With top spot in the seedings under her belt, Mount Maunganui surfer Rahia Ensor joins a wealth of the country's top junior surfers eyeing one last big result before the winter months set in.

This weekend's Backdoor GromBash, held at Raglan, sees Ensor head into the Under-20 Girls Division as the hot favourite, having placed in all three finals this summer.

Mount Maunganui's Rahia Ensor. Photo: Col/surf2surf.com

With surfers being able to enter multiple divisions at this event, there are also a number of young stars testing their mettle in the division, and these youngsters will give the likes of Claudia Fraser (Piha), the Sansom twins (Albany) and Dayna Story (Gisborne) some sturdy opposition.

The final event also sees World Surf League campaigner Ella Williams get the chance to compete on the domestic circuit for the first time this year.

The Whangamata surfer has been busy all summer chasing points in the WSL Qualifying Series.

However, she has a brief break from international events and has opted to compete at the Backdoor GromBash this weekend in the build up to events offshore.

Williams will compete in the Under-20 Girls Division against one of the biggest fields of surfers the junior events have seen this year.

Likewise, in the Under-20 Boys Division, Piha's Elliot Paerata-Reid will fly back into the country tomorrow morning and head straight down to Raglan for the event.

Paerata-Reid has been competing on the WSL Australasian Pro Junior Series, taking in two events held in Tahiti in recent weeks.

He placed fifth at the most recent event and currently sits in eighth place on the overall rankings, hoping to push into the top five with one event remaining in Australia to be held during July.

A top five finish is enough to qualify for the Pro Junior World Championship as a member of the Australasian Team.

Paerata-Reid has only managed to contest one event in New Zealand this summer in between his international commitments. That event saw him take a big win at his home break in Piha.

He'll will be joined by number one seed Harrison Whiteside (Christchurch), as well as Tauranga's Callum Chuter, the Mount's Kehu Butler and Raglan surfer Taylor Hutchison.

Hutchison won the Under-17 Boys Division in 2014 and has honed his skills on the Raglan point breaks and Manu Bay in particular, so will be one of the surfers to look out for come Sunday afternoon.

The Backdoor GromBash also plays host to Under-17 and Under-14 Divisions with a massive line up of groms competing this weekend.

Conditions are expected to be small on Saturday morning, but building throughout the day and in to Sunday, with excellent conditions forecast for the final day.