Event: Div3

PDF Excel

Opponent	Rating	Result
John Challenor	114	1 - 0
Douglas Bramley	105	1 - 0
John Challenor	112	½ - ½
Dean M Hartley	141	0 - 1
Ronald S Harrison	121	½ - ½
Duncan J Livsey	122	0 - 1
Paul Hardwick	109	½ - ½
Duncan J Livsey	130	1 - 0
Peter Brace	133	0 - 1

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

121 = (1087 + 400 * (3 - 3)) / 9)