Event: Chessmaster Challenge 80/10

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Opponent Rating Result
Alan Ward 1347 0 - 1
Glen Smith 1137 1 - 0
Tony Gill 1343 1 - 0
Paul Terry 1785 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1403 = (5612 + 400 * (2 - 2)) / 4)

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