Event: 54th Cotswold Major

Opponent Rating Result
John A Williams 1608 1 - 0
William Yu 1527 ½ - ½
Terry L Brown 1712 ½ - ½
Manel Fernando 1696 ½ - ½
Sam Wood 1668 0 - 1
David I Tipper 1777 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1598 = (9988 + 400 * (1 - 2)) / 6)

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