Event: Clough (Handicap)

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Opponent	Rating	Result
Stehen Burton	109	½ - ½
Nigel Redmond	124	0 - 1
Angel Gonzalez	0	0 - 1

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

-189 = (233 + 400 * (0 - 2)) / 3)