Tauranga sisters took the womens's titles at the Canoe Slalom North Island Champs on the Tarawera River in Kawerau.
Ella Nicholas won the K1W and Jane Nicholas the C1W North Island titles.
Ella, who paddles internationally for the Cook Islands, was second after the heats but picked up the pace to put down a flat time of 110.35 plus a 2 second penalty to finish just over 3 seconds ahead of Haylee Dangen, from Tauranga, in the final.
Sister, Jane Nicholas, who is in the NZ team for K1 and C1 took the C1 title by 0.28 seconds from fellow Canoe Slalom BOP paddler, Kelly Travers.
Jane, who finished third New Zealander in K1, said it was challenging having to use a borrowed boat as difficulties continue to present themselves flying with kayaks.