Event: MCA Division 3

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Opponent	Rating	Result
John Pickering	1428	1 - 0
Craig Jones	1298	½ - ½
Craig Jones	1298	0 - 1
James Lee	1483	0 - 1
Michael Gore	0	0 - 1
J Hayes	0	1 - 0
Trevor Shaw	1476	½ - ½
Natasha May	1377	1 - 0
Vlad Gorchev	1559	0 - 1

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

1058 = (9919 + 400 * (3 - 4)) / 9)