Event: Div3

PDF Excel

Opponent	Rating	Result
Terry Knight	56	1 - 0
Jonathon Swift	94	0 - 1
J Martin Gibson	71	1 - 0
Alan Holden	111	0 - 1

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

83 = (332 + 400 * (2 - 2)) / 4)