Event: A Division

PDF Excel

Opponent	Rating	Result
Martyn Hamer	189	1 - 0
William O'Rourke	154	1 - 0
Robert A Newton	179	1 - 0

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

574 = (522 + 400 * (3 - 0)) / 3)