Event: Div1

PDF Excel

Opponent	Rating	Result
Steve J Gibbs	153	1 - 0
Antony A Clare	169	0 - 1
Carl Gartside	157	1 - 0
Sohrab Panday	164	½ - ½

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

261 = (643 + 400 * (2 - 1)) / 4)