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Welcome to the world’s best multi-day series!

Mainly Marathons has over 80 events across 14 series taking place in all 50 states!

Buy a Race and Get One Free!

Register for one race and get your next race of equal (or lesser) value FREE! One free race per customer who has not already had a free race. Free race must be used in the same series of a paid race. Before registering, email MB@MainlyMarathons.com for details.

All of our races include a 50K option, with a time limit of 9:30. Just register for the marathon and upgrade at Packet Pickup for $10!

Are YOU a Mainlyner?

If you participate in Mainly Marathons events, you are, and we want to reward your efforts!

We give awards for completing half marathons or longer at 25, 50, 100, and 200 races with Mainly Marathons! All awards will be updated June 2018 to custom-made plasma cut sculptures (includes custom metal-stamped nameplate)! In order to be added to the Mainlyner’s List, please submit your list of completed Mainly Marathons’ races (half marathon or longer) totaling 25 or more. We’ll keep track of your Mainly Marathon race total thereafter.

Questions or corrections, please email MB@MainlyMarathons.com.

And click HERE to view our top Mainlyners!

Still on the fence? Our amazing and LOONY running community is comprised of the kindest, most supportive, and toughest runners in the world. They make Mainly Marathons events so much fun. Check out these testimonials to hear why so many runners return to Mainly Marathons over and over again!

Thousands of happy runners agree, Mainly Marathons is simply the best marathon series on the planet!

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If running with us isn’t Loony enough, we have a “Double Down” option to run two races in one day and to earn even more medals!

After the completion of your race, you may run another. BUT the second race will be limited to a 5K or 10K.
AND you may purchase your second race at HALF-PRICE. You may purchase this second race in advance or on race day.
BUT you must be able to complete both races within the 50K time limit and the longer race must be run first.

For those of you thinking “This is MADNESS, why would anyone want to do two?” The answer is, “Yes, this is a tad beyond normal, but our runners are asking for this option.. For example, they are doing a 5K after their marathon, 10K after a half.”

Contact Daniel@MainlyMarathons.com with any questions.

You’ve seen them on the course. They rarely win, but you always see them out there running, and running and running. And sometimes walking.

These events were inspired by and designed for them, and for those who just want to run long and run often.

Whether you want to participate in one marathon, half-marathon, or 5K, pick up a couple of new states in your quest to finish all 50, or you want to take the ultimate challenge and run every race in a series, we encourage you to join us. Walkers are just as welcome as runners: none of our races have a time limit, and you never need to worry about whether you’ll make it before the course support has packed up and gone home. (In fact, we have become famous for celebrating last place in every race with the now-coveted caboose!)

Mainly Marathons puts on a race series like no other, from the unique course setup to the unparalleled spread of food and drinks to fuel you on your journey, all mixed with a sense of fun and family you just won’t find anywhere else.

Check out our schedule to see where we’ll be, then sign up on our simple registration page.
Feel free to contact us if you have any questions.


Peace and Toudaloo!
Jesse and Daniel Rueckert

ALL of our races include a 50K, full marathon, half marathon, 10K, and 5K.
AlohaKaua'i, HIThursday, Jan.24-Sunday, Jan.27, 2019
Gulf CoastFL, AL, MS, LA, TXSaturday, Feb.16-Wednesday, Feb.20, 2019
Dust BowlTX, NM, OK, KS, COWednesday, Mar.20-Sunday, Mar.24, 2019
RiverboatLA, AR, MS, TN, KY, MO, ILSunday, Apr.7-Saturday, Apr.13, 2019
AlaskaJuneau, AKThursday, June 6-Sunday, June 9, 2019
IndependenceDE, MD, PA, NJ, NYTuesday, June 18-Saturday, June 22, 2019
New EnglandPA, CT, RI, MA, VT, NH, MESunday, June 23-Saturday, June 29, 2019
HeartlandOH, MI, IN, IL, IA, WI, MNSunday, July 7-Saturday, July 13, 2019
Minnesota Brothers Trail SeriesSt. Cloud, MNSunday, July 14-Wednesday, July 17, 2019
PrairieMN, ND, SD, IA, NE, KS, MOSunday, July 21-Saturday, July 27, 2019
NorthwestOR, WA, IDSaturday, Aug.10-Thursday, Aug.15, 2019
Center of the NationCO, NE, WY, SD, ND, MTMonday, Aug.19-Saturday, Aug.24, 2019
AppalachianWV, VA, TN, NC, SC, GA, AL, FLSaturday, Oct.5-Saturday, Oct.12, 2019
SouthwestNM, CO, UT, AZ, NV, CASunday, Nov.10-Friday, Nov.15, 2019
Click to view and print our full calendar.


We reserve the right to refuse registration and participation in our events.

Click to view our NEW edition of The Loony Bin newsletter!

Check out the amazing aerial video shot by a drone flown over our course in Clayton, NM, during the 2015 Dust Bowl Series!
Click HERE to video the full-sized video on our YouTube channel.

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Mainly Marathons | 1239 2nd Street N, #308 | Sauk Rapids, MN 56379 MB@MainlyMarathons.com