Event: Open Club Standard

Opponent Rating Result
Graham J Ashcroft 1959 0 - 1
Geoffrey Pennington 1764 ½ - ½
Becky Kerton 1462 1 - 0
Conor Reaney 1868 0 - 1
Hambel M Willow 1784 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1607 = (8837 + 400 * (1 - 3)) / 5)

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