Event: Dudley Townshend Trophy

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Opponent	Rating	Result
Ashley Smith	0	0 - 1
Barrie Phillips	87	½ - ½
Mark Vile	78	1 - 0(def)

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

-157 = (87 + 400 * (0 - 1)) / 2)