Event: Open

Opponent Rating Result
Martin P Burrows 2167 0 - 1
Simon E Lazarus 2084 ½ - ½
Alan Agnew 2175 ½ - ½
Andrew J Morley 2076 ½ - ½
Lewis A Turner 2001 1 - 0
Shabir Okhai 2265 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2061 = (12768 + 400 * (1 - 2)) / 6)

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