Event: Silver Rook

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Opponent	Rating	Result
Mohammad Abdulhamid	0	½ - ½
David Summerland	1495	0 - 1
William Peacock	1243	1 - 0
Ben Deith	1638	1 - 0
Elinor Gorrell	1688	0 - 1
Ian Haley	1666	1 - 0
Isaac Fossey	1636	0 - 1
Peter Catt	1771	0 - 1
Olegs K Kungurovs	1803	0 - 1

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

1349 = (12940 + 400 * (3 - 5)) / 9)