Event: Division A

Opponent Rating Result
Ian R Dutton 2082 ½ - ½
Matthew JE Searles 1933 1 - 0
Mike J Surtees 2188 ½ - ½
Lee P Kay 2019 ½ - ½
Mike J Surtees 2188 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2162 = (10410 + 400 * (1 - 0)) / 5)

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