
Bettendorf, United States of America · Sunday 7 February 2027
The event is held annually in early February and offers runners a road race through the unique landscape of the Mississippi Delta, with a route that begins in Arkansas and crosses into Mississippi. The course is known for being extremely flat with the main exception being the crossing of the Greenville Bridge over the Mississippi River.
Adjusted Time
4:40:27
Time difference: +40.4 minutes compared to a flat, road, temperate course.
On our difficulty model, Mississippi River Marathon plays about 45 minutes slower than an average road marathon for a 3:30 runner. It ranks #79 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.
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 Mississippi River Marathon | Difference |
|---|---|---|
| 3:00:00 | 3:38:08 | +38:08 |
| 3:30:00 | 4:09:32 | +39:32 |
| 4:00:00 | 4:40:27 | +40:27 |
| 4:30:00 | 5:10:58 | +40:58 |
| 5:00:00 | 5:41:11 | +41:11 |
| 5:30:00 | 6:11:06 | +41:06 |
| 6:00:00 | 6:40:47 | +40:47 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Mississippi River Marathon is a full marathon held in Bettendorf, United States of America. It is scheduled for Sunday 7 February 2027. The course is run on trail surface with 66m of total climbing, with its high point near 67m above sea level. For registration and full race details, visit the official Mississippi River Marathon website.
This is a very flat course, with only 66m of total climbing and little change in altitude throughout. Flat profiles let you hold an even pace from start to finish, which makes this a fast, PB-friendly race.
Based on historical weather data for February, the expected race day conditions are as follows. Cold conditions are expected, with temperatures between -11°C and -1°C. While cold weather reduces overheating risk, runners should dress in layers and be prepared for potential wind chill. There is a low chance of rain (0%), so dry conditions are likely.
Mississippi River 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 Mississippi River Marathon against other marathons to find the right race for your goals.
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