Races Marathon · San Sebastián (Donostia), Spain
San Sebastián Marathon
San Sebastián Marathon is a flat marathon in San Sebastián (Donostia), Spain, held each November. The organiser describes a fully urban, flat course at sea level through the Centro, Antiguo, Amara and Gros districts, passing the Concha promenade, with a flat finishing straight of over 1 km. Late November is cool and often damp on the Basque coast, typically 8 to 15°C. The San Sebastián Marathon's flat profile means your pacing discipline, not the terrain, decides the day.
Page rebuilt 2026-11-14 · race facts not independently verified — confirm dates and entries on the official race site
When
November
next: Sunday 22 November 2026
Course
flat
Marathon
Conditions
Late November is cool and often damp on the Basque coast, typically 8 to 15°C.
Racing this course well
The organiser describes a fully urban, flat course at sea level through the Centro, Antiguo, Amara and Gros districts, passing the Concha promenade, with a flat finishing straight of over 1 km.
The San Sebastián Marathon's flat profile means your pacing discipline, not the terrain, decides the day.
Getting a place
- How you get in
- Open entry: first come, first served
- Price
- From €59, rising in steps to €95 as bibs sell (2026 edition) (2026 race)
- Does it sell out?
- YesThe organiser announced a sold-out sign for the 7,000 marathon bibs in June 2026.
- Places
- 7,000 runners
Official San Sebastián Marathon site →Checked November 2026
Race day
- Next race
- Sunday 22 November 2026
- Start time
- 09:00
- Pacers
- Pace groups for 2:45, 3:00, 3:15, 3:30, 3:45, 4:00, 4:30 and 5:00
- Also on the day
- 10k
The course in numbers
The course starts at Calle Hernani by the town hall, follows the Concha promenade, passes Anoeta stadium and the Kursaal, and ends on a flat straight of more than 1 km at the Boulevard.
Worth knowing
- First run in 1978.
- Organisers call it the second-oldest marathon in Spain, after Madrid.
- Runners without a valid athletics licence pay an extra €5 for a one-day licence.
Pick your goal for San Sebastián (Donostia)
Pace charts, weekly structure and timelines for the most common marathon goals:
The date shown is the one the organiser has announced. Change it if yours differs.
Build your training around San Sebastián Marathon.
RunV works backwards from race day to today. Your plan adapts when life interrupts, and you approve every change. It does not adapt to this specific course — the pacing guidance above is where the course knowledge is.
Everything above stays free and complete — this is an optional next step, not a paywall.
Asked often
- When is the San Sebastián Marathon?
- The next San Sebastián Marathon is on Sunday 22 November 2026 in San Sebastián (Donostia), Spain. It is held each November.
- Is the San Sebastián Marathon course flat?
- The organiser describes a fully urban, flat course at sea level through the Centro, Antiguo, Amara and Gros districts, passing the Concha promenade, with a flat finishing straight of over 1 km.
- How do I enter the San Sebastián Marathon?
- Open entry: first come, first served. Price: From €59, rising in steps to €95 as bibs sell (2026 edition) (2026 race).
- Does the San Sebastián Marathon sell out?
- Yes. The organiser announced a sold-out sign for the 7,000 marathon bibs in June 2026.
- How should I train for the San Sebastián Marathon?
- Build for the course you'll actually race at the San Sebastián Marathon: flat terrain, November conditions. RunV Premium builds a training plan around your goal time and race date, and lets you adapt it when life interrupts the San Sebastián (Donostia) build.
Not sure what to target? Predict your marathon time from a recent race →
More marathon races
Supplements research for this distance
Build for San Sebastián (Donostia) — around your actual life
RunV engineers your block backwards from race day in November — and adapts it when training doesn't go to script. You approve every change.
