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Welcome to the world’s best multi-day, multi-state Running Series!

2020 Race Schedule Changes.

The Dust Bowl, Riverboat, Independence, and Alaska Series will NOT take place in 2020.

The 2020 New England Series is being postponed to August 30 – September 5, 2020.

We understand that these cancellations, along with so many others, have been disappointing and frustrating; they have been for us as well. Each of our Series cancellations has been preceded by careful deliberation, including consultation with the permitting authorities, reviewing CDC recommendations, state travel restrictions, and evaluating additional safety measures to provide a safer event for all. We’re continuing to communicate with the permitting authorities for all of the remaining 2020 Series (Northwest, Center of the Nation, New England, Prairie, Summer Camp, Heartland, Appalachian, and Southwest).We are hopeful to have all of our remaining Series as scheduled. Our next scheduled Series is the Northwest Series in August. If additional schedule changes are required, we’ll announce on MainlyMarathons.com, corresponding Facebook Groups, and emails to registered participants of impacted Series.

As you might know, we offer free deferrals for any reason, which allows you to transfer your race credit to a future year of this series or any of our other 80+ races (Aloha and Alaska Series requires a small “upgrade” fee). The deferred race credit never expires, so there is no hurry to make plans. However, when you do decide on the race(s) you’d like to transfer the credit to, please mention the Series that the race credit originated when you email us at MB@MainlyMarathons.com.


Thanks for your understanding, and happy and healthy running,

The Mainly Marathons crew!

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

Gift Card We’re offering a limited run of Gift Cards! Each Gift Card is good for either 10 Half Marathons or 10 Marathons. With the Gift Cards, you no longer have to worry about price increases. The Gift Cards never expire. Get them before they’re gone, since there is a very limited supply!


10 Half Marathons – $750

10 Full Marathons – $900

To order, contact MB@MainlyMarathons.com

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.

Running Ragged: 20in20

Are you loony enough to try 20 races in 20 days?! Mainly Marathons is excited to announce our most epic adventure yet, Running Ragged: 20in20!

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!

Have you ever wanted to see how far you can push yourself, how many races in a row you can run?!

Join us for one of our Running Ragged events. Our Running Ragged events are a combination of two or three of our series without a break. That means you can do 11+ races in as many days! Each year, we’ll have one or two Running Ragged events. Completing all days of a Running Ragged events earns you bonus bling, such as epic belt buckles!

Here’s the current list of Running Ragged streakers: Ila Brandli, Stacey Kozel, Ed Del Favero, Jim Simpson, and Kevin Brosi.

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.21-Sunday, Jan.24, 2021
Gulf CoastFL, AL, MS, LA, TXSaturday, Feb.8-Wednesday, Feb.12, 2020
NorthwestOR, WA, IDSaturday, Aug.8-Thursday, Aug.13, 2020
Center of the NationCO, NE, WY, SD, ND, MTMonday, Aug.17-Saturday, Aug.22, 2020
New EnglandPA, CT, RI, MA, VT, NH, MESunday, August 30-Saturday, September 5, 2020
HeartlandOH, MI, IN, IL, IA, WI, MNSaturday, Sept.12-Friday, Sept.18, 2020
Summer CampSt. Cloud, MNSaturday, Sept.19-Thursday, Sept.24, 2020
PrairieMN, ND, SD, IA, NE, KS, MOFriday, Sept.25-Thursday, Oct.1, 2020
AppalachianWV, VA, TN, NC, SC, GA, ALSaturday, Oct.17-Friday, Oct.23, 2020
SouthwestNM, CO, UT, AZ, NV, CASunday, Nov.8-Friday, Nov.13, 2020
Click to view and print our full calendar.


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