Event: A Division

PDF Excel

Opponent	Rating	Result
Steven B Booth	1967	0 - 1
Michael J Creaney	1657	1 - 0
Paul D Perrett	1811	0 - 1

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

1678 = (5435 + 400 * (1 - 2)) / 3)