Event: Hillingdon Div 2

PDF Excel

Opponent	Rating	Result
John Clenshaw	1710	1 - 0
John Clenshaw	1728	1 - 0
Peter D Walters	1976	0 - 1
Alastair G Johnstone	1643	1 - 0
Mark Connor	1480	0 - 1
Michael C Price	1763	½ - ½
Cherag Irani	1690	½ - ½

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

1770 = (11990 + 400 * (3 - 2)) / 7)