Nathan Outteridge and Team Japan continued their mastery of light wind to win the France SailGP on Sunday and vault above former standings leaders Australia.

Outteridge beat US skipper Jimmy Spithill and Spain's Phil Robertson in the podium race to clinch his second regatta victory of the season.

Outteridge, an Olympic gold and silver medalist as well as an America's Cup veteran, won in light air in Italy in early June.

With defending SailGP champions Australia and Britain doing poorly in this regatta, there was a shake-up in the season standings.

Team Japan vaulted into the lead with 37 points, followed by the United States with 35, Australia 35, Britain 34, Spain 31, New Zealand 30, Denmark 28 and France 27.

Skipper Tom Slingsby's Team Australia won the previous two regattas and led Britain by two points in the season standings but were beset by technical problems on the French Riviera and finished last for the second time in four regattas.

Slingsby skippered the Aussies to the inaugural championship in 2019 and the $1 million ($A1.4m), winner-take-all prize.

Outteridge got help from wing trimmer Chris Draper to manage the new wingsails that tower 29 meters (95 feet) and help give the foiling 50-foot catamarans better performance in light air.

"I think we have done a little bit more training with these 29-meter wings, but not myself personally," said Outteridge, who added that he had only an hour working with the new wing after a regatta in Denmark last month.

"Chris had done three days before that so we knew what we were in for in terms of it being bigger and heavier. Yes, you can generate more power, but getting foiling wasn't really any easier."

Outteridge said the win was nice but "at the end of the day it's practice for the real one at the end of the season - that really matters with the million dollars at stake."

There are four more regattas, including the season finale in San Francisco on March 26-27 when the championship and $1 million prize will be decided.