Event: NCCA League Division 4

Opponent Rating Result
James Woodburn 1386 0 - 1
Matthew R Perry 1697 0 - 1
Gary Miles 1350 1 - 0
Colin Goodchild 1386 ½ - ½
Mark Nicholls 1421 0 - 1
Paul J Coppard 1264 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1351 = (8504 + 400 * (2 - 3)) / 6)

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