Event: Durham League Division B

PDF Excel

Opponent	Rating	Result
Fedir Dyshliuk	0	0 - 1
Vaughan Davison	1622	½ - ½
Jack Gibson	0	1 - 0

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

541 = (1622 + 400 * (1 - 1)) / 3)