Event: Clough (Handicap)

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Opponent	Rating	Result
Graham N Redmond	150	0 - 1
Paul Greenwood	101	0 - 1
Peter D Ward	130	1 - 0

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

-6 = (381 + 400 * (1 - 2)) / 3)