Event: Summer Max 480 Division

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Opponent Rating Result
Simon A Killarney 122 1 - 0
John P Donovan 87 0 - 1
Simon A Killarney 122 0 - 1
John P Donovan 87 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

105 = (418 + 400 * (2 - 2)) / 4)

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