Event: Book Prize - Premier 23/24

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Opponent	Rating	Result
Graham Stuart	1763	0 - 1
Cary Xie	1597	0 - 1
Iwan Cave	2168	0 - 1

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

1443 = (5528 + 400 * (0 - 3)) / 3)