Event: Division 2

Opponent Rating Result
Andy Reynolds 1746 0 - 1
Paul J Massey 1709 0 - 1
John F Lambert 1735 ½ - ½
T Jeff Povall 1699 ½ - ½
Brian Butterworth 1545 ½ - ½
Tom EC Webb 1629 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1544 = (10063 + 400 * (0 - 2)) / 6)

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