Before you enter Sidekick Tri - (Swim 750m; Bike 20km; Push/run 5km)

Important information – Please read before booking

Sidekick Tri is an exclusive event created for Superhero Series Super Partners, Corporate and Charity Friends.

To take part, all participants must be registered as one of the above.
If you are not currently a Super Partner, Corporate or Charity Friend but would like to take part, please get in touch before booking to discuss eligibility.

Registration

£ 73.29

Solo entry £ 70.00
T-shirt, medal & other goodies included with ticket
+ Admin fees £ 3.29
Linked to Charity: Superhero Sport Foundation

£ 104.70

Team of 3 £ 100.00
Team of 3 ( 2 x Ages 18 - 100, 1 x Ages 15 - 100 )
+ Admin fees £ 4.70
Linked to Charity: Superhero Sport Foundation

Make A Donation

Even if you're not taking part in Sidekick Tri - (Swim 750m; Bike 20km; Push/run 5km) you can still do your part for a good cause by making a donation.
Donate Now!

About Sidekick Tri - (Swim 750m; Bike 20km; Push/run 5km)

Superpower Superheroes with a super-sized fundraising mission

Sidekick Tri is a new mission brought to you by the team behind the Superhero Series, powered by Marvel.
Designed for everyone, it gives participants the chance to take on a Paralympic distance triathlon, either solo or as part of a team of three, all while fundraising.

Created exclusively for Superhero Series Super Partners, Corporate & Charity Friends, Sidekick Tri takes place on 14 August 2026 at Dorney Lake, opening the Superhero Tri ’26 weekend.

Not currently a Super Partner or Charity Friend but want to take part? We’d love to talk — get in touch to find out more.

If you've registered on race-nation.co.uk before, sign in here

Contact Sidekick Tri - (Swim 750m; Bike 20km; Push/run 5km)

Email: hello@superheroseries.co.uk
Website: https://superheroseries.co.uk
Phone: 07394 663540

Superhero Sport Foundation

Registration Number: 1172679