Event: SCCU County Championship: U1650

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Opponent Rating Result
Adam Sefton 1612 ½ - ½
Mathew Wilson 1550 0 - 1
David Flewellen 1635 0 - 1
Andrew Offord 1644 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1510 = (6441 + 400 * (1 - 2)) / 4)

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