Event: Div 4 - Athenaeum Cup

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Opponent	Rating	Result
James Alex Brown	1527	0 - 1
Tom R W Edwards	1444	0 - 1
Steve Daykin	1380	0 - 1
Mattiangelo D'Agnese	1582	0 - 1
Lance Kennedy	1491	½ - ½
Matt Wardman	1634	0 - 1
Brian Crofts	1591	0 - 1

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

1178 = (10649 + 400 * (0 - 6)) / 7)