Event: Division 2

Opponent Rating Result
Mike J Cresswell 1688 0 - 1
Adrian P Joseph 1888 0 - 1
Sergey Pereslavtsev 1150 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1175 = (4726 + 400 * (0 - 3)) / 3)

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