Event: Division 2

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Opponent Rating Result
Patrick Kelly 1565 0 - 1
Philip Sykes 1523 0 - 1
Stephen Shields 1350 0 - 1
David Mercer 1350 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1047 = (5788 + 400 * (0 - 4)) / 4)

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