Event: Cambs Division 1

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Opponent	Rating	Result
Colin Emery	1779	0 - 1
James Conlon	1568	1 - 0
Claude Masseron	1678	1 - 0
Declan Rice	1747	0 - 1
Chris J Russell	1562	0 - 1
Neil Chedd	1550	0 - 1
Colin Emery	1779	0 - 1
Claude Masseron	1678	0 - 1

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

1468 = (13341 + 400 * (2 - 6)) / 8)