Event: IM Brown

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Opponent Rating Result
Karim Khan 145 0 - 1
Alec Grice 138 1 - 0
Roger Keely 177 0 - 1
Howard Brears 107 1 - 0
Chris R Tinker 131 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

60 = (698 + 400 * (2 - 3)) / 5)

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