Event: Derbyshire Individual

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Opponent	Rating	Result
Matthew Bubis	135	½ - ½
Graham J Pace	112	½ - ½
Fred Biles	99	0 - 1
Maurice J Hill	150	1 - 0
Stephen G Wootton	127	0 - 1

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

45 = (623 + 400 * (1 - 2)) / 5)