THE RUN.
The marathon. The pinnacle of road running, and this one starts between four and five hours into the attempt. 42.2 km of flat, fast roads, with time running out and the Pho3nix Sub7, powered by Zwift and Pho3nix Sub8, powered by Zwift records in sight. The marathon will be run on a closed course, with no dead turns, plenty of spectator viewpoints and designed for maximum speed.
THE RUN
How will our athletes fare?

Alistair
Brownlee
Dual Olympic Champion
How many times has Alistair Brownlee dropped the field on the run leg to win? Too many to count. Widely regarded as the best short course triathlete in history, Brownlee always has an extra gear on the run, and his rivals know it. If he gets the pacing right, there will be plenty left in the tank.
More than a match for anyone in the marathon, Kat always delivers a stellar marathon. A blistering 2:49 saw her ru from 5th to 2nd at IM Tulsa in 2021, which came after a course record Sub 3-hour effort at IM Florida in 2020. The question is – just how fast can she go in Germany?
Katrina
Matthews
Two Times Ironman Champion


Kristian
Blummenfelt
Ironman World Champion
If Alistair Brownlee runs like a gazelle, then Kristain Blummenfelt runs like the lion that’s chasing him. Forgoing finesse, Norway’s Sub 7 hope gets it done by digging deeper into the pain than anyone else – you can see it on his face.
The consummate professional, for Nicola Spirig the run is about closing out victories. Involved in two of the most memorable Olympic run legs of all time, including a photo finish in London where she took gold, Spirig knows exactly how far she can push to get the best out of herself on the big stage.
Nicola
Spirig
Dual Olympic Medalist

By the Numbers
FOR THE MEN:
IRONMAN RECORD
PACE
3:41
min/Km
Ironman Tulsa [Denis Chevrot]
PACE
REQUIRED FOR
2:30 TARGET
3:33
min/Km
MARATHON
WORLD RECORD
PACE
2:52
min/Km
[Eliud Kipchoge: 2:01:39]
FOR THE WOMEN:
IRONMAN RECORD
PACE
3:50
min/Km
Ironman UK [Kristin Moeller]
PACE
REQUIRED FOR
2:50 TARGET
4:02
min/Km
MARATHON
WORLD RECORD
PACE
3:10
min/Km
Run
Can it be done?
Sub 2:30 HRS? (Men)
Run
Can it be done?
Sub 2:55 HRS? (Women)
Join us as we defy the impossible
A PHO3NIX FOUNDATION PROJECT
Together we rise
THE LATEST
Sub7 & Sub8 athletes announce the final pacemakers to their teams
Featuring Olympians, world champions and professional marathoners names as pacemakers for Sub7 Sub8 teams
SUB7 AND SUB8 RECORD ATTEMPT OPTS FOR SPEED IN VENUE CHOICE
The Dekra Lausitzring was chosen after an exhaustive global search for the fastest possible course for the Phoenix Sub7 and Sub8 attempt.
IRONMAN ROYALTY MARK ALLEN PREDICTS A 7:33 FOR THE WOMEN
The six-time Ironman Hawaii winner has calculated that the Pho3nix Sub8 Project, powered by Zwift will provide conditions for an even faster time than expected.