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Event: Average under 1400

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Opponent Rating Result
Matthew Cutler 1360 1 - 0
Rob Davies 1278 1 - 0
Matthew A Haines 1000 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1346 = (3638 + 400 * (2 - 1)) / 3)

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