Event: Steele Cup

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Opponent Rating Result
James W Gill 75 1 - 0
Michael Davies 89 0 - 1
Ray Rennells 80 0 - 1
John L Clarke 98 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-115 = (342 + 400 * (1 - 3)) / 4)

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