Event: Division Three

Opponent Rating Result
Simon A Williams 148 ½ - ½
Peter W Lawrence 132 1 - 0
Chris W Pitt 129 1 - 0
T Giles Stanton 128 1 - 0
John Lee 132 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

454 = (669 + 400 * (4 - 0)) / 5)

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