Event: West of England Counties Online Championship

Opponent Rating Result
Alan A Stonebridge 1538 ½ - ½
Steven Martin 1952 0 - 1
Paul Sandy 1615 1 - 0
Kevin D Markey 1458 0 - 1
Stephen D LeFevre 1336 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1420 = (7899 + 400 * (1 - 3)) / 5)

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