Event: League Division Two

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Opponent	Rating	Result
David Riley	1593	1 - 0
George Salmon McConnachie	1300	0 - 1
Samuel Bass	0	1 - 0
Howard Jones	1503	½ - ½
David Riley	1593	1 - 0
Simon Weaver	1502	½ - ½
Mike J Johnson	1557	0 - 1

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

1350 = (9048 + 400 * (3 - 2)) / 7)