Event: Durham City Club Tournament

PDF Excel

Opponent	Rating	Result
Steve H Jefferies	1604	1 - 0
Dave Renton	0	1 - 0
Ken P Neat	2169	½ - ½
Fedir Dyshliuk	1815	0 - 1

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

1497 = (5588 + 400 * (2 - 1)) / 4)