Event: BCL Division 1

Opponent Rating Result
Stephen C Ledger 2125 0 - 1
Adrian MS Matthews 1809 ½ - ½
Eoin Tweeddale 2049 0 - 1
Stephen Law 2000 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1696 = (7983 + 400 * (0 - 3)) / 4)

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