Event: Div3

PDF Excel

Opponent	Rating	Result
Paul Kelman	138	0 - 1
Chris A Fraser	124	0 - 1
Sophie Bentley	0	1 - 0
Duncan J Livsey	122	0 - 1
Alan Holden	107	0 - 1
Dudley Thorpe	0	0 - 1
Jonathon Swift	96	½ - ½
Michael D Boreham	116	0 - 1
Ronald S Harrison	121	½ - ½
Andy Bacon	0	0 - 1

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

-158 = (824 + 400 * (1 - 7)) / 10)