Sailing: New Zealand won't change approach for Sail Grand Prix series decider at San Francisco

New Zealand head into the Sail Grand Prix series decider as the most penalised team, but don't expect them to change their approach at San Francisco.

With only Australia ranked above them, the Kiwis are expected to book their spot in the three-boat final.

Their trans-Tasman rivals have an 11-point lead, and have already guaranteed their passage to the winner-take-all showdown.

Great Britain and France are NZ's biggest threat to making the final, but can progress with two good first-up fleet race results.

But despite holding a four-point advantage over nearest rival France, the competition's most penalised team won't be resting on their laurels.

"You don't want to dock yourself points, but it's hard to not push as well, the fleet is so competitive, that if you take it easy, you end up at the back pretty quickly," NZ driver Peter Burling told Newshub.

"So, for us, it's business as usual tomorrow, and going out there to try and get three solid scores on the board.

"It will be interesting to see what the others are doing, whether anyone has a crack at us, and whether GBR and France end up in a big match race.

"But it's going to be a fun weekend to see how it all unfolds, and looking forward to getting into it."

The nature of the competition means one good race could snatch a win from unlikely circumstances.

Canada's triumph at the inaugural NZ Sail GP at Lyttelton to stun the hosts is just another example of how quickly the tide can turn.

"Although it's an interesting format, with it all coming down to one shootout for the top three as to who wins it, hopefully, the best team wins it on the day," Burling said.

"You've got to play to the rules, that's what it has been ever since Sail GP started, it creates a bit of variability and makes it anyone's game.

"It's very hard to end up that far ahead that you can say you're easily going to win it, but it just means you have to go out and execute one good race on the one opportunity you get.

"As a crew, we prefer to carry good form into it. Generally, if you carry good form, it gives you the confidence to continue that way.

"But in saying that, in Lyttelton, Canada didn't have the best of events, scraped through, and then went out and had their best race there in the final.

"Once it gets into the final, it's anyone's game and it's just whichever team puts together the best race."