Event: Division 1

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Opponent	Rating	Result
Steven JL Rix	1988	½ - ½
James M Robinson	1860	½ - ½
Gavin James Hughes	1962	½ - ½
Paul Bancroft	1989	0 - 1
Edgar Wilson	1979	0 - 1
Czeslaw (Sebastian) Ponulak	1953	0 - 1
Malcolm P Kingsley	1886	0 - 1
Simon C Moth	1818	1 - 0
Graham J Kershaw	1712	½ - ½
Arunas Gedvilas	1883	½ - ½

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

1783 = (19030 + 400 * (1 - 4)) / 10)