I thought the question was answered -
Solo = nobody on the boat but you.
Non-stop = not touching land or anchoring
anywhere after departing your starting point until you return to you starting point. Anchoring
is touching land, just ask your anchor
. I am unsure if touching with your keel
would disqualify for non-stop.
Un-assisted = no shore crews, or assistance, replenishing supplies or parts
between departure and arrival.
-- As was explained by Jessica W to qualify as "around the world" you must include one crossing of the equator. Which is why she has to head
north and then back south again. Maybe with "global warming and the melting of the North Pole Ice Cap somebody will be able to sail north over the top and back south again skirting around Antartica then home. That would be new and different.