Black Line Swim Coaching

Swim smarter. Save energy. Race faster.

Most triathletes don’t come from a swimming background — and that’s exactly why Black Line Swim Coaching exists.

Founded by brothers Kilian and Nolan Carrel, Swiss-born, Australian-raised open-water specialists who race for Switzerland, this program gives triathletes access to the level of coaching normally reserved for national-team athletes.

They’ve trained inside elite open-water squads.
They’ve learned under legendary coach John Rodgers (JR).
They’ve Trained alongside Olympic open-water swimmers like Kareena Lee, Nick Sloman, and William Thorley — and world-class Ironman athletes like Jan Frodeno, Brayden Currie, and Fred Funk.

That experience now translates into a simple promise:
better technique, stronger pull, safer shoulders, and more confidence in open water — even if swimming has never been your strength.

Start with a free assessment and personalised plan built around your current ability and your race goals.
Then move into the monthly coaching program:
structured swim sessions for triathletes, technique work that fixes the habits slowing you down, and progress you can actually feel in the water.

Whether you’re chasing a faster 70.3 swim, fighting for a calmer race start, or trying to get out of the water with enough energy left to bike and run strong, Kilian and Nolan give you a plan that fits your training load — not a generic “swimmer” program.

Coming soon: triathletes in Australia and Switzerland will be able to book 1:1 in-person coaching with the Carrel brothers — hands-on technique work designed specifically for open-water racing.