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Login: | Explaining level changesDivision 4: University of Bristol Sharks v Whitchurch Imperial A (Thu 14 Nov 2024)Match played between Felix 'Tennis' Ovey (home) and Neal Peacock (away).Match won by Neal Peacock. Result: 12-15,5-15,4-15. Starting level for Felix 'Tennis' Ovey: 271, level confidence: 54%. Starting level for Neal Peacock: 849, level confidence: 59%. Neal Peacock to win as he is currently playing 213% better than Felix 'Tennis' Ovey. Neal Peacock won all of the games and 68% 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 114% (PAR scoring). These are weighted and combined to calculate that Neal Peacock played 114% better than Felix 'Tennis' Ovey in this match. Due to the difference between the players' levels, allow for the likelihood that Neal Peacock was taking it easy by anything up to 26%. This gives him an allowed level range for this match between 433 and 849 without affecting his level. In this case, Neal Peacock played at level 605 and remained within his allowed range so his level will not be adjusted. On the assumption that Neal Peacock would normally have been playing at level 629 (based on typical behaviour), Felix 'Tennis' Ovey played better than expected and therefore gains a pre-damping level increase of 4.1%. Allowing for the difference in level between the players, including some additional protection for the better player, the adjustments have been reduced to 0% and 2.3% respectively. Factoring in the relative levels of confidence which allows players with low confidence in their levels to change more quickly, the adjustment for Neal Peacock changes to 0% and Felix 'Tennis' Ovey changes to +2.3%. After applying standard match damping, the adjustment for Neal Peacock becomes 0% and for Felix 'Tennis' Ovey becomes +2.3%. Apply match/event weighting of 75% for 'Mixed Autumn 2024/2025' so the adjustment for Neal Peacock is 0% and for Felix 'Tennis' Ovey is +1.7%. Increase level confidence due to one more match played. Neal Peacock: 77%, Felix 'Tennis' Ovey: 73%. Reduce level confidence based on how unexpected the result is. Neal Peacock: 64%, Felix 'Tennis' Ovey: 60%. A final adjustment of -0.2% 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 Felix 'Tennis' Ovey: 275, level confidence: 60%. Final level for Neal Peacock: 848, level confidence: 64%. Notes
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