Event: Division 2

PDF Excel

Opponent	Rating	Result
Will Grummitt	138	½ - ½
Maurice J Hill	150	0 - 1
Ian J Burridge	134	1 - 0
Ben Mason	143	0 - 1

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

41 = (565 + 400 * (1 - 2)) / 4)