Event: John Cutting Trophy

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Opponent	Rating	Result
Paul Verrall	1370	0 - 1
Fredy Reber	1169	0 - 1
Bayley Simpson	1212	0 - 1

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

850 = (3751 + 400 * (0 - 3)) / 3)