Logan Dunning Beck and Oscar Gunn were also pretty satisfied after winning two of their races which helped them climb from 33rd to seventh overall.
With one more day of qualifying before the top third move into gold fleet, the priority is to post consistently good scores, especially as there are a gaggle of teams within striking distance of the leaders.
"We survived the day," Gunn said. "It's just about not throwing it away, really. A lot of people screwed it up today and yesterday so there are a few good guys who aren't in contention any more.
"We tried really hard to throw it away but we haven't yet so we will keep on chipping away and get some more good scores on the board."
Alex Maloney and Molly Meech did mostly that in their first day of racing at these world championships and sit fourth in the 49erFX fleet after four races. They posted two top-three results across their four races and had two other middling scores on a day when some of the favourites struggled.
Americans Paris Henken and Anna Tobias grabbed an early lead ahead of Ida Marie Baad Nielsen and Marie Thusgaard Olsen of Denmark with Singapore's Kimberly Lim and Cecilia Low third.
"I thought we did a lot of things well but we also made some mistakes that are easy to see in hindsight," Maloney said.
The top four teams in the Nacra 17 did a really good job of that in their four races and only one point separates the quartet. Great Britain's John Gimson and Anna Burnet hold a slim lead over compatriots Ben Saxton and Nicola Boniface with Riley Gibbs and Anna Weis of the United States third.
Gemma Jones and Josh Porebski were the best of the Kiwis in 16th. Micah Wilkinson and Erica Dawson are 17th and Liv Mackay and Jason Saunders 20th on a congested leaderboard that shows only 21 points between the top 20 teams.
There's still a long way to go in these world championships, which finish on Sunday, and it will be something of a war of attrition.
The 49ers, in particular, have already had two long days, but Burling and Tuke were relishing the battle ahead.
"It's what you train for, isn't it?" Burling said.
And those two know better than any what it takes to win.