Is this really the longest Non-stop 2-man Dinghy Passage?

Lets not forget Mathew Flinders who surveyed Botany Bay,Sydney harbour and much of south New South Wales in a 10 ft 6 inches dinghy with no one there to rescue him and Bass and one seaman.
They then went off and circumnavigated Tasmania including the discovery of the Bass Straits in a 27 ft 6 inch boat.
 
I guess the many earlier trips failed to meet some criteria of the record. I can guess, but I'd love to know definitively which.
 
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