Running
MARATHON
42.2 km
Start: 06:00 PM
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Race month
November · 9°–16°
Field size
0–9,000
Surface
asphalt
Distances
42.2k, 10k
Distances
Running
10 km
10 km
Start: 07:00 PM
Finish-time calculator
Your finish time
Slide to your target pace — and see when you’ll hit the line.
6:00
min / km
← faster · 2:0012:00 · easier →
4:13:10
Estimated finish · 42.2 km
10 km1:00:00
5 km30:00
Where am I when? · Splits
Start
0:00
5 km
30:00
10 km
1:00:00
15 km
1:30:00
20 km
2:00:00
Half
2:06:35
25 km
2:30:00
30 km
3:00:00
35 km
3:30:00
40 km
4:00:00
Finish
4:13:10
Estimates only · form, weather, and hills can change the result.
Course & climate
Typical weather in Osaka
Monthly averages based on historical data (2000–present).
November
16°9°
- Sunrise
- 06:33
- Sunset
- 16:54
Surface mix
- 100% asphalt
What to expect
What makes this race distinct — for training and race day.
The Sanspo Marathon is an annual marathon event held in Osaka, Japan, known for its festive atmosphere and inclusive nature, welcoming runners of all ages and abilities.
The field
0–9,000
Catering & aid stations
Verpflegung / Strecken- und Zielversorgung / aid stations
Pacers
Pacers will be provided for the '10km' and 'Half Marathon' events to support runners in achieving their goals.
Stay & get to the start
Getting there
Assumed starting point
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Estimating travel…
Hotels near the start
FAQ
When can I register for the Sanspo Marathon 2026?
Registration opens on May 16 for all events.
What is the course route for the Sanspo Marathon?
The marathon course starts and finishes at Osaka Castle Park.
Are there any age restrictions for participants?
No, the Sanspo Marathon is open to all ages, including infants in strollers.
What support will be available for runners during the race?
Aid stations and refreshments will be available along the course.
Is there a wheelchair accessible course?
Yes, a wheelchair accessible route is available for the Heartful Run.
Can I purchase official race photos?
Yes, official race photos can be purchased on the website.
What should I do if I lose my race bib?
Contact the event organizers to request a replacement bib.
Are there any special events or activities on race day?
Yes, there will be live music, food stalls, and entertainment throughout the event.
How can I get results for the Sanspo Marathon?
Results will be available on the official website after the race.
Is there a post-race celebration or party?
Details about post-race celebrations will be announced closer to the event date.
Last updated: Jun 11, 2026, 09:06:35 AM
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