Event: Cambs Division 2

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Opponent	Rating	Result
Richard McMorran	1678	0 - 1
David Bently	1483	1 - 0
Chris J Russell	1562	½ - ½
Gus Stewart	1000	0 - 1
David Bently	1483	1 - 0
Michael Kowalczyk	1422	0 - 1
Chris J Russell	1562	½ - ½
Dmytro Gostiev	1390	0 - 1

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

1348 = (11580 + 400 * (2 - 4)) / 8)