Joy Tiu

Hammer Nutrition Philippines
Joy Tiu, Philippine triathlete and Hammer Nutrition athlete

Meet Joy Tiu from the Philippines, a triathlete and Hammer Nutrition athlete. A former varsity basketball and track athlete, she started running again in 2024 and less than two years later raced the IRONMAN 70.3 World Championship in Spain. Follow her on Instagram at @tiu_joy.

From runner to triathlete

  • 2024: 1st in her age group in the 32 km HOKA Trilogy Run Asia in Cebu, under 3 hours, then HOKA Trilogy Run Asia age group champion for the series and her first overall podium.
  • 2025: won the 3000 m and 1500 m at her track season opener, and a P1 finish at the Decathlon Half Marathon.
  • 2025: 2nd at the Super Aquathlon All Stars and silver in the mixed relay at the Titan 77.7 Long Distance Duathlon.
  • An age group win at the My Daily Collagen Triathlon.

First 70.3, and a ticket to the World Championship

Joy Tiu crossing the finish line of her first IRONMAN 70.3Joy's first IRONMAN 70.3 finish in June 2025 came with a slot at the IRONMAN 70.3 World Championship in Marbella, Spain.

Joy Tiu with the Philippine flag at the IRONMAN 70.3 World Championship finish in Marbella, SpainIn November 2025 she crossed the World Championship finish line in Marbella with the Philippine flag, thanking everyone whose support "kept me going 'til the finish line."

The 2026 season

Joy Tiu on the age group podium at IRONMAN 70.3 Davao 2026

  • IRONMAN 70.3 Davao, March 22, 2026: her third 70.3, in a new age group. She hit her goal of going under 6 hours and finished 2nd in Female 25 to 29, with a race she called "built on consistency, trust, and well executed plan."
  • IRONMAN 70.3 Cebu, August 2026: high currents and strong winds, and she finished safe, strong and fulfilled.

The singer

Joy Tiu singing on stage at the World Minnan Dialect Youth Singing Competition

Off the race course, Joy sings. She placed 3rd at the World Minnan Dialect Youth Singing Competition in October 2025, and in September 2026 she finished 1st runner-up at the Philippine wildcard qualifier of the World Hokkien Golden Melody Songs Competition, earning a trip to Xiamen, China. She did all this while finishing two degrees at De La Salle University and becoming a Certified Public Accountant in 2026.

How she fuels

Her go-to Hammer fuels are Hammer Gel during training and racing and Recoverite after, and she is one of our athletes who uses Anti-Fatigue Caps in training and racing.

Watch Joy

Joy Tiu at her first IRONMAN 70.3▶ First 70.3, and definitely not the last Joy Tiu at the IRONMAN 70.3 World Championship finish in Marbella▶ 70.3 World Championship, Marbella Joy Tiu on the podium at the Super Aquathlon All Stars▶ Super Aquathlon All Stars Joy Tiu at the Decathlon Half Marathon 2025▶ P1 at the Decathlon Half Marathon

See how to fuel for her distances in our Olympic-Distance, Half or Full Iron Distance and Half Marathon guides.