Event: Belper Club Championships

Opponent Rating Result
Ronald S Harrison 1540 1 - 0
Sebastian Castro 0 ½ - ½
Alan F Downham 1923 ½ - ½
Alex Webster 1900 ½ - ½
Vaughan WG Smith 1593 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1551 = (6956 + 400 * (2 - 0)) / 5)

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