"Lake swim and mountain bike in Gold Coast, Australia."
🏊 Swim
Lake swim in Gold Coast
🚴 Bike
Hilly bike course around Gold Coast
🏃 Run
Run through Gold Coast
Transition Details
T1/T2 are in the same location · Surface: pavement
Weather
Typical conditions in Gold Coast
Registration
https://www.example.com/gold-coast-triathlon-70-3
The Story
Seventy point three miles through Gold Coast. That's 1.9km in the water, 90km on the bike, and a half-marathon to finish — the world's most popular triathlon distance, in a city that earns the right to host it. The 1.9km swim sends you into mild still lake waters at 20°C — comfortable — cool on entry, forgotten after 200 metres. It's long enough that a poor start costs real time, short enough that strong swimmers can build a genuine lead. The 90km bike is the defining leg: 989m of elevation gain across a mountainous course that separates those who trained for this specific distance from those who just showed up fit. Ninety kilometres of climbing changes the race equation entirely. The 21.1km run rolls through Gold Coast, adding 148m of climbing to legs already tested by the bike. The beauty of 70.3: close enough to sprint distance to race hard, long enough to punish anyone who doesn't respect the distance.
"The thing about Gold Coast is the city itself gets into the race. You feel it on the run — the crowd, the setting, the energy. It carries you."
What It Feels Like
A half-iron course in Gold Coast that suits experienced 70.3 athletes who want a course that fights back. This isn't a PB course — it's a character-building one. The city's surf-city racing on a golden shore extends to the race itself. Recovery is part of the experience: a burger and a cold Balter.
🏊 The Swim
A 1.9km freshwater lake swim at 20°C. No salt, no currents, no tide — just you and 1,900 metres of open water. Lake swims reward smooth bilateral breathing and consistent sighting. Comfortable — cool on entry, forgotten after 200 metres. The calm surface makes drafting easier to find and hold.
🚴 The Bike
90km with 989m of climbing — a mountainous bike course that makes the 90km the race's decisive leg. Power-to-weight matters more than pure wattage. The climbs test your legs; the descents test your nerve. Come with a compact crankset, climbing legs, and the discipline to save something for 21.1km of running.
🏃 The Run
21.1km of rolling Gold Coast terrain. After the bike, each rise lands differently than it would on fresh legs. The rollers add a psychological dimension — the finish always feels further than the markers suggest. Quick turnover, short stride on the climbs, and trust your fuelling from the bike.
💡 Insider Tips
- → The bike packs 989m of climbing over 90km — that's a real day in the saddle. Keep cadence above 80rpm on the climbs and resist the urge to hammer. Every watt you spend above threshold on the bike comes out of your half-marathon. A compact crankset with a 28+ cassette is non-negotiable.
- → Nutrition is the fourth discipline at 70.3 distance. Practice your race-day fuelling in training until it's automatic. Target 60-80g of carbs per hour on the bike (gels, drink mix, or both), and carry at least one gel for the run. Under-fuelling a 90km bike destroys a half-marathon.
- → The half-marathon off 90km of cycling is a different beast from a standalone run. Start the run 15-20 seconds per kilometre slower than your open half-marathon pace. Build through the first 5km as your legs adjust. Most 70.3 athletes run their best splits by being conservative early and strong late.
Prepare for This Race
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FAQ
What distance is the Gold Coast Triathlon 70.3? +
The Gold Coast Triathlon 70.3 is a Half Ironman / 70.3 distance triathlon: 1900m swim, 90km bike, and 21.1km run (113km total) in Gold Coast, Australia.
When is the Gold Coast Triathlon 70.3? +
Typically held in May on a Sunday.
Water temperature and wetsuit rules? +
Lake water at 20°C average. Wetsuit rules are conditional.
How hilly is the bike course? +
989m of climbing over 90km. Profile: hilly. Drafting not allowed.
What's the weather like on race day? +
undefined–undefined°C, 43% humidity, 29% rain chance, 10 km/h winds.
Average finish time? +
Approximately 5h 30m. Varies with conditions and athlete experience.
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