Event: 53rd Cotswold Major

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Opponent	Rating	Result
Ben Carpenter-Friend	1809	0 - 1
Chris Carpenter	1676	½ - ½
James Yiming Wang	1424	0 - 1
Nick J London	1774	1 - 0
Peter Marks	1760	0 - 1
Judd Chidwick	1724	1 - 0

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

1628 = (10167 + 400 * (2 - 3)) / 6)