The flattest IRONMAN 70.3 courses, by continent

Updated

Some people choose a 70.3 for the views from the top of the climb. You'd rather there wasn't a top. Fair enough. A flat course turns the day into a test of pacing and fuelling instead of a long argument with gravity, which makes it a smart pick for a first half or a run at a personal best.

So here's every upcoming IRONMAN 70.3 where both the bike and the run are rated Flat, grouped by continent, followed by the races that come closest. Right now that's 39 races. The lists are pulled from the same race data that powers the search on Find My Tris, so they keep themselves current: finished races drop off, newly announced dates appear. No need to squint at the publish date.

What "flat" means here

Every race in our data has a bike course type and a run course type: Flat, Rolling or Hilly. Those labels come from the course descriptions on the official IRONMAN race pages. We don't measure elevation ourselves, and we don't rank races within a group. So "flat" means "the organiser calls it flat", not "under a certain number of metres of climbing". It's a description, not a survey.

Three things to know before you book:

  • Flat is not easy. A flat bike course along a coast or across open farmland is often windy, and a stiff headwind can cost you more time than a few hills would. Flat courses also keep you in one position on the bike for a long time. Your back and neck will have opinions about that if you haven't trained for it.
  • Heat matters as much as hills. Several of the flattest races are in warm places. The water and air temperatures in each note are typical values for the race period, not a forecast.
  • Courses change. Organisers tweak routes from year to year. Check the official course map on the race's IRONMAN page before you commit.

Each race below comes with a short note built only from our data: course types, swim type, typical water and air temperature, and the nearest airport. They're sorted by date.

Flat bike and flat run

Europe

  • IRONMAN 70.3 Türkiye — November 1, 2026, Belek, Türkiye
    Flat bike, flat run · ocean swim · water 77°F / 25°C · air 71°F / 22°C · nearest airport: Antalya Airport (AYT)
  • IRONMAN 70.3 Venice-Jesolo — April 24, 2027, Jesolo, Italy
    Flat bike, flat run · ocean swim · water 63°F / 17°C (wetsuit-likely) · air 57°F / 14°C · nearest airport: Venice Marco Polo Airport (VCE)
  • IRONMAN 70.3 Tours Metropole - Loire Valley — June 6, 2027, Tours, France
    Flat bike, flat run · river swim · water 66°F / 19°C (wetsuit-likely) · air 64°F / 18°C · nearest airport: Tours Val de Loire Airport (TUF)
  • IRONMAN 70.3 Westfriesland — June 20, 2027, Hoorn, Netherlands
    Flat bike, flat run · lake swim · water 63°F / 17°C (wetsuit-likely) · air 64°F / 18°C · nearest airport: Amsterdam Airport Schiphol (AMS)
  • IRONMAN 70.3 Leipzig — August 8, 2027, Leipzig, Germany
    Flat bike, flat run · lake swim · water 72°F / 22°C (wetsuit-likely) · air 69°F / 21°C · nearest airport: Leipzig/Halle Airport (LEJ)
  • IRONMAN 70.3 Tallinn — August 8, 2027, Tallinn, Estonia
    Flat bike, flat run · lake swim · water 64°F / 18°C (wetsuit-likely) · air 61°F / 16°C · nearest airport: Tallinn Airport (TLL)
  • IRONMAN 70.3 Belgrade — September 12, 2027, Belgrade, Serbia
    Flat bike, flat run · lake swim · water 74°F / 23°C (wetsuit-likely) · air 69°F / 21°C · nearest airport: Belgrade Nikola Tesla Airport (BEG)
  • IRONMAN 70.3 Erkner — September 12, 2027, Erkner, Germany
    Flat bike, flat run · lake swim · water 68°F / 20°C (wetsuit-likely) · air 59°F / 15°C · nearest airport: Berlin Brandenburg Airport (BER)
  • IRONMAN 70.3 Mamaia Constanta, Romania — September 26, 2027, Mamaia, Romania
    Flat bike, flat run · ocean swim · water 70°F / 21°C (wetsuit-likely) · air 67°F / 19°C · nearest airport: Mihail Kogălniceanu International Airport (CND)
  • IRONMAN 70.3 Málaga — October 31, 2027, Málaga, Spain
    Flat bike, flat run · ocean swim · water 68°F / 20°C (wetsuit-likely) · air 67°F / 19°C · nearest airport: Málaga Airport (AGP)

Europe's flat races run from spring to early autumn. The early- and late-season ones tend to have cooler water, which is where the "wetsuit-likely" tag comes in: the typical water temperature is at or below the IRONMAN age-group wetsuit limit (details further down).

