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River Rat Marathon

Yankton, SD

Race Dates

2018: TBD
2017: Saturday, April 22, 2017

Course Information

Profile: Rolling Hills
Type: Mostly Loop
Surface: Road/Pavement
Certified?: Yes

Race Day Weather

Mean Temp.: 41°F (5°C)
Average High: 63°F (17°C)
Average Low: 38° F (3°C)

Historical Weather

PR Score & Course Score

PR Score: 98.60
Course Score: 98.60

Race Size

2018: No Results
2017: 41 Finishers
2016: 59 Finishers

BQ Percentages

2018: N/A
2017: 9.8%
2016: 1.7%

Miscellaneous Information

Pace Groups?: No

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Course Description

The slightly rolling River Rat Marathon starts at Riverside Park in Yankton and travels out onto the trails to the Lewis & Clark Lake campgrounds. The course then goes around Lake Yankton and back to the Riverside Park for the finish.

Marathon Rankings

The River Rat Marathon was the th largest marathon in the U.S. last year and was the th largest in 2016.

Last year 9.8% of finishers qualified for the Boston Marathon and 1.7% of runners qualified for Boston in 2016.

This gives the River Rat Marathon the th highest percentage of Boston Marathon qualifiers in the U.S. last year and the th highest percentage in 2016.

Its Course Score of 98.60 ranks it as the th fastest marathon course in the U.S. and the th fastest course in South Dakota.

The typical race time temperature and humidity levels are within the ideal range for optimal marathon performance. This, coupled with the Course Score, gives the River Rat Marathon a PR Score of 98.60. This PR Score ranks it as the th fastest marathon in the U.S. and the th fastest in South Dakota.

Learn more about PR Scores and Course Scores on the FAQ page.

Elevation Chart

Max Elevation: 1288 feet (392m)
Min Elevation: 1163 feet (354m)


Ratings & Reviews: None

Finish Time Equivalent

If you ran the River Rat Marathon in 4:10:00, what would your time in the Boston Marathon be?

See how your race times would compare on other marathon courses using the Marathon Time Converter Tool.