|
Menu
Login: | Explaining level changesPremier B: University of Bath 2 v Westbury David Lloyd A (Thu 07 Apr 2022)Match played between Noah 'No Show' Browne (home) and Chris Lawrance (away).Match won by Noah 'No Show' Browne. Result: 12-10,9-11,11-6,11-6:12-10,11-9,11-8:11-6,11-6,11-4:11-9,11-8,7-11,5-11,8-11:?-?. Starting level for Noah 'No Show' Browne: 3,608, level confidence: 54%. Starting level for Chris Lawrance: 2,665, level confidence: 79%. Set manually. Noah 'No Show' Browne to win as he is currently playing 35% better than Chris Lawrance. Noah 'No Show' Browne won 75% of the games and 57% of the points. This games result would be expected if he was better by around 25%. This points result would be expected if he was better by around 30% (PAR scoring). These are weighted and combined to calculate that Noah 'No Show' Browne played 27% better than Chris Lawrance in this match. In this case, Noah 'No Show' Browne played at level 3,440 and remained within his allowed range so his level will not be adjusted. On the assumption that Noah 'No Show' Browne would normally have been playing at level 3,503 (based on typical behaviour), Chris Lawrance played better than expected and therefore gains a pre-damping level increase of 1.8%. Allowing for the difference in level between the players, the adjustments have been reduced to 0% and 1.6% respectively. Factoring in the relative levels of confidence which allows players with low confidence in their levels to change more quickly, the adjustment for Noah 'No Show' Browne changes to 0% and Chris Lawrance changes to +1.1%. After applying standard match damping, the adjustment for Noah 'No Show' Browne becomes 0% and for Chris Lawrance becomes +0.8%. Apply match/event weighting of 75% for 'Mixed Spring 2021/2022' so the adjustment for Noah 'No Show' Browne is 0% and for Chris Lawrance is +0.6%. Increase level confidence due to one more match played. Noah 'No Show' Browne: 74%, Chris Lawrance: 89%. Reduce level confidence based on how unexpected the result is. Noah 'No Show' Browne: 71%, Chris Lawrance: 86%. 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 Noah 'No Show' Browne: 3,603, level confidence: 71%. Final level for Chris Lawrance: 2,676, level confidence: 86%. Notes
|