Race certified by Finishers: event approved by the organizer

Bidassoa Half Marathon 2027

« Speed through the scenic Basque landscape! »
Next event date confirmed
See more about the offers
Photo credits: Semi-Marathon de Bidasoa

The event in a few words

Feeling like lacing up your Basque-ettes again? 👟

In February, join the half marathon of the Bidassoa in Irún. Here, no hellish climbs or treacherous false flats: the course is flat, fast and certified for hungry time chasers 💥. Want to smash your PR? This is where it happens 📍. What makes this race unique is that it runs along the French-Spanish border for almost the entire route 🇪🇸. At the same time, that boundary is formed by... the Bidassoa River, hence the name of the race! 💦

You’ll therefore run along the Bidassoa, this river that comes straight from the Pyrenees and passes through Hendaye🏘️. We hope you’re ready to put down the watts ⚡️, because a route with zero elevation gain is waiting for you 🤩. On the agenda: 21 km of pure pleasure between spruced-up Basque facades, historic alleyways and seafront panoramas by the water’s edge 🌊. But this event isn’t a leisurely stroll ❌. Let’s just say that if you’re just starting out in running, this isn’t the time to mess with the Basques 😈. With a time limit of 2h30 and 5 checkpoints to validate, you’ll have to keep the pace, even if you’re not trained enough! 🤪 Starting from Irún, you’ll head up to the bay of Hondarribia, offering you a breathtaking view of Jaizkibel Mountain ⛰️. The event also offers a 10 km route if you prefer short, intense distances 💥. As a bonus, this race supports Tadamun Elkartea, and more specifically the “ Holidays in Peace ” program, which allows Sahrawi children to catch their breath away from the camps by spending the summer in Hondarribia. 100% of runners’ donations will be passed on to them 🫶. If that doesn’t make you run even faster, we don’t know what will 🥵.

Once your medal is around your neck, no way you’re heading straight home! 😊 “ What?? But I’m totally over it, I want to go home 😫”. Come oooon, a little motivation—the Basque Country is waiting for you with piping-hot pintxos 😋. Go devour grilled chipirons, melting croquetas, or a good Espelette axoa on a terrace, with a local craft beer or a nice cold glass of txakoli 🍷. And if you really want to take your post-race nap, head for the beaches of Hendaye, or treat yourself to a little swim in the coves of Hondarribia 💦. And if you’ve still got a bit of juice left in your calves ⚡️, a hike on the first foothills of the Basque mountains is waiting for you to help digest it all ⛰️.

So, ready to run faster than a Basque pelota player? ⚾️

4 reasons to join this race

For the speed of the course 💨
Want to beat your personal best? Here, it’s possible 🤩. The route is certified by the RFEA, so it’s perfect for an official performance, and above all it’s completely flat from start to finish 🥵. Not a single hill in sight... except maybe the one in your heart rate 🫀.
For a good cause 🫶
In 2026, every bib supports the “Holidays in Peace” project led by the Tadamun Elkartea association 👶. Thanks to you, Sahrawi children will be able to spend a summer away from the desert’s crushing heat, safe here in Hondarribia 📍. And that’s well worth a blister or two 😊.
For the beauty of the region 😍
You’ll be running in the heart of the Spanish Basque Country, in Irún. Get your eyes ready, because this region is simply stunning 🔍. You’ll move along the Bidassoa River, past traditional Basque houses with red shutters and the surrounding mountains ⛰️.
For the post-race 🍽️
Once you’ve crossed the finish line and your medal is around your neck, it’s time for comfort 😴. Wander around Irun or Hendaye for a good plate of chipirons, generously topped pintxos, or a giant txuleta to share 😋. Enjoy the sea, take a dip at the beach, stroll through the lively streets of Hondarribia, or climb Jaizkibel for a panoramic view 👁️.

A distance for every taste

Half Marathon

Road RunningThe most popular
  • Sunday, February 28, 2027 at 10:00 AM
  • 1 loopx21.0975 km

A few more words

The start is from Paseo de Colón in Irun 📍. The route follows the Bidassoa river toward Hondarribia, all the way to the end of the harbor in the Bay of Hondarribia 😍. Then, you head back the way you came to Irún. The second part of the route takes place in town and along the Bidassoa 💧. You’ll pass by spots such as the Santa Maria Gate and the Roman museum 🏛️. After a few loops, well done champion! You’ve arrived at Urdanibia Square, where you can pick up your medal🏅.

GPX

Frequently asked questions (FAQ)

You can pick up your bib at the Runners’ Expo, which will be held on Plaza Ensanche in Irun on Saturday, February 27, 2027 from 10 a.m. to 8 p.m.

The races will start:

  • 10 km: start at 9:50 a.m.

  • Half marathon: start at 10:00 a.m.

Start from Paseo de Colón no. 6, Irun.

  • Half marathon: be at least 16 years old on 28/02/2027

  • 10 km: be at least 14 years old on 28/02/2027

Half marathon:

  • Phase 1 (first 200 registered): €24

  • Phase 2 (up to 500 registered): €29

  • Phase 3 (1500 registered): €34

  • Phase 4 (2400 registered): €39

10 km:

  • Phase 1 (first 150 registered): €19

  • Phase 2 (until November 16, 2026): €23

  • Phase 3 (until February 1, 2027): €27

Yes, here they are:

  • Half marathon: maximum time of 2h30

  • 10 km: maximum time of 1h10

Time checkpoints (half marathon):

  • Km 5: 35 minutes

  • Km 10: 1h10

  • Km 15: 1h45

  • Km 20: 2h20

  • Finish: 2h30

Half marathon: 5 stations planned roughly at the following kilometers:

  • 3.2 km

  • 7.5 km

  • 11.8 km

  • 14.9 km

  • 18.4 km

10 km: 2 stations planned roughly at the following kilometers:

  • 3.8 km

  • 7.3 km

A full refreshment station will also be available at the finish.

You can check the race rules here

Focus

Semi-Marathon de Bidasoa
Semi-Marathon de Bidasoa
Semi-Marathon de Bidasoa
Semi-Marathon de Bidasoa
Semi-Marathon de Bidasoa
Semi-Marathon de Bidasoa
Semi-Marathon de Bidasoa
Semi-Marathon de Bidasoa