North America

  • IRONMAN 70.3 Campeche — November 8, 2026, Campeche, Mexico
    Flat bike, flat run · ocean swim · water 80°F / 27°C · air 81°F / 27°C · nearest airport: Campeche International Airport (CPE)
  • IRONMAN 70.3 La Quinta — December 6, 2026, La Quinta, United States
    Flat bike, flat run · lake swim · water 57°F / 14°C (wetsuit-likely) · air 67°F / 19°C · nearest airport: Palm Springs International Airport (PSP)
  • IRONMAN 70.3 Veracruz — December 6, 2026, Veracruz, Mexico
    Flat bike, flat run · ocean swim · water 77°F / 25°C · air 76°F / 24°C · nearest airport: General Heriberto Jara International Airport (VER)
  • IRONMAN 70.3 Panama — February 28, 2027, Panama City, Panama
    Flat bike, flat run · ocean swim · water 78°F / 26°C · air 84°F / 29°C · nearest airport: Tocumen International Airport (PTY)
  • IRONMAN 70.3 Texas — April 4, 2027, Galveston Island, United States
    Flat bike, flat run · bay swim · water 71°F / 22°C (wetsuit-likely) · air 73°F / 23°C · nearest airport: George Bush Intercontinental Airport (IAH)
  • IRONMAN 70.3 Gulf Coast — May 8, 2027, Panama City Beach, United States
    Flat bike, flat run · ocean swim · water 76°F / 24°C (wetsuit-likely) · air 77°F / 25°C · nearest airport: Northwest Florida Beaches International Airport (ECP)
  • IRONMAN 70.3 Eagleman — June 13, 2027, Cambridge, United States
    Flat bike, flat run · river swim · water 75°F / 24°C (wetsuit-likely) · air 77°F / 25°C · nearest airport: Baltimore-Washington International Airport (BWI)
  • IRONMAN 70.3 Oregon — July 18, 2027, Salem, United States
    Flat bike, flat run · river swim · water 65°F / 18°C (wetsuit-likely) · air 71°F / 22°C · nearest airport: Portland International Airport (PDX)
  • IRONMAN 70.3 Cozumel — September 26, 2027, Cozumel, Mexico
    Flat bike, flat run · ocean swim · water 84°F / 29°C · air 85°F / 29°C · nearest airport: Cozumel International Airport (CZM)

North America has the most flat-and-flat options in our data, and they cover almost every month. Water temperatures swing a lot, from cool lakes to warm Gulf and Caribbean water, so read the note for each race rather than guessing which wetsuit to pack.

South America

  • IRONMAN 70.3 Cartagena — November 29, 2026, Cartagena, Colombia
    Flat bike, flat run · bay swim · water 85°F / 29°C · air 83°F / 28°C · nearest airport: Rafael Núñez International Airport (CTG)
  • IRONMAN 70.3 Valdivia — November 29, 2026, Valdivia, Chile
    Flat bike, flat run · river swim · water 61°F / 16°C (wetsuit-likely) · air 58°F / 14°C · nearest airport: Pichoy Airport (ZAL)
  • IRONMAN 70.3 Sergipe — November 29, 2026, Aracaju, SE, Brazil
    Flat bike, flat run · river swim · water 79°F / 26°C · air 82°F / 28°C · nearest airport: Aracaju-Santa Maria International Airport (AJU)
  • IRONMAN 70.3 Brasilia — April 18, 2027, Brasília, Brazil
    Flat bike, flat run · lake swim · water 72°F / 22°C (wetsuit-likely) · air 74°F / 23°C · nearest airport: Brasilia International Airport (BSB)
  • IRONMAN 70.3 Peru — April 25, 2027, Lima, Peru
    Flat bike, flat run · ocean swim · water 70°F / 21°C (wetsuit-likely) · air 70°F / 21°C · nearest airport: Jorge Chavez International Airport (LIM)
  • IRONMAN 70.3 Asunción — July 11, 2027, Asunción, Paraguay
    Flat bike, flat run · river swim · water 66°F / 19°C (wetsuit-likely) · air 62°F / 17°C
  • IRONMAN 70.3 Rio de Janeiro — August 8, 2027, Rio de Janeiro, Brazil
    Flat bike, flat run · ocean swim · water 73°F / 23°C (wetsuit-likely) · air 78°F / 26°C · nearest airport: Rio de Janeiro/Galeao International Airport (GIG)
  • IRONMAN 70.3 São Paulo — September 19, 2027, São Paulo, Brazil
    Flat bike, flat run · reservoir swim · water 71°F / 22°C (wetsuit-likely) · air 71°F / 22°C · nearest airport: Sao Paulo/Guarulhos International Airport (GRU)

