Event: Div1

PDF Excel

Opponent	Rating	Result
John Molyneux	200	0 - 1
Simon Scott	133	1 - 0
Mike Alcock	163	0 - 1
Andrew J Mort	158	½ - ½
Paul Williams	140	1 - 0
D Philip Morgan	147	1 - 0
Maurice J Hill	147	1 - 0

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

270 = (1088 + 400 * (4 - 2)) / 7)