Event: Book Prize - Minor 23/24

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Opponent Rating Result
Geoff Parish 1124 1 - 0
Steve Saunders 1075 0 - 1
Rose Saunders 1043 0 - 1
Ian D Parker 1135 0 - 1
Lee Mundy 1224
performance = (sum(opponents ratings) + 400(wins-losses)) / games

894 = (4377 + 400 * (1 - 3)) / 4)

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