There were 14 entrants in the combined silver and bronze fleet.
Winds were light to moderate and the venue hosted a well-run, enjoyable event, with courses varied to suit conditions and including America's Cup-style racing.
This result elevates both the Millar youngsters into the Gold Fleet for next year, with other events planned in the open skiff calendar.
The open skiff is the go-to boat for young sailors to get out in the water and have fun and competition.
Russell Coutts is a driving force in the open skiffs and fleets are expanding around the country.
Most events offer coaching sessions and the nature of the events allows the tail-enders to have on-the-water coaching while they are racing.
New Zealand open skiff sailors, including Coutts's son, have already won world championships in the boats.
Jake and Lucy will compete in the Gisborne Financial Services Poverty Bay Championships this weekend and they hope additional skiff sailors will be in Gisborne to ply the waters of Poverty Bay alongside fleets of Lasers and perhaps trailer yachts.