Precision Fuel & Hydration and their science team has made me understand my body's energy needs during a triathlon. Their products make sure I never 'bonk' during a race or training.
Jelle Geens
2x IRONMAN 70.3® World Champion
Jelle has recently transitioned from Olympic distance triathlon to middle, and plans to move up to full distance in the future.
Jelle has competed at three Olympic Games and is the first, and still only, Belgian athlete to win a WTCS race. In 2024, Jelle won the IRONMAN 70.3® World Championships in Taupo, New Zealand, and he followed that up by successfully defending his title with victory at the Precision Fuel & Hydration IRONMAN 70.3® World Championship in Marbella in 2025, coming out on top in an epic sprint finish with Kristian Blummenfelt.
Jelle is looking forward to working together with Precision Fuel & Hydration as he refines his fuel and hydration strategy for middle-distance racing, with a view to taking on a full IRONMAN® in the near future.
Precision Fuel & Hydration and their science team has made me understand my body's energy needs during a triathlon. Their products make sure I never 'bonk' during a race or training.
Get to know Jelle
Jelle's recent case studies
Notable Achievements
| 2025 | 1st at PF&H IRONMAN 70.3® World Champs |
| 2025 | 1st at IRONMAN 70.3® Geelong |
| 2024 | 1st at IRONMAN 70.3® World Champs |
| 2024 | 1st at T100 Las Vegas |
| 2019 | 1st at WTCS Montreal |
| 2021 | 1st at WTCS Abu Dhabi |
| 3x Olympian |
Key Stats
| 5k | 14:01 |
| IRONMAN 70.3® | 3:32:09 |