Event: Division Three

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Opponent Rating Result
Daniel Garcia-Leon 1460 1 - 0
Lawrence F Hayden 1650 0 - 1
Ray Sawyer 1614 0 - 1
Richard Wilkinson 1663 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1397 = (6387 + 400 * (1 - 3)) / 4)

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