The 24th edition of Mainova IRONMAN Frankfurt European Championship marked the ninth stop of the 2026 Experience Oman Pro Series. With high weather warnings in place across Germany, the race was adjusted in the interest of athlete health and safety. The event retained the full 3.8km swim, while the bike course was shortened to 125km and the run reduced to a half marathon (21.1km)
The day delivered tight and exciting races across all three disciplines, featuring a mega pack out of the swim, a career defining bike performance from Frenchman Nathan Guerber who led the 125km from start to finish, and Norwegian domination on the run course.
The ROKA swim course took place in the Langener Waldsee lake, with the skyline of Frankfurt city centre in the backdrop. South Africa’s Jamie Riddle took early control, setting the tone at the front of a 26-man pack as the field approached the Aussie exit,1.5 kilometres into the swim. Riddle briefly eased his pace as he jogged around the exit, gesturing to those behind him to take their turn on the front heading into the second lap.
The lead group featured a strong lineup of contenders, including Stornes, France’s Vincent Luis, Great Britain’s Kieran Lindars, Germany’s Jan Stratmann and Wilhelm Hirsch, Kacper Stepniak (POL), and Ditlev.
On the second loop, Stepniak and Hirsch took turns at the front as the 20-plus pack remained largely intact. As they pushed back toward the swim exit, Riddle once again asserted himself at the front and led the field out of the water in a time of 49:16.
On the ZOOT bike course, it was France’s Nathan Guerbeur who made the first decisive move of the day. After exiting the water at the back end of the lead group, Guerbeur wasted no time in pushing to the front and establishing himself as the race leader. Behind him, a chase pack of Riddle, Stornes and Iden formed.
By the halfway point, Guerbeur had opened up a 27-second gap over the chase gap, while pre-race favourites Luis and Ditlev were over five minutes back as they worked to close the deficit.
Inside the final kilometres, the chase began to stretch, with Stornes making a move past Iden with around 12 kilometres to go. At the front, Guerbeur faced challenges, losing his bottles and encountering an issue with his aerobars. Despite this, by time he reached T2, Guerbeur had extended his lead to over one minute ahead of Stornes, Iden, and Riddle.
Stornes, Iden and Riddle came into T2 together, however a mix up with his transition bag meant Riddle had to go back and swap it, meaning it was Iden who was first onto the run from that trio. Stornes wasted no time to show off his dominant run form, as he set his sights on Guerbeur, reducing his 90 second deficit to under a minute by five kilometres in. One kilometre later, he made his pass and moved into the lead. Despite the soaring temperatures, Stornes remained cool and calm, not looking back once as he ran a blistering 1:12:19 half marathon to take the win.
Behind him, Iden began to distance himself from Riddle and close down the gap to Guerbeur. By the 10-kilometre mark, Iden had passed the Frenchman as Guerbeur’s efforts on the bike had clearly began to take their toll.
Further back, Benito López was mounting a charge of his own. Despite starting the run with a deficit of three minutes and 40 seconds to the leaders, López showcased his renowned run pedigree, slicing through the field and soon becoming the next athlete to reel in Guerbeur.
As the race moved into the final stages, Stepniak ran strongly into fourth place, while Luis worked his way up into fifth. Riddle, who was unable to quite bridge back to Guerbeur crossed the line in seventh—securing his qualification to the IRONMAN World Championship in Kona.
Further down the field, Magnus Ditlev finished in 11th place, capturing the final men’s qualifying slot to the Big Island and rounding out a hot and exciting day of racing in the ‘City of Champions’.
Stornes said: “On the first hour on the bike, they were pushing quite a lot. I struggled a little bit on the swim with my stokes after my crash in camp two or three weeks ago. The bike felt a little chaotic n the first hour and then I settled into it… I settled into my own pace on the run..I’m happy with my race and felt in control.”
Top Five Male Professional Results
Note: Course was adjusted due to heat levels (3.8km swim, 125km bike, 21.1km run)
1 Casper Stornes (NOR)
Swim: 49:32
Bike: 2:43:03
Run: 1:12:19
Total: 4:50:23
2 Gustav Iden (NOR)
Swim: 49:46
Bike: 2:43:18
Run: 1:14:55
Total: 4:52:53
3 Antonio Benito López (ESP)
Swim: 49:30
Bike: 2:45:32
Run: 1:14:37
Total: 4:54:47
4 Kacper Stepniak (POL)
Swim: 49:18
Bike: 2:45:52
Run: 1:15:01
Total: 4:55:15
5 Vincent Luis (FRA)
Swim: 49:23
Bike: 2:47:22
Run: 1:13:56
Total: 4:55:46
The Experience Oman IRONMAN Pro Series stays in Europe for the IRONMAN 70.3 Swansea on July 12.
