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Event: Bi-Annual-Teams

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Opponent Rating Result
Ilan Dwek 1723 ½ - ½
Chris Williamson 1516 0 - 1
Michael W Simmons 1383 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1541 = (4622 + 400 * (1 - 1)) / 3)

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