Event: League Division 3

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Opponent Rating Result
David Hitchman 1246 0 - 1
Nathaniel Mackenzie 1322 0 - 1
Tony Barnes 0 0 - 1
C Rodney S Mitchinson 1185 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

538 = (3753 + 400 * (0 - 4)) / 4)

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