Event: 5th Cornwall Online League

PDF Excel

Opponent	Rating	Result
Trevor Palmer	1663	0 - 1
Nigel J Kirkman	1665	0 - 1
Pat Scully	1328	1 - 0
Mark Reid	1523	½ - ½

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

1445 = (6179 + 400 * (1 - 2)) / 4)