Event: SCCA Division 1

Opponent Rating Result
Gary Hemsworth 1628 ½ - ½
Angus Irving 1747 ½ - ½
Piotr Dolewka 1520 ½ - ½
Simon Riley 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1324 = (4895 + 400 * (1 - 0)) / 4)

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