Event: B&DCL Div 1

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Opponent	Rating	Result
Robert Davenport	127	1 - 0
P Dragi Popovic	148	½ - ½
Edward Barker	177	0 - 1
John P Weatherlake	170	1 - 0
Leonard J Laker	155	0 - 1
James Connor C Forster	172	0 - 1
Richard Smith	146	0 - 1
Mark Littleton	168	0 - 1

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

8 = (1263 + 400 * (2 - 5)) / 8)