Magnus Ditlev Sets World Record at IRONMAN Florida
Denmark’s Magnus Ditlev crossed the finish line in 7:19:17 at IRONMAN Florida, shattering the previous world-best full-distance triathlon time previously held by Kristian Blummenfelt at 7:21:12.
The record-breaking performance completely reshuffles the record books for professional long-distance racing. Ditlev bounced back decisively from a difficult day at the IRONMAN World Championship in Kona, outpacing the previous world-best mark of 7:21:04 set by Sam Laidlow at Challenge Roth earlier in the year.
How Ditlev Built His Historic Margin
The foundation of Ditlev’s win was established early on the swim course. Great Britain’s Andrew Horsfall-Turner exited the water first in 47:42, closely followed by Emil Holm and American Ben Kanute, while Ditlev emerged just 10 seconds back.
By the halfway point of the bike leg, Ditlev had pulled over six minutes clear of a chasing group containing Rudy Von Berg and Kanute. He ultimately logged a bike split of 3:51:16, breaking Cameron Wurf’s previous full-distance best of 3:53:32 set at IRONMAN Texas in 2025.
Entering the second transition with an 11-minute advantage, Ditlev capped off his day with a 2:33:31 marathon. He secured the victory by a margin of over 14 minutes ahead of the rest of the professional field.
Rudy Von Berg claimed second place with a time of 7:33:25, using a strong run split of 2:37:09 to distance himself from his competitors in the second half of the marathon. American Matt Hanson delivered a sub-2:30 marathon split of 2:28:07, charging past Sam Long to round out the podium in third place with a 7:35:48 overall time.
Alanis Siffert Dominates Women’s Race
In the women’s competition, Switzerland’s Alanis Siffert secured her Kona qualification for next October with a dominant 8:07:37 finish time. Siffert stayed near the front alongside Great Britain’s Holly Lawrence out of the water, where both led the early stages of the race.

Lawrence pulled ahead briefly during the bike leg, reaching T2 with a lead of just under two minutes. Siffert erased that deficit within the first four miles of the marathon, cruising clear to break Sky Moench’s 2023 course record of 8:22:28.
Siffert’s finishing time stands as the fourth-fastest full-distance time in history. The performance also makes her the fastest Swiss athlete over the distance, eclipsing Daniela Ryf’s 8:08:21 mark set at Challenge Roth in 2023.
NEW WORLD RECORD 7:19:17 MAGNUS DITLEV 🇩🇰 Ironman Florida 3.8km Swim 180km Bike 42.2km Run
Holly Lawrence finished second in 8:23:56 to secure her own spot in Kona, while Germany’s Laura Jansen took third place in 8:32:21 to claim the final qualification slot.
Florida Course Records
Athletes shattered multiple benchmarks across the day’s events. The following breakdown details the new records set in Florida.
| Category | Leg | New Record | Athlete | Country | Old Record | Old Record Holder | Improvement |
|---|---|---|---|---|---|---|---|
| Men | Overall | 7:19:17 | Magnus Ditlev | DEN | 7:34:41 (2023) | Rudy von Berg | −15:24 |
| Men | Bike | 3:51:16 | Magnus Ditlev | DEN | 3:59:02 (2023) | Magnus Ditlev | −7:46 |
| Men | Run | 2:28:07 | Matt Hanson | USA | 2:34:06 (2023) | Matt Hanson | −5:59 |
| Women | Overall | 8:07:37 | Alanis Siffert | SUI | 8:22:28 (2023) | Skye Moench | −14:51 |
| Women | Run | 2:45:03 | Alanis Siffert | SUI | 2:53:26 (2011) | Jessica Jacobs | −8:23 |