Event: Div3

PDF Excel

Opponent	Rating	Result
Paul Williams	143	0 - 1
Dean M Hartley	147	0 - 1
Alex Bentley	156	0 - 1
Edward Brown	119	1 - 0
Terry Knight	55	1 - 0
Michael D Boreham	116	1 - 0
Roger W Walker	113	0 - 1
John Challenor	112	0 - 1
Paul Hardwick	109	1 - 0

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

74 = (1070 + 400 * (4 - 5)) / 9)