An international sailing jury will decide today on whether Wild Oats XI will be allowed to keep its title as line honours winner of this year's Sydney to Hobart yacht race.

Investec Loyal who could be declared line honours winner after race officials lodged a protest against Wild Oats XI for failing to report its position via radio when it entered Bass Strait.

Overnight Lahana became the third yacht to cross the finish line, reaching Constitution Dock just after 3:00am AEDT.

The jury is expected to convene at 1:00pm AEDT. Its decision cannot be appealed.

But Wild Oats skipper Mark Richards is confident his boat will secure line honours.

"It's by the book and we actually read the rule over the radio to the race committee," he said.

"It's a misunderstanding and I'm very confident we'll get it all cleared up."

Wild Oats crossed the finishing line shortly after 8:30pm (AEDT) on Tuesday, recording a race time of two days, seven hours and 37 minutes.

Navigator Adrienne Calahan says the crew handled the rough conditions well.

"To get there in one piece, in first place, it's one of the greatest victories we've had," he said.

Investec Loyal crossed the finish line shortly after midnight, about three and a half hours behind Wild Oats XI.