Event: Div1

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Opponent	Rating	Result
Daniel JS Sullivan	180	0 - 1
D Martin Howard	173	1 - 0
Anthony L Natt	169	½ - ½
Peter M Collins	158	½ - ½
Luke S Alldread	150	1 - 0
Steven J Burke	175	½ - ½
Mike Alcock	173	0 - 1
Ian S Kingston	178	½ - ½
Simon N Gilmore	188	0 - 1
James R Shore	138	1 - 0
Derek A Jarvis	168	½ - ½
Michael J Alderson	175	0 - 1
George Peters	145	1 - 0
Geoffrey D Brown	150	½ - ½

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

166 = (2320 + 400 * (4 - 4)) / 14)