Event: u1850 County Championship

PDF Excel

Opponent	Rating	Result
Sergejs Starodubcevs	1708	0 - 1
Marcin Rodzik	1450	1 - 0
Ayomikun Adegboye	1732	½ - ½
John WF McAllister	1653	1 - 0
Gert De Block	1595	1 - 0
Graham K Blowers	1732	½ - ½

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

1778 = (9870 + 400 * (3 - 1)) / 6)