Event: Division 3 West

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Opponent Rating Result
Martin I Willis 129 1 - 0
Patrick S Wojcik 114 ½ - ½
Robert D Harris 104 1 - 0
Theo Kirby 110 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

414 = (457 + 400 * (3 - 0)) / 4)

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