Event: 53rd Cotswold Major

Opponent Rating Result
Yijun Wang 1489 ½ - ½
James Yiming Wang 1424 1 - 0
Qixuan Han 1721 ½ - ½
Dave J Williams 1646 ½ - ½
Arun Broadley 1707 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1677 = (7987 + 400 * (1 - 0)) / 5)

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