Event: D&DCL Div 2

PDF Excel

Opponent	Rating	Result
James R Shore	1713	0 - 1
Owen Dale	0	0 - 1
Michael WA Hoare	1683	0 - 1
Andy Bacon	1428	½ - ½
Owen Dale	0	0 - 1

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

645 = (4824 + 400 * (0 - 4)) / 5)