Event: 54th Cotswold Minor

Opponent Rating Result
Hazel Welch 1187 1 - 0
Aiden Griffiths 1401 0 - 1
David Purle 1488 1 - 0
Siyuan Ou 1452 1 - 0
Stephen Williams 1598 ½ - ½
David Marshall 1484 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1635 = (8610 + 400 * (4 - 1)) / 6)

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