Event: Division Five

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Opponent Rating Result
Roger Ball 118 0 - 1
Peter JR Oliver 112 0 - 1
Matthew Little 0 0 - 1
Tom Evans 85 1 - 0
Dave Brelsforth 117 ½ - ½
Paul Joiner 76 1 - 0
Martin Hathaway 87 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

28 = (595 + 400 * (2 - 3)) / 7)

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Opponent Rating Result
David Jukes 75 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-325 = (75 + 400 * (0 - 1)) / 1)