Event: Division 2 West

PDF Excel

Opponent	Rating	Result
Chris F Barratt	118	½ - ½
Stephen Green	103	0 - 1
John S O'Neill	119	½ - ½

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

-20 = (340 + 400 * (0 - 1)) / 3)