Event: Steele Cup

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Opponent Rating Result
Peter LT Blundell 115 0 - 1
Gary Hilleard 107 ½ - ½
Andy Flood 115 0 - 1
Clive J Le Baigue 121 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

15 = (458 + 400 * (1 - 2)) / 4)

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