Event: Div4

PDF Excel

Opponent	Rating	Result
Paul Kelman	136	½ - ½
Tomasz D Adamski	111	1 - 0
Paul Kelman	136	½ - ½
Craig Harrison	111	1 - 0
Ray Sawyer	0	½ - ½
John E Fryer	125	1 - 0
David Short	102	½ - ½
Sophie Bentley	95	1 - 0

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

302 = (816 + 400 * (4 - 0)) / 8)