Nearly 240 competitors of all ages battled it out in the event on Sunday.
Many entrants were from local triathlon, running, cycling and swimming clubs, all competing for individual and team trophies.
Organisers said it was great to see over a quarter of the competitors achieving their first triathlon, some already looking for the next one they can race in.
Ed Slater, race director, said: "The event was made extra special by the support of the marshalls, the enthusiasm of the spectators, and by the support given by Viridian sponsors.
"The medals, T-shirts and trophies all made people smile."
The 2021 Viridian Daventry Triathlon included running, cycling and swimming. It was sponsored by Daventry business Viridian Nutrition and organised by Rugby Triathlon Club.
The 2021 Viridian Daventry Triathlon included running, cycling and swimming. It was sponsored by Daventry business Viridian Nutrition along with independent retailer Sheaf Street Health Store and organised by Rugby Triathlon Club.
The event also saw Viridian’s MD and founder Cheryl Thallon entering for the first time ever as part of a relay team. Aged 59, she began training in January and finished the 5K run in 39 minutes.
Cheryl said: “I’ve spent the last four decades sitting at a desk, and decided this was the year I had to make a proper investment in my fitness. I committed to the ‘Couch to 5k’ programme and registering for the Daventry Triathlon kept me focussed. I’m so proud to be part of the Viridian team, and want them to be proud of me too.”