Event: Div3

PDF Excel

Opponent	Rating	Result
Peter Brace	133	1 - 0
Norman W Parkin	94	½ - ½
J Martin Gibson	62	1 - 0
J Martin Gibson	62	1 - 0
Ray Sawyer	0	1 - 0

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

390 = (351 + 400 * (4 - 0)) / 5)