Event: 53rd Cotswold Major

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Opponent	Rating	Result
Alan E Gentry	1761	½ - ½
Derek F Edwards	1698	½ - ½
Reya Li	1706	0 - 1
Martin C Jones	1717	0 - 1
Evan Li	1558	½ - ½

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

1528 = (8440 + 400 * (0 - 2)) / 5)