Event: SCCA Division 3

Opponent Rating Result
David Robertson 0 1 - 0
Simon Webber 1608 ½ - ½
Simon Riley 1724 1 - 0
Ken Lunn 1503 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1409 = (4835 + 400 * (2 - 0)) / 4)

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