Event: Division 4

PDF Excel

Opponent	Rating	Result
Robert H Willoughby	125	1 - 0
Graham I Ladds	150	0 - 1
Adam G Spencer	121	0 - 1
Keith W Roper	137	0 - 1
Tom Dabner	128	0 - 1
Barry T Redburn	120	0 - 1
Robert H Willoughby	125	½ - ½

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

-99 = (906 + 400 * (1 - 5)) / 7)