Event: Deric Cox Trophy

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Opponent	Rating	Result
Amar Adatia	1416	0 - 1
Matthew Helsby	1100	0 - 1
Samy Counder	1064	0 - 1

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

793 = (3580 + 400 * (0 - 3)) / 3)