Event: MCA Division 2

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Opponent	Rating	Result
Arda Ulku	0	0 - 1
Anthony J Pimblett	1754	½ - ½
Joshua Gibbs	1394	½ - ½
Bob Amos	1578	½ - ½
Martin Hargreaves	1477	½ - ½
Joel Bartlett	1815	0 - 1
Adam Morris	1623	1 - 0
John J Grady	1644	0 - 1

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

1311 = (11285 + 400 * (1 - 3)) / 8)