Event: 53rd Cotswold Major

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Opponent	Rating	Result
Mike Hollyman	1532	1 - 0
Arun Broadley	1707	0 - 1
Nick I Waterman	1638	½ - ½
Thomas Merchant	1503	0 - 1

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

1495 = (6380 + 400 * (1 - 2)) / 4)