Asia

  • IRONMAN 70.3 Kenting — November 1, 2026, Kenting, Chinese Taipei
    Flat bike, flat run · ocean swim · water 77°F / 25°C · air 80°F / 27°C · nearest airport: Kaohsiung International Airport (KHH)
  • IRONMAN 70.3 Phu Quoc — November 15, 2026, Phu Quoc, Vietnam
    Flat bike, flat run · ocean swim · water 84°F / 29°C · air 84°F / 29°C · nearest airport: Phu Quoc International Airport (PQC)
  • IRONMAN 70.3 Bahrain — December 11, 2026, Manama, Bahrain
    Flat bike, flat run · bay swim · water 74°F / 23°C (wetsuit-likely) · air 74°F / 23°C · nearest airport: Bahrain International Airport (BAH)
  • IRONMAN 70.3 Amdavad — February 14, 2027, Ahmedabad, India
    Flat bike, flat run · river swim · water 73°F / 23°C (wetsuit-likely) · air 77°F / 25°C · nearest airport: Sardar Vallabhbhai Patel International Airport (AMD)
  • IRONMAN 70.3 Doha — March 20, 2027, Doha, Qatar
    Flat bike, flat run · sea swim · water 73°F / 23°C (wetsuit-likely) · air 77°F / 25°C · nearest airport: Hamad International Airport (DOH)
  • IRONMAN 70.3 Da Nang — May 9, 2027, Da Nang, Vietnam
    Flat bike, flat run · ocean swim · water 82°F / 28°C · air 86°F / 30°C · nearest airport: Da Nang International Airport (DAD)
  • IRONMAN 70.3 Davao — June 13, 2027, Davao City, Philippines
    Flat bike, flat run · ocean swim · water 85°F / 29°C · air 82°F / 28°C · nearest airport: Francisco Bangoy International Airport (DVO)
  • IRONMAN 70.3 Philippines — August 8, 2027, Lapu Lapu City, Philippines
    Flat bike, flat run · ocean swim · water 82°F / 28°C · air 86°F / 30°C · nearest airport: Mactan-Cebu International Airport (CEB)
  • IRONMAN 70.3 Colombo — August 22, 2027, Colombo, Sri Lanka
    Flat bike, flat run · ocean swim · water 78°F / 26°C · air 85°F / 29°C · nearest airport: Bandaranaike International Airport (CMB)

Many of the flat Asian races are in tropical climates, with hot air and warm water. If you train somewhere cool, the hills you skipped will be replaced by heat, so plan some acclimatisation alongside the distance work.

Oceania

  • IRONMAN 70.3 Melbourne — November 8, 2026, St. Kilda, VIC, Australia
    Flat bike, flat run · bay swim · water 65°F / 18°C (wetsuit-likely) · air 63°F / 17°C · nearest airport: Melbourne Airport (MEL)
  • IRONMAN 70.3 Western Australia — December 6, 2026, Busselton, Australia
    Flat bike, flat run · bay swim · water 66°F / 19°C (wetsuit-likely) · air 68°F / 20°C · nearest airport: Busselton Regional Airport (BQB)
  • IRONMAN 70.3 Western Sydney — May 2, 2027, Penrith, Australia
    Flat bike, flat run · lake swim · water 66°F / 19°C (wetsuit-likely) · air 63°F / 17°C · nearest airport: Sydney Kingsford Smith Airport (SYD)

Africa

No upcoming races match right now.

