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Event: Bi-Annual-Teams

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Opponent Rating Result
Phillip K Gardner 1791 0 - 1
Martin Berridge 1692 1 - 0
Peter T Sharpe 1746 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1610 = (5229 + 400 * (1 - 2)) / 3)

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