IRONMAN 70.3 Ha Long Bay
About the race
IRONMAN 70.3 Ha Long Bay brings athletes to a destination shaped over millions of years, framed by the UNESCO World Heritage landscape of Ha Long Bay. The race transforms one of the world’s iconic natural wonders into a stage for endurance, ambition, and personal breakthrough. This event serves as a World Championship Qualifier.
Athletes may participate individually or join as part of a Relay Team to share the race day experience.
Transition 1
Transition is conveniently located at Hon Gai Beach. Store all your gear in one place with a centralized setup, avoiding split transitions. Positioned directly on the beachfront with immediate swim exit access, it allows smooth flow between all three disciplines and easy access for supporters.
Relay teams
Experience the thrills of an IRONMAN 70.3 race day by entering as a team. Teammates share the disciplines to complete the course together.
The course
The 1.9km swim features an anti-clockwise L-shaped loop with a rolling start from Hon Gai Beach. The 90km bike section is a flat, fast 2-loop route along Tran Quoc Nghien Street with a U-turn at 44km. The 21.1km run consists of 2 oceanfront loops on Tran Quoc Nghien Street along the coastal boulevard.
Swim course
The 1.9km swim of the IRONMAN 70.3 Ha Long Bay features a rolling start at Hon Gai beach, following an L-shaped swim course going anti-clockwise, with four red buoys marking the four turning points. Athletes complete one lap before heading back to the beach, leading directly into the beachfront transition area.
Bike course
The 90km bike course starts at Hon Gai Beach on the smooth asphalt of Tran Quoc Nghien Street. Designed as a high-speed 2-loop format along an oceanfront boulevard, cyclists experience views of limestone karsts and emerald waters. Athletes make a U-Turn at the 44km mark to start the second loop before veering into Transition to rack bikes.
Run course
The 21.1km two-loop run along Tran Quoc Nghien Street coastal boulevard finishes back at Hon Gai Beach.
Race weekend schedule
Location
Hon Gai Beach, Ha Long, Vietnam Open in Google Maps
Know from the athletes
Similar races
Oilman Texas Triathlon
Twilight Triathlon (Race 2)
West Valley Triathlon
Last Chance Triathlon
Kendra's Race Triathlon and 5k
Cambridge Beaches Bermuda Triathlon
Game On! Mirada Lagoon Triathlon Presented by SACFCU
Boca Raton YMCA Youth Triathlon Fall 2026
IRONMAN 70.3 Phu Quoc
Social profiles