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Pro Triathlete
Fiona Moriarty 
Irish professional long-course triathlete, IRONMAN podium finisher and three-time IRONMAN World Championship starter.
About
Fiona Moriarty is a professional triathlete who races for Ireland over the middle and long distances. Born and raised in Boston to Irish parents, she came to triathlon from track and field in 2016, after injuries led her to the bike.
Her first professional IRONMAN was fifth place at IRONMAN Florida in 2020. She took her first podium with third at IRONMAN Australia in 2023, and finished second at IRONMAN Brasil in 2025. She has raced the IRONMAN World Championship in Kona in 2023 and 2025 and in Nice in 2024, all while working a full-time job.
A celiac and a former pastry chef, she shares the gluten-free food she bakes to fuel her training on her website.
Career highlights
- PTO world ranking: 249th overall, 3rd in Ireland
- 2nd, IRONMAN Brasil 2025
- 3rd, IRONMAN Australia 2023: her first professional podium
- IRONMAN World Championship: Kona 2023 and 2025, Nice 2024
- IRONMAN 70.3 World Championship 2024
- 5th, IRONMAN Florida 2020, her first professional IRONMAN
- 6th, IRONMAN Cairns 2024 and IRONMAN Vitoria-Gasteiz 2023
Follow
At a glance
- Sport
- Triathlon
- Represents
- Ireland
- Distance
- IRONMAN and IRONMAN 70.3
- Off the bike
- Gluten-free baker
Sponsors
Castelli Triathlon, blueseventy, Ventum, Precision Fuel & Hydration.
