Event: Cambs Division 2

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Opponent	Rating	Result
Michael R English	1405	½ - ½
Peter Baddeley	1622	1 - 0
John Greiller	1707	½ - ½
Christian Bengtson	1548	1 - 0
Matthew Cooper	1746	1 - 0
Alan Brookbanks	0	1 - 0
Michael R English	1405	½ - ½

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

1576 = (9433 + 400 * (4 - 0)) / 7)