If a continent shows no races, none of its upcoming 70.3s are currently rated flat on both bike and run. That can change when new dates are announced.

Next best: flat bike, rolling run

The bike is the longest leg of a 70.3 (90 km / 56 miles), so a flat bike does most of the heavy lifting in making a race feel flat. There are 7 upcoming races where the bike is flat and the run is rated Rolling:

  • IRONMAN 70.3 Durban — June 6, 2027, Durban, South Africa
    Flat bike, rolling run · ocean swim · water 72°F / 22°C (wetsuit-likely) · air 64°F / 18°C · nearest airport: King Shaka International Airport (DUR)
  • IRONMAN 70.3 Muncie — July 10, 2027, Muncie, United States
    Flat bike, rolling run · reservoir swim · water 68°F / 20°C (wetsuit-likely) · air 77°F / 25°C · nearest airport: Indianapolis International Airport (IND)
  • IRONMAN 70.3 Ohio — July 18, 2027, Sandusky, United States
    Flat bike, rolling run · lake swim · water 78°F / 26°C · air 74°F / 23°C · nearest airport: Cleveland Hopkins International Airport (CLE)
  • IRONMAN 70.3 Duisburg — August 29, 2027, Duisburg, Germany
    Flat bike, rolling run · lake swim · water 70°F / 21°C (wetsuit-likely) · air 69°F / 21°C · nearest airport: Dusseldorf Airport (DUS)
  • IRONMAN 70.3 Santa Cruz — September 12, 2027, Santa Cruz, United States
    Flat bike, rolling run · ocean swim · water 63°F / 17°C (wetsuit-likely) · air 64°F / 18°C · nearest airport: San Jose International Airport (SJC)
  • IRONMAN 70.3 North Carolina — October 16, 2027, Wilmington, United States
    Flat bike, rolling run · bay swim · water 72°F / 22°C (wetsuit-likely) · air 63°F / 17°C · nearest airport: Wilmington International Airport (ILM)
  • IRONMAN 70.3 Waco — November 14, 2027, Waco, United States
    Flat bike, rolling run · river swim · water 65°F / 18°C (wetsuit-likely) · air 67°F / 19°C · nearest airport: Waco Regional Airport (ACT)

A rolling run means some gentle ups and downs over the half marathon. For most people that's a small price compared with a hilly bike. You'll notice the bumps. You'll survive them.

Also worth a look: rolling bike, flat run

Flip it around and 26 upcoming races pair a rolling bike with a flat run. Good if you don't mind a bit of climbing on the bike but want a predictable run off it, when your legs are least in the mood for surprises. Rather than list them all here, browse them on the flat run courses page, which includes the races above too.

How to pick from the list

A few practical ways to narrow it down:

  1. Start with the calendar. Pick the months that give you enough training time, then see which flat races land in them. The races by month pages list every upcoming race, month by month.
  2. Decide how you feel about heat. If you'd rather race cool, look for "wetsuit-likely" in the notes, or go straight to the wetsuit-likely races list.
  3. Think about travel. Each note names the nearest airport from our data. A race close to a major international airport is usually much easier to reach, especially when you're hauling a bike box.
  4. Open the event page. Every race name links to its page on Find My Tris, with everything we know plus a link to the official IRONMAN page for entry, course maps and the athlete guide.

About wetsuits

Under the 2026 IRONMAN Competition Rules (section 4.02), age-group athletes may wear a wetsuit when the water is up to and including 76.1°F (24.5°C). Wetsuits are mandatory below 60.8°F (16°C) and prohibited above 83.8°F (28.8°C). Between 76.1°F and 83.8°F, some events may allow wetsuits only in a separate non-competitive wave. Athletes in that wave can't win age-group awards or World Championship slots.

Our "wetsuit-likely" tag means the typical water temperature is at or below 76°F (24°C). It's a guide, not a promise. The official call is made from the water temperature measured on race morning, so pack the wetsuit and keep your expectations flexible.

Related pages

Sources