Event: DHCC New Year 2023 Online Rapidplay

PDF Excel

Opponent	Rating	Result
Rosie Irwin	0	0 - 1
Andrew Mullins	0	0 - 1
John M Oughton	0	½ - ½
Paul Davies	0	0 - 1
Geoffrey D Brown	0	0 - 1

performance = (sum(opponents ratings) + 400(wins-losses)) / games

-320 = (0 + 400 * (0 - 4)) / 5)