Triathlon Week: Roth World Record, Hamburg Sabotage

Long-distance triathlon got a new world record in Roth. Hamburg showed a darker side of the sport alongside a dominant short-course weekend. On the domestic front, Bydgoszcz, in Poland, drew close to five thousand athletes. On the gear side, COROS pushed a free update that takes aim at Garmin. Here is what mattered this week.

1. Sam Laidlow breaks the iron-distance world record in Challenge Roth

Sam Laidlow defended his Roth title and set a new world record of 7:21:04, improving on Kristian Blummenfelt’s previous mark of 7:21:12 from Cozumel.

Blummenfelt finished second, in 7:30:15. Third place went to debutant Rico Bogen, who also posted the fastest bike split of the day: 3:54:45, against Laidlow’s 3:54:58. That is an exceptional level for a first start over full distance.

The women’s race went to 24-year-old Alanis Siffert, in 8:09:09, the youngest winner in Challenge Roth history. The Swiss athlete led on the bike and the run, closing with a marathon of 2:45:00. Lucy Charles-Barclay finished second, Kat Matthews third.

2. Matthew Hauser dominates WTCS Hamburg

Matt Hauser won the men’s race for the third year running, in 50:07, beating Vasco Vilaça and Henry Graf with room to spare.

In the women’s race Leonie Périault defended her title, improving her time from last year by 30 seconds to 55:51. Lisa Tertsch was second. In the mixed relay, France took gold and an automatic qualification spot for the Los Angeles Games, fielding Périault, Richard, Lombardi and Coninx.

3. World Triathlon Para Series makes its Hamburg debut

Hamburg hosted the fourth round of the World Triathlon Para Series for the first time. It is an important stop on the calendar, letting athletes test their form against strong competition. The courses through central Hamburg suited fast racing, and the event underlined how quickly the discipline is developing internationally.

4. Julie Derron books her Kona slot at IRONMAN Thun

Julie Derron won IRONMAN Thun, in Switzerland, in 8:42:40, taking a direct qualification spot for the IRONMAN World Championship in Kona.

Derron started well behind swim leader Imogen Simmonds but was unstoppable on the bike and the run, winning by nearly 14 minutes (Simmonds finished in 8:56:27). Julie joins her sister Nina in Kona; Nina had already qualified at Lanzarote.

5. Nearly five thousand athletes at Enea Bydgoszcz Triathlon

Bydgoszcz, in Poland, hosted the 12th edition of its triathlon, drawing close to 5,000 athletes across distances from Super Sprint to half-distance.

On the half-distance course, Piotr Klupczyński was the only athlete to break four hours, in 3:59:56, built on a 1:21:42 run. Barbara Streng won the women’s race. Over the shortest distance, Wiktor Brojerski won in 48:19, ahead of Jan Krakowski and Wojciech Szyp.

6. Investigation into course sabotage at IRONMAN Hamburg

Hamburg police are still investigating an incident on the bike course. Metal tacks and glass fragments scattered along the route caused widespread tyre and tube damage, forcing 300 to 400 athletes to stop and more than a hundred to withdraw completely.

Organisers confirmed the course had been swept before the start, pointing to deliberate action taken during the race itself, near Kirchwerder. Local authorities suspect a link to resident protests against the road closures. Affected athletes were offered free entries to other 2026 races or to the 2027 Hamburg edition, and the incident is already pushing organisers worldwide to tighten security procedures.

7. COROS chases Garmin with a free update

COROS released a major software update for the Pace 3 and newer watches, adding features aimed squarely at its main rival’s strengths:

• Pace Strategy: a race-plan generator built around the course profile, FTP, and a three-day weather forecast broken down by segment.
• Hill Alerts: real-time notifications for climbs and descents, similar to Garmin’s ClimbPro.
• Heart Rate Recovery: tracks the drop in heart rate during rest and exactly two minutes after finishing an effort.

All of these are free. COROS is visibly closing the gap on the market leader, building loyalty without adding hidden subscription costs.

8. Cooling materials arrive on the start line

Mid-July also brought a clear rise in interest in thermoregulation. Triathlon clothing makers, Castelli among them along with smaller, more experimental brands, are pushing race suits built with graphene and UV-reflecting fibres. Combined with aero helmets designed with airflow channels for triathlon cruising speeds, the fight for seconds over iron distance is moving from wind tunnels into thermal labs. This season, the body’s ability to shed heat has become as important as saving watts.