Event: Worcestershire Rapidplay league

PDF Excel

Opponent	Rating	Result
Antonia (Toni) T Reed	1564	0 - 1
Antonia (Toni) T Reed	1564	1 - 0

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

1564 = (3128 + 400 * (1 - 1)) / 2)