Event: Durham City Club Tournament

PDF Excel

Opponent	Rating	Result
Fedir Dyshliuk	1815	0 - 1
Philip Brooks	1581	0 - 1
Steve H Jefferies	1604	0 - 1

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

1267 = (5000 + 400 * (0 - 3)) / 3)