Race certified by Finishers: event approved by the organizer

Bidassoa Half Marathon 2027

« Speed through the scenic Basque landscape! »
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The event in a few words

Feel like lacing up your Basque-sneakers 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 PB? This is the place 📍. What makes this race unique is that it runs along the border between France and Spain for almost the entire route 🇪🇸. At the same time, that boundary is formed by... the Bidassoa River, hence the race’s name! 💦

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 push the watts ⚡️, because a route with zero elevation gain is waiting for you 🤩. On the agenda: 21 km of pure enjoyment between spruced-up Basque façades, historic alleys and seaside panoramas by the water 🌊. But this event isn’t a leisurely stroll ❌. Let’s just say if you’re only just starting out in running, these Basques aren’t the ones you want to mess with 😈. With a 2h30 cut-off time and 5 checkpoint splits to meet, you’ll have to hold the pace—even if you’re not trained enough! 🤪 Starting from Irún, you’ll head up to the bay of Hondarribia, offering you an unbeatable view of Mount Jaizkibel ⛰️. The event also offers a 10 km course if you prefer short, intense distances 💥. As a bonus, this race supports Mi Dulce Guerrero, an association founded in Irún that fights type 1 diabetes. The funds raised will be donated 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’ve had it up to here, I want to go home 😫”. Come onnn, a bit of motivation—the Basque Country is waiting for you with piping-hot pintxos 😋. Go and devour chipirons a la plancha, melting croquetas, or a good Espelette axoa on a terrace, with a local craft beer or a chilled glass of txakoli 🍷. And if you really want that post-race nap, head to 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 awaits you to digest all that ⛰️.

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 record? Here, it’s possible 🤩. The route is certified by the RFEA, so 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 🫶
The funds collected will be donated to “Mi Dulce Guerrero”, an association dedicated to researching a treatment for type 1 diabetes, or childhood diabetes. Born in Irún from the mobilization of families affected by the disease, it has already funded more than €45,000 in research since its creation. And that’s worth a blister or two 😊.
For the beauty of the region 😍
You’ll run 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 to refuel 😴. Stroll around Irun or Hendaye for a good plate of chipirons, generously topped pintxos, or a giant txuleta to share 😋. Enjoy the sea, go for a dip at the beach, wander through the lively streets of Hondarribia, or climb up 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 the Paseo de Colón in Irun 📍. The route follows the Bidasoa River towards Hondarribia, all the way to the end of the harbor in the Bay of Hondarribia 😍. Then, you retrace your steps back to Irún. The second part of the route takes place in the city and along the Bidasoa 💧. You’ll pass by spots like the Santa Maria Gate and the Roman Museum 🏛️. After a few loops, well done champ! You’ve arrived at Urdanibia Square where you can pick up your medal🏅.

GPX

Frequently asked questions (FAQ)

You’ll be able to pick up your bib at the Runner’s Expo, held on Plaza Ensanche in Irun on Saturday, February 27, 2027 from 10am to 8pm.

The races will start:

  • 10 km: start at 9:50am

  • Half marathon: start at 10:00am

Start from Paseo de Colón nº6, Irun.

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

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

Half marathon:

  • Phase 1 (first 200 registered): €24

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

  • Phase 3 (1,500 registered): €34

  • Phase 4 (2,400 registered): €39

10 km:

  • Phase 1 (first 150 registered): €19

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

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

Yes, here they are:

  • Half marathon: maximum time of 2h30

  • 10 km: maximum time of 1h10

Time limits (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
Semi-Marathon de Bidasoa