Event: DCL Div 2

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Opponent	Rating	Result
Chris JP Leeson	143	0 - 1
Julian C Cherryson	138	1 - 0
Michael D Wiles	132	0 - 1
Chris JP Leeson	143	1 - 0
Julian C Cherryson	138	0 - 1
Stephen M Pollyn	140	0 - 1
Richard W Ursell	142	0 - 1
Stewart R Milburn	130	1 - 0

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

38 = (1106 + 400 * (3 - 5)) / 8)