Event: Durham City Club Tournament

PDF Excel

Opponent	Rating	Result
Andy Proudfoot	1547	0 - 1
Fedir Dyshliuk	1815	0 - 1
Vaughan Davison	1585	0 - 1

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

1249 = (4947 + 400 * (0 - 3)) / 3)