Event: SCL Div 5

Opponent Rating Result
Michael R Pope 1482 0 - 1
Pedro Silva Ferreira 1567 0 - 1
James Gray 1229 1 - 0
David T Murchie 1343 1 - 0
Dean Rawlins 1316 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1307 = (6937 + 400 * (2 - 3)) / 5)

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