Event: Doncaster League

PDF Excel

Opponent	Rating	Result
Peter Convery	153	0 - 1
Alexandru Zimleanschi	136	0 - 1
Peter M Tate	129	½ - ½
Phillip J Battye	131	1 - 0
Richard E Desmedt	153	0 - 1
Pete Micklethwaite	154	½ - ½
Craig Le Masurier	110	1 - 0

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

81 = (966 + 400 * (2 - 3)) / 7)