Event: Eastman Cup

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Opponent	Rating	Result
Jake Stones	1808	½ - ½
Maria-Alexandra Ciocan	2058	0 - 1
Jake Stones	1808	1 - 0
Alastair P Mills	1863	½ - ½
Matthew J Hortin	1937	½ - ½
Jonathan Rubeck	1880	0 - 1
Cal Cashin	1658	1 - 0
John W Bass	1961	0 - 1

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

1822 = (14973 + 400 * (2 - 3)) / 8)