Doubling as the opening of Triathlon Tasmania's state series, the event's stocks will be bolstered by Commonwealth Games mixed relay gold medallist Jake Birtwhistle.

The 25-year-old will be racing in a team, with the president of the Launceston Triathlon Club and race director Matt Wheatley grateful for his repeat attendance.

"It's great for the sport and obviously it's great for the young kids, they can have their photo taken with Jake and he's obviously a very sociable young man," he said

ELSEWHERE IN SPORT

"[Elsewhere] Hayden Armstrong from Hobart, who is very much a champion athlete, he will be the man to beat in the long distance race.

"He's by far and away one of the best athletes in the state and always one to watch out for."

The Olympic distance - 1.5km swim, 40km ride and 10km run - headlines the program, which gets underway at 8.30am, while sprint and super sprint races are available for eager athletes with those aged 7-12 able to compete in the modified Trystars event (100m swim, 1km run).

Around 100 competitors have entered, with registration - which can be accessed through the club's Facebook page - set to close on Friday afternoon.

After being unable to complete the 2019-20 season due to COVID-19, Wheatley is glad to start the season and said a greater focus will be put on hygiene, spacing, race briefing and safety.

"For the best part of six months it absolutely knocked the socks of it," he said of the virus and its impact on triathlon.