Event: Northwich Ladder

PDF Excel

Opponent	Rating	Result
Ingmar So	1170	0 - 1
Jake Sullivan	1643	1 - 0
Joel West	1607	1 - 0

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

1607 = (4420 + 400 * (2 - 1)) / 3)