the adjustment for Nick Moore changes to +12% and Richard Cobb changes to -23%. After applying standard match damping, the adjustment for Nick Moore becomes +6.9% and for Richard Cobb becomes -11%. Apply match/event weighting of 100% for 'East England Feb '24 Open' 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 Richard Cobb 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. Richard Cobb has already dropped 9.4% since starting this event at level 1324. The amount a player can drop in a single event is limited to 11.1% so Richard Cobb's drop for this match has been limited to 2%. Increase level confidence due to one more match played. Nick Moore: 64%, Richard Cobb: 47%. Reduce level confidence based on how unexpected the result is. Nick Moore: 49%, Richard Cobb: 36%. 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 Moore: 1,267, level confidence: 49%. Final level for Richard Cobb: 1,192, level confidence: 36%. Notes
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