"Cold-water ocean swim and hilly bike course in the rugged beauty of Ottawa."
🏊 Swim
Ocean swim in Ottawa
🚴 Bike
Hilly bike course around Ottawa
🏃 Run
Run through Ottawa
Transition Details
T1/T2 are in the same location · Surface: pavement
Weather
Typical conditions in Ottawa
Registration
https://www.example.com/ottawa-triathlon-70-3
The Story
There's a reason 70.3 is the fastest-growing distance in triathlon, and races like Ottawa's are the proof. This isn't a scaled-down Ironman. It's a purpose-built race. The 1.9km swim sends you into cold open ocean at 13°C — bracing — the kind of cold that sharpens focus. 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: 821m 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 Ottawa, adding 123m of climbing to legs already tested by the bike. The undulations are psychological as much as physical — each rise feels larger than it is when you've been racing for four hours. This is 70.3 in Ottawa: Rideau Canal proximity, Parliament Hill as a landmark, bilingual Canada Day energy. 70.3 miles of honest racing. No shortcuts, no easy legs, no forgiveness for a bad plan.
"I trained for six months specifically for this 70.3. Standing at the finish line in Ottawa, every session was worth it."
What It Feels Like
70.3 triathlon with Ottawa character. This course suits experienced 70.3 athletes who want a course that fights back. This isn't a PB course — it's a character-building one. Five-plus hours of racing through a city this distinctive — the setting adds a dimension no training plan can replicate.
🏊 The Swim
A 1.9km ocean swim in cold saltwater at 13°C — long enough that sighting discipline and stroke efficiency matter more than raw speed. Ocean swell can push you off-line; sight every 8-10 strokes. The salt buoyancy helps body position but stings the eyes. Exit through the surf and run to T1.
🚴 The Bike
90km with 821m 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
A 21.1km rolling run through Ottawa with 123m of gain. The undulations feel disproportionate on legs that have just covered 90km of bike. Keep cadence quick on the ups, use the downs to stretch your stride, and run the tangents. In mild 15°C conditions, each hill amplifies the heat cost. Walk an aid station if you need to — it costs 15 seconds and gains you proper hydration.
💡 Insider Tips
- → Water temperature averages 13°C — that's cold for a 1.9km swim. Train in cold open water regularly in the weeks before. Your first 400m set the tone: if you can settle into rhythm through the cold shock, you'll swim well. A neoprene cap makes a measurable difference.
- → The bike packs 821m 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.
- → Ocean conditions can shift between recon and race morning. For 1.9km in open ocean, sight every 8-10 strokes — swell can push you hundreds of metres off course without you feeling it. Practice dolphin-diving through shore break and body-surfing back to shore.
Prepare for This Race
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FAQ
What distance is the Ottawa Triathlon 70.3? +
The Ottawa Triathlon 70.3 is a Half Ironman / 70.3 distance triathlon: 1900m swim, 90km bike, and 21.1km run (113km total) in Ottawa, Canada.
When is the Ottawa Triathlon 70.3? +
Typically held in May on a Sunday.
Water temperature and wetsuit rules? +
Ocean water at 13°C average. Wetsuit rules are conditional.
How hilly is the bike course? +
821m of climbing over 90km. Profile: hilly. Drafting not allowed.
What's the weather like on race day? +
undefined–undefined°C, 70% humidity, 34% rain chance, 14 km/h winds.
Average finish time? +
Approximately 5h 30m. Varies with conditions and athlete experience.
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