Event: Book Prize - B 24/25

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Opponent	Rating	Result
Daniel Phillips	1441	1 - 0
Robert Sims	1505	1 - 0
Sam J Murphy	1543	1 - 0

performance = (sum(opponents ratings) + 400(wins-losses)) / games

1896 = (4489 + 400 * (3 - 0)) / 3)