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Campbell Grayson v Ryan Cuskelly (Sat 10 Aug 2019)

Match won by Campbell Grayson. Result: 11-6,11-7,3-11,8-11,11-5.

Starting level for Campbell Grayson: 40,030, level confidence: 55%.
Starting level for Ryan Cuskelly: 46,580, level confidence: 77%. Set manually.
Ryan Cuskelly to win as he is currently playing 16% better than Campbell Grayson.

Campbell Grayson won 60% of the games and 52% of the points.
This games result would be expected if he was better by around 10%.
This points result would be expected if he was better by around 10% (PAR scoring).
These are weighted and combined to calculate that Campbell Grayson played 10% better than Ryan Cuskelly in this match.

Assuming that any level changes are shared between both players, for this result it looks like Campbell Grayson actually played at a level of 45,289 and Ryan Cuskelly at a level of 41,171. Without any damping, both players would need to be adjusted by 13% to match this result.


Factoring in the relative levels of confidence which allows players with low confidence in their levels to change more quickly, the adjustment for Campbell Grayson changes to +12% and Ryan Cuskelly changes to -8.4%.

After applying standard match damping, the adjustment for Campbell Grayson becomes +2.8% and for Ryan Cuskelly becomes -2.1%.

Apply match/event weighting of 100% for 'PSA Houston Open' so the adjustment is unchanged.

Increase level confidence due to one more match played. Campbell Grayson: 74%, Ryan Cuskelly: 88%. Reduce level confidence based on how unexpected the result is. Campbell Grayson: 66%, Ryan Cuskelly: 78%.

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 Campbell Grayson: 41,091, level confidence: 66%.
Final level for Ryan Cuskelly: 45,641, level confidence: 78%.