The 2026 Muddy River Marathon has concluded.Share your finish2026 Results

Muddy River Marathon

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Cape Girardeau, MO, USA · May 2, 2026·
partly-cloudy-day43°·57° high·Breezy·Dry
10
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Muddy River Marathon race day weather

partly-cloudy-day
43°at start
64° high
Windy
Dry
Your goal
0:00:00

Cool start, steady conditions

Runners will face a cool start at 43°F, rising to 64°F by the finish. Wind will be from the SSW at 17 mph, creating a consistent headwind throughout. With humidity at 65%, runners should maintain a steady pace and stay hydrated, particularly as temperatures rise later in the race.

cloudy10
clear-night10
clear-night10
partly-cloudy-day10
cloudy10
partly-cloudy-day10
partly-cloudy-day9
clear-day7
partly-cloudy-day7
partly-cloudy-day8
partly-cloudy-day7
cloudy8

Pace Calculator

26.2mi
0:00:00
HH:MM:SS
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Common Goals:

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Muddy River Marathon route and elevation

The Muddy River Marathon course has about 1,038 ft (316 m) of climbing and 1,062 ft (324 m) of descent, a net drop of about 24 ft (7 m). It is hillier than 60% of the marathon courses racecast.io has mapped, measured by what the hills cost in time. The hardest mile is mile 9, with 92 ft (28 m) of climbing.

Biggest climbs

  • Miles 5.9 to 6.6: climbs about 110 ft (33 m).
  • Miles 21.2 to 22.2: climbs about 80 ft (25 m).
  • Miles 23.9 to 24.4: climbs about 75 ft (23 m).

What the hills cost

  • 3:30 on a flat course is about 3:31 here (1 minute slower).
  • 4:00 on a flat course is about 4:01 here (1 minute slower).
  • 4:30 on a flat course is about 4:32 here (2 minutes slower).

Hills only, priced mile by mile on the course map. The pace calculator above adds the race-day weather.

Even-effort splits for a 3:30, 4:00 or 4:30 finish
The Muddy River Marathon mile splits at even effort for three finish times, with each mile's climb and descent
MileClimbDescent3:304:004:30
125 ft41 ft7:549:0210:09
249 ft30 ft8:079:1710:27
331 ft21 ft8:039:1210:21
469 ft46 ft8:109:1910:29
547 ft59 ft7:559:0310:11
620 ft31 ft7:559:0310:11
7102 ft83 ft8:089:1810:27
840 ft44 ft7:579:0510:14
992 ft70 ft8:099:1910:28
1091 ft72 ft8:089:1710:28
1124 ft100 ft7:418:479:53
124 ft14 ft7:559:0410:11
1341 ft40 ft7:599:0710:15
1428 ft19 ft8:039:1110:21
1561 ft74 ft7:559:0310:10
1630 ft6 ft8:109:2010:30
1740 ft28 ft8:049:1310:23
1826 ft36 ft7:559:0410:11
1948 ft40 ft8:029:1110:20
2052 ft29 ft8:109:1910:30
2136 ft44 ft7:569:0410:12
2277 ft19 ft8:279:4010:51
2350 ft84 ft7:508:5710:05
2442 ft66 ft7:529:0010:07
2572 ft63 ft8:039:1110:21
2634 ft55 ft7:539:0110:08
Last 0.20 ft38 ft1:391:532:07

Explore the Muddy River Marathon course with the weather and your pace along the route, or compare it with other races.

About the Muddy River Marathon

The course passes several Cape Girardeau landmarks, including the Bill Emerson Memorial Bridge, the Common Pleas Courthouse, Dalhousie Golf Course and Old St. Vincent's Church, finishing along the Mississippi riverfront downtown near the Missouri Wall of Fame mural. The course is mostly flat, on city streets and paved trails. Proceeds benefit local nonprofits, including the Green Bear Project, Southeast Kids in Action, Graceful Opportunities and the Howard Aslinger Foundation; organizers have donated more than $100,000 to regional charities since the race began in 2021. The 2026 edition was cancelled due to street construction along the course route, with the race planning to return in 2027. Source

Race weekend

Saturday, May 2
6:00 AMMarathon (26.2 mi)
7:00 AMHalf Marathon (13.1 mi)
7:00 AMHalf Relay (13.1 mi)

Muddy River Marathon FAQ

When is the 2026 Muddy River Marathon?

The 2026 Muddy River Marathon will be held on Saturday May 2, 2026.

What is the time limit for the Muddy River Marathon?

The time limit for the Muddy River Marathon is 7 hours.

What will the weather be like for the 2026 Muddy River Marathon?

The forecast calls for a high of 64°F and a low of 43°F with a 0% chance of rain.

What is the elevation gain of the Muddy River Marathon?

The Muddy River Marathon course has about 1,038 ft (316 m) of climbing and 1,062 ft (324 m) of descent, a net drop of about 24 ft (7 m). It is hillier than 60% of the marathon courses racecast.io has mapped, measured by what the hills cost in time.

Is the Muddy River Marathon hilly?

Moderately. It has about 40 ft (12 m) of climbing per mile. The hardest mile is mile 9, with 92 ft (28 m) of climbing. 4:00 on a flat course is about 4:01 here (1 minute slower).

What is the weather usually like for the Muddy River Marathon?

Over the 6 years racecast.io has race-day weather for (2021 to 2026), it averaged 57°F at the start and 65°F by a typical finish. Rain fell during race hours in 1 of those years (2025).

What was the hottest Muddy River Marathon?

Of the 6 years on record, 2024 was the warmest, reaching 74°F during race hours. The coldest start was 2026, at 43°F.

What was the windiest Muddy River Marathon?

Of the 6 years on record, 2022 was the windiest, with wind averaging 14 mph during race hours. The calmest was 2024, at 3 mph.

Muddy River Marathon weather history

Based on 6 years of data
Avg Temp
61°F
L:57° H:65°
RunScore
7
Conditions
Rain Freq
17%
1 of 6 yrs
Wind7mph
Dew54°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
clear-night
43°/57°-
10
2025
cloudy
58°/59°Light
7
2024
partly-cloudy-day
63°/74°-
4
2023
cloudy
58°/59°-
7
2022
clear-night
68°/72°-
4
2021
clear-night
54°/66°-
8