Event: Division 2

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Opponent Rating Result
Herbert Lockwood 133 ½ - ½
T Noel Stewart 150 0 - 1
Owen R Robson 136 ½ - ½
Tom, T Werner 0 1 - 0
Tom Brown 181 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

200 = (600 + 400 * (2 - 1)) / 5)

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