Event: WDCL Division 3

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Opponent Rating Result
James Gladman 1426 0 - 1
Derrick Clarke 1200 0 - 1
Martyn A Farnworth 1300 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

909 = (3926 + 400 * (0 - 3)) / 3)

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