Event: St Andrews Club Championship

Opponent Rating Result
Lester Jones 1521 ½ - ½
Giles Dunn 1675 1 - 0
John Thackray 1966 0 - 1
Andrew D Bettley 1799 0 - 1
Stephen Crow 1840 0(def) - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1640 = (6961 + 400 * (1 - 2)) / 4)

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