Event: Div1

PDF Excel

Opponent	Rating	Result
John Molyneux	200	0 - 1
Michael J Alderson	176	0 - 1
Simon Scott	133	1 - 0
Kenneth GE Morrison	172	½ - ½
Simon Scott	133	0 - 1
Dragoljub Sudar	163	0 - 1
Steve J Gibbs	153	½ - ½

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

-10 = (1130 + 400 * (1 - 4)) / 7)