Event: Division 2

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Opponent Rating Result
Andrew E James 137 0 - 1
Robert Ashworth 155 ½ - ½
Chris Haynes 137 0 - 1
Stephen Bush 114 ½ - ½
Robert Ashworth 156 ½ - ½
Stephen Bush 112 0 - 1
Ronald C Andriessen 123 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-95 = (934 + 400 * (0 - 4)) / 7)

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