"It was going pretty well for me in the first race but I dropped back on the second beat when the wind went far left. In the second race I had a good recovery after not that great a start and managed to come away with the bullet which was a really nice way to finish the day.
"There are a couple of guys who are doing really well but there's plenty of racing still to go. My starts aren't going great but, after that, I feel like I'm sailing all right so a couple of good races and I could be in with a chance. It's pretty tricky racing and a long way to go."
Tauranga sailors Andrew McKenzie (12th) and Tom Saunders (15th) improved in the highly-competitive Laser fleet, with both recording top-four results.
Dunning Beck has won a couple of World Cup regattas but Gamagori represents the first major regatta with Gunn after the pair teamed up earlier this year. They have been encouraged by their results so far, picking up a win in the third race of the day, but were also disqualified from the first race for being over the start line.
Isaac McHardie and William McKenzie are another young crew and settled into fifth after day two, backing up their race win on the first day with three top-10 results and a 15th which is their discard as their worst result. Close behind are Josh Porebski and Trent Rippey (Tauranga) in seventh.
There was only one race in the men's 470, with Paul Snow-Hansen and Dan Willcox finishing ninth in the 24-boat fleet and they are now fifth after three races. It's tight at the top, with only two points separating the top three boats, including multiple world champions Mathew Belcher and William Ryan (Australia) in third.
Susannah Pyatt had a disappointing day in the Laser Radial and dropped to 33rd overall.