Event: Division 1

Opponent Rating Result
Haroon Majeed 2146 0 - 1
Derek C Pugh 2083 0 - 1
John E Curtis 2022 0 - 1
David Painter-Kooiman 1913 0 - 1
Robert M Ashworth 1935 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1700 = (10099 + 400 * (0 - 4)) / 5)

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