Search
shop

Challenge Roth 2025: Laidlow prompts groundbreaking move as Race Ranger data will be made public

It's going to be a significant weekend for triathlon and anti-drafting technology as all the data will be put in the public domain
News Director
Last updated -
Get the ultimate guide to destination racing

For the first race ever, Race Ranger data will be made public after Challenge Roth on Sunday (6 July).

The groundbreaking move was proposed by 2023 IRONMAN World Champion Sam Laidlow in Friday evening’s athletes briefing.

Some data from the age-group races were shared with the media after Challenge Wanaka earlier this year but that was done anonymously and also not put in the public domain.

Advertisement

Laidlow the catalyst

This is a significant step for the pro ranks though and a press release from Challenge Roth outlined how it came about and hailed it as a “clear step towards greater transparency and fairness in triathlon”.

The release read: “The initiative came from none other than Ironman world champion Sam Laidlow. He asked why the system’s data was not actually made public.

“Race director Felix Walchshöfer picked up on the idea and asked the professional athletes whether they wanted to vote on it together and whether there were any valid reasons against publication.

“The answer: contemplative silence followed by unanimous applause. A strong signal for fair competition in racing.”

Sam Laidlow Challenge Roth press conference 2025
Sam Laidlow at the 2025 Challenge Roth press conference [Photo credit: Challenge Roth]

Mutual respect

“We want to promote transparency and fairness in sport,” added Walchshöfer, who says he deliberately left the decision in the hands of the professionals.

“The fact that everyone is pulling in the same direction here is a strong signal and it’s groundbreaking for triathlon. Roth is once again leading the way.”

After being the catalyst for the move, Laidlow – who makes his racing return this weekend – said to Walchshöfer: “The small decision you just made is going to make a huge change to fair racing. You are a genius. Watch the other events follow what you do.”

Advertisement

What is Race Ranger?

So what will we actually get to see after Sunday’s races?

Race Ranger is a state-of-the-art electronic system for distance control in triathlons. It was developed to support rule-compliant behaviour on the bike course, in particular to prevent drafting (unauthorised slipstreaming).

The system consists of two compact devices that are attached to the front and rear wheels of the bike. Using precise sensors, they continuously measure the distance between athletes. Feedback is provided in real time via coloured LED signals, allowing athletes to immediately see whether they are maintaining the required minimum distance of 12 metres.

At Challenge Roth this year, Race Ranger will be used again in the professional field after its debut last year. By publishing the collected data after the race, fans, media and athletes can see how fair the race was.

Jonathan Turner
Written by
Jonathan Turner
Jonathan Turner is News Director for both TRI247 and RUN247, and is accustomed to big-name interviews, breaking news stories and providing unrivalled coverage for endurance sports.  
Discover more
tri-fit vortex tri suit review
TRI-FIT VORTEX tri suit review – race day approved performance
Maja Stage Nielsen Kat Matthews Jocelyn McCauley IRONMAN Texas 2023 podium photo credit IRONMAN
PremiumRacing to keep up: Is social media making us train harder?
Cadomotus chronos aero triathlon cycling shoes
The triathlon cycling shoe that promises a 10-watt saving: Cadomotus Chronos Aero triathlon cycling shoes review
Wahoo ELEMNT RIVAL
PremiumTraining to heart rate vs power on the bike
Caroline Pohle Lena Meissner ironman 703 jonkoping sprint 2025
PremiumHow to pace a triathlon to leave it all out there WITHOUT blowing up
latest News
Hayden Wilde finish line T100 London 2025
Hayden Wilde’s ‘DIABOLICAL’ race schedule as he chases both T100 and WTCS titles
Vincent Luis San Francisco 49ers tri suit 2025
Triathlon great Vincent Luis plotting T100 comeback after injury setback
Alistair Brownlee Olympics Triathlon London 2012 Podium Gold
It’s exam results time – and Olympic legend Alistair Brownlee nails the careers advice
Jess Learmonth T100 Vancouver joy 2025
Jess Learmonth is still daring to dream after childbirth and injury comebacks
Marten Van Riel finish line T100 Dubai 2024 photo credit PTO / T100
Van Riel faces World Championship fitness battle after revealing injury and mental health concerns
triathlon on your terms
Never miss out with our triathlon alerts & digest. Get a dose of adventure & inspiration with Boundless.
The 247 Group

The home of endurance sports

TRI247-LOGO_Primary-Black_RGB-1

CHOOSE YOUR MEMBERSHIP TO BECOME PART OF SOMETHING EPIC

We’re on a mission to elevate the world of endurance sport, becoming your go-to resource for expert training tips and inspiration, unbiased reporting and creating a platform for grassroots voices. But we can’t do it without you on board! Choose a TRI247+ membership option below and become part of something epic.

All plans include a 7-day free trial

£7.95/month

Unlimited access. No ads. A whole library of tips, advice and inspiration at your finger tips, and the chance to shape the future of triathlon journalism.

100+ new articles/month

You’ll also gain access to our other premium websites:

Have an account? Sign in

All plans include a 7-day free trial

£47.95/year
£95.40/year

50% Discount

100+ new articles/month

Unlimited access. No ads. A whole library of tips, advice and inspiration at your finger tips, and the chance to shape the future of triathlon journalism.

You’ll also gain access to our other premium websites:

Have an account? Sign in

Share to...