Event: BCL Division 1

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Opponent Rating Result
Michael T Botteley 1949 1 - 0
Stephen C Ledger 2125 ½ - ½
Kevin J Williamson 1847 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2240 = (5921 + 400 * (2 - 0)) / 3)

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