Event: Rainham Championship Div 1

PDF Excel

Opponent	Rating	Result
Oliver James	1690	0 - 1
Keith Nevols	1863	0 - 1
Keith Nevols	1873	½ - ½
Tobias W Stock	2052	0 - 1
Oliver James	1789	½ - ½

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

1613 = (9267 + 400 * (0 - 3)) / 5)