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
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 also won the T100 Lake Las Vegas.
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 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 |
Jelle's Top Tips
It's very important to test out your race nutrition before race day to make sure it's fully dialled inGet a Sweat Test so you can work out how much sodium you should be consuming during racesDo some heat training if you're going to be racing in hot conditions