|
Menu
Login: | Explaining level changesFreddie 'Racquet Skills' Borg v Ollie Davies (Sat 09 Dec 2017)Match won by Freddie 'Racquet Skills' Borg. Result: 8-11,11-7,11-6,11-4.Starting level for Freddie 'Racquet Skills' Borg: 1,485, level confidence: 58%. Starting level for Ollie Davies: 667, level confidence: 25%. Freddie 'Racquet Skills' Borg to win as he is currently playing 123% better than Ollie Davies. Freddie 'Racquet Skills' Borg won 75% of the games and 59% 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 46% (PAR scoring). These are weighted and combined to calculate that Freddie 'Racquet Skills' Borg played 32% better than Ollie Davies in this match. Due to the difference between the players' levels, allow for the likelihood that Freddie 'Racquet Skills' Borg was taking it easy by anything up to 15%. This gives him an allowed level range for this match between 981 and 1,485 without affecting his level. As Freddie 'Racquet Skills' Borg has played below his allowed range at 930, his level reduction is 5.5% before damping. On the assumption that Freddie 'Racquet Skills' Borg would normally have been playing at level 1,258 (based on typical behaviour), Ollie Davies played better than expected and therefore gains a pre-damping level increase of 20%. Allowing for the difference in level between the players, the adjustments have been reduced to 3.7% and 13% respectively. Factoring in the relative levels of confidence which allows players with low confidence in their levels to change more quickly, the adjustment for Freddie 'Racquet Skills' Borg changes to -1.6% and Ollie Davies changes to +13%. After applying standard match damping, the adjustment for Freddie 'Racquet Skills' Borg becomes -1.3% and for Ollie Davies becomes +7.7%. Apply match/event weighting of 50% for 'University Bristol Intramural Leagues' so the adjustment for Freddie 'Racquet Skills' Borg is -0.7% and for Ollie Davies is +3.9%. Increase level confidence due to one more match played. Freddie 'Racquet Skills' Borg: 76%, Ollie Davies: 50%. Reduce level confidence based on how unexpected the result is. Freddie 'Racquet Skills' Borg: 58%, Ollie Davies: 39%. 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 Freddie 'Racquet Skills' Borg: 1,460, level confidence: 58%. Final level for Ollie Davies: 699, level confidence: 39%. Notes
|