Event: Div 2 (Cracknell 23)

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Opponent	Rating	Result
Karl Bennett	1452	0 - 1
Frederick Fairhurst	1374	0 - 1
Steve Fairhurst	1161	1 - 0
Adam Majewski	1385	0 - 1
Jude Cureton	1486	0 - 1
Jack Carmody	1275	0 - 1
Stuart Sumpter	0	½ - ½
Matthew Graeme	1003	1 - 0

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

992 = (9136 + 400 * (2 - 5)) / 8)