Event: Clough (Handicap)

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Opponent	Rating	Result
Stephen Haggas	98	0 - 1
Nicholas Waite	76	0 - 1
John E Parr	114	1 - 0

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

-37 = (288 + 400 * (1 - 2)) / 3)