THE SWIM.
The Pho3nix Sub7, powered by Zwift and Pho3nix Sub8, powered by Zwift swim legs will take place on the same 3.8 km course, which will be designed to eliminate delays and deliver the fastest possible times. The men and women will begin at different times, delivering two separate head-to-head races.
THE SWIM
How will our athletes fare?

Alistair
Brownlee
Dual Olympic Champion
Whist rarely first out of the water, Alistair Brownlee is never too far away from the leaders into transition. Having swum every single day since the age of eight, the reigning Olympic champion set up his record-breaking Ironman WA win in 2019 with a 46:29 swim split – and he’ll need to better than that if he is to go Sub 7.
With just 3 years as a pro, Kat is improving in all areas, but especially in the water. Doubling her swim training volume from 2021, Kat now swims over 80km a month and the results speak for themselves.
Katrina
Matthews
Two Times Ironman Champion


Kristian
Blummenfelt
Ironman World Champion
A training machine, Kristian Blummenfelt swims up to 45km every week. The Norwegian comes from a swimming background and never leaves himself too much work to do on the bike leg to find himself at the pointy end.
Throughout her long career, Nicola Spirig has freely admitted that her swim has been her weakest discipline, but that’s only due to the strength of her work on land. The 38 year old boasts a wealth of experience, and has always been one of the hardest workers in the pool.
Nicola
Spirig
Dual Olympic Medalist

By the Numbers
FOR THE MEN:
IRONMAN
WC RECORD
PACE
1:06/100mÂ
PACE REQUIRED
FOR 40-MINUTE
TARGET
1:03/100m
OLYMPIC
1500M
RECORD PACE
0:58/100m
FOR THE WOMEN:
IRONMAN
WC RECORD
PACE
1:11/100mÂ
PACE REQUIRED
FOR 45-MINUTE
TARGET
1:12/100m
OLYMPIC
1500M
RECORD PACE
1:01/100m
Swim
Can it be done?
Sub 40 MINUTES? (Men)
Swim
Can it be done?
Sub 45 MINUTES? (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.