For just their second regatta competing together in a C420-class sailboat, Colleen and Michaela O’Brien certainly put on a show. Following an eighth-place finish in the second race and starting Day 2 of the C420 New Jersey State Championship in second place, the 15-year-old twins finished second, first and second during the final three races and ended up winning the title on a tiebreaker.

“Michaela and I have been racing together for about a month and this is only our second regatta,” said Colleen, who…