After an uncharacteristic eighth-place finish in 2016, Tawharu believes the team has what it takes to stay top of the team rankings this year.
"We are going for the win here this week, everyone has been supportive and it has been fun, so we are looking forward to the last three days of the event."
Another surfer stepping up to a senior position this year is Taranaki's Zhana Hutchieson. She surfed to a 13.53-point heat total, coming from third place midway through the heat to take a comfortable victory.
Tawharu and Hutchieson were joined by Raiha Ensor (Mount Maunganui) as winners in the under-18 girls' division.
In the under-16 girls' section, Georgia Wederell (Mount Maunganui) and Saffi Vette (Gis) both won and were joined by Canterbury teammates Estella Hungerford and Tegen Bishop who advanced through their heats in second place.
The afternoon heats comprised some tight encounters in the second round of both the under-18 and under-16 boys' divisions.
Reef Matthews (Tara), Elliott Brown (Dun) and Jared Gebert (Ohope) all surfed to exceptional heat wins posting scores in excess of 15.0 points out of 20.
Gebert won the closest heat of the round advancing alongside Jack McLeod (Dun) who posted 13.27 points to narrowly edge Canterbury surfer Conor McLennan on 12.77 points.
Other heat winners included Sonny Rapira - Martin (Tara), Lee Ririnui (Mount Maunganui) and Tom Norton (Whangarei) who all advanced through to the quarter-finals.