Event: BCL Division 2

Opponent Rating Result
Peter S Gill 1650 ½ - ½
Nigel B Walker 1472 ½ - ½
Qasim Zaidi 1250 1 - 0
George Ward 1780 0 - 1
Richard C Keane 1550 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1460 = (7702 + 400 * (1 - 2)) / 5)

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