Event: Division Four

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Opponent	Rating	Result
Peter I Thompson	181	½ - ½
Robert Marks	134	1 - 0
Anthony Stokes	135	½ - ½
Peter L Loach	129	1 - 0
Sam A Bradley	134	1 - 0
David Waud	134	1 - 0
Will Vout	122	½ - ½
Michael T Jones	0	0 - 1

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

271 = (969 + 400 * (4 - 1)) / 8)