Event: Armstrong Cup

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Opponent Rating Result
Phil H Jackson 1525 0 - 1
Joel Tofield-Brown 1502 0 - 1
Steve Burnell 1792 0 - 1
Phil H Jackson 1549 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1192 = (6368 + 400 * (0 - 4)) / 4)

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