Event: Division 2

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Opponent Rating Result
Andy Medcalf 1502 0 - 1
Matt Drury 1676 0 - 1
Ian Craig 1451 0 - 1
Adrian Lee 1730 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1190 = (6359 + 400 * (0 - 4)) / 4)

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