Greater St. Louis Marathon
St. Louis, United States of America · Saturday 24 October 2026
The marathon event associated with St. Louis has its roots in the 1904 Olympic Games, the first time the Olympics were held in the United States and the first Olympic marathon run on American soil. This marathon was conducted as part of the Louisiana Purchase Exposition, also known as the 1904 World's Fair, held in St. Louis to commemorate the centennial of the Louisiana Purchase. The course for the 1904 marathon was approximately 24.
Difficulty Calculator
h
:m
:s
Adjusted Time
4:46:05
Time difference: +46.1 minutes compared to a flat, road, temperate course.
Course Details
Elevation Gain300m
Elevation High171m
Elevation Low123m
Weather Forecast
High22°C
Low9°C
Chance of Rain6%
How hard is Greater St. Louis Marathon?
Very Difficultharder than 93% of marathons
Flattest / easiestHardest
On our difficulty model, Greater St. Louis Marathon plays about 45 minutes slower than an average road marathon for a 3:30 runner. It ranks #76 hardest of 1150 marathons we analyse, and #29 of 575 in United States of America. Use the calculator above to see the exact adjusted time for your own goal pace.
What will you run at Greater St. Louis Marathon?
Estimated finish times on this course versus the same effort on an average road marathon, based on its elevation, surface, and expected race-day temperature.
| Average-course time | On Greater St. Louis Marathon | Difference |
|---|---|---|
| 3:00:00 | 3:34:36 | +34:36 |
| 3:30:00 | 4:10:22 | +40:22 |
| 4:00:00 | 4:46:05 | +46:05 |
| 4:30:00 | 5:21:49 | +51:49 |
| 5:00:00 | 5:57:36 | +57:36 |
| 5:30:00 | 6:33:29 | +1:03:29 |
| 6:00:00 | 7:09:27 | +1:09:27 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Greater St. Louis Marathon 2026 Course Analysis
Greater St. Louis Marathon is a full marathon held in St. Louis, United States of America. It is scheduled for Saturday 24 October 2026. The course is run on trail surface with 300m of total climbing, with its high point near 171m above sea level. For registration and full race details, visit the official Greater St. Louis Marathon website.
Elevation Profile
This is a hilly course with 300m of total climbing, rising to around 171m above sea level. It pays to train on hills and to pace the climbs conservatively.
Expected Race Day Weather
Based on historical weather data for October, the expected race day conditions are as follows. Moderate temperatures between 9°C and 22°C are expected. While comfortable for most runners, those targeting fast times should pay attention to hydration, as these temperatures can impact performance on race day. There is a low chance of rain (6%), so dry conditions are likely.
Surface Type: Trail
Greater St. Louis Marathon is a trail race, meaning the course includes unpaved surfaces such as dirt, gravel, or forest paths. Trail surfaces are usually slower than the road equivalent - often by 10-20% - because of uneven footing, technical sections, and frequently steeper gradients, though a smooth, non-technical or downhill trail can run faster than that suggests. Trail-specific shoes with good grip are recommended.
Looking for an easier marathon or a tougher challenge? You can also compare Greater St. Louis Marathon against other marathons to find the right race for your goals.
Marathons of similar difficulty
If Greater St. Louis Marathon fits your goal, these courses play out about the same on our difficulty model.
Other Marathons in United States of America
Big Island International Marathon
Hilo, United States of America
Road0m gainSept 2026
We Run this Beach Marathon
Gulf State Park, United States of America
Trail97m gainSept 2026
Big Beach Marathon and Half Marathon
Gulf Shores, United States of America
Road56m gainSept 2026
Big Beach Marathon
Gulf Shores, United States of America
Trail96m gainSept 2026
Marquette Marathon
Marquette, United States of America
Road107m gainSept 2026
Labor of Love Marathon
Las Vegas, United States of America
Road0m gainSept 2026