Event: Kenneth Appleby

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Opponent	Rating	Result
Stephen Forbes	115	0 - 1
Steven Hodgson	79	½ - ½
Rashpal S Potiwal	68	0 - 1

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

-179 = (262 + 400 * (0 - 2)) / 3)