Event: County Championship

PDF Excel

Opponent	Rating	Result
Jason Golding	0	1 - 0
Richard Stokes	0	0 - 1
Alan J Nelder	1597	1 - 0
Jimmy Blair	0	1 - 0
Nicholas Lees	0	1 - 0

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

559 = (1597 + 400 * (4 - 1)) / 5)