Event: Doncaster Handicap League

PDF Excel

Opponent	Rating	Result
Peter M Tate	120	1 - 0
Phillip J Battye	132	0 - 1
Mark Anderson	86	½ - ½
John Gibbs	108	0 - 1

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

12 = (446 + 400 * (1 - 2)) / 4)