25 hours of pain, suffering, laughing, eating, not sleeping, laughing more, and accomplishing something big.

Frog Hollow lays in the shadow of Gooseberry Mesa and Zion National Park just outside the town of Hurricane, Utah. Home Base is known as Frog Town, and it is the hub of all the excitement. The 25 hours in Frog Hollow is an end-of-season celebration on bikes. Bring your friends and enjoy camping, racing, and hanging by the fire.

Dirty 66 MTB Race at Fellows Lake

4 distances to choose from.

Come experience the fun, fast and flowy race that is the HEARTBREAKER.

This is the one must-do race of the year! The Heartbreaker course (at Creve Coeur’s Bootlegger Tail) is as fun as they come! However, this beginner friendly course demands your full attention; the trees and turns come quickly.

Keep your guard up or the HEARTBREAKER might just live up to it’s name.

The Heartbreaker MTB will be raced on Creve Coeur Park’s Bootlegger’s Trail

It is fast, tight, and will snag your handlebar to throw you down if not careful when threading the needle between trees. The course will run clockwise from the Start/Finish Area and is approx. 5 miles/lap.


Day two of Miner Tough Weekend is all about mountain bike racing with the 16th annual Leadbelt XC. The race travels through Historical Mining Property just south of Saint Louis at St Joe State Park in Park Hills Missouri. Race options include opportunities for 3 hour marathon, skill level categories, High School categories, and a class for those riding long travel bikes on XC trail.


The course is an eight mile per lap mix of beautiful Missouri hardwood forest, Pines, Creek Crossings, Open Savanna and of course a couple of rocks and roots.  Awards will be presented to the top 3 all categories with a few categories going 5 deep. Post race opportunities include help with recovery and refueling.


The Park has other amenities for you to take advantage of while there. Monsanto Lake is near race HQ and offers swimming, canoeing, kayaking and SUP. There are also ample picnic areas, a 12-mile asphalt bike path loop, the mining museum and more.

Register for both Run the Leadbelt 8 Mile (7/15) and Leadbelt XC Marathon class(7/16) for a chance to be the Miner Tough Champion! The top Male and Female will each be awarded the Championship.

The Dirty Donut is the first event of its kind to be held on dirt roads.  It offers four different distances of races, 10, 22, 41, and 61 miles, and welcomes a wide variety of cyclists.  Everyone from the very serious racer to those that just want a fun riding experience has a place at this event.

Serious racers will opt for the “Sprint” race, which is conducted much like any other gravel race and the winners are the first to finish.  “Donut” racers will opt for a bit more strategy in a race where the winner is oftentimes not the fastest rider, but the rider who can combine speed with how many donuts they can eat.  In the Donut races, each race distance has “donut stops” positioned along the race route.  Participants deduct five minutes from their final finish time for each donut they consume at one of our “donut stops” in the race.

The race will start and finish at Martin High School in Martin, Michigan.  A very beautiful high quality medal will be presented to everyone who finishes and we have even more hardware for our divisional and age-division winners!

There are so many ways for a person to win in this race it will make your head spin.  Be sure to check the awards page before registering so you have a complete understanding of all the ways you can win.

Choose between 20K, 50K, or 100K of leg-searing climbs.

The Life Time Little Sugar MTB presented by Mazda courses will start in Bentonville and travel north into Bella Vista, traversing the hollers and ravines of Little Sugar and Back 40. You’ll get a firsthand view of the unique bluff lines, caves, waterfalls, and iconic Ledges in the Ozarks!

Don’t be fooled – these trail systems offer grinding climbs that alternate with fasting rolling descents! While you’ll feel like you are in the middle of nowhere you’ll connect to Slaughter Pen as you make your way back home. A world-class urban trail system with clean flow lines, technical rock features, and a view of the picturesque Crystal Bridges Museum of American Art.

Bring your “A” game and compete on one of the most challenging mountain biking trails in the area at St. Charles County Parks first mountain bike race at Matson Hill Park. Participants choose from Cat 1, 2, 3, Marathon, and Junior categories and earn points toward the 2023 UFD standings. The race features significant elevation changes and flows that travel on fast, hard-packed, single track through woodlands, rock gardens, and creek crossings. Awards are given to the top finishers in each category. Pre-registration is required.

Greensfelder is one of Missouri’s hidden treasures. Tucked in West St. Louis County hills, Greensfelder offers something for all levels. It is some of the most fun and challenging singletracks in the region. GORC has continued to improve on this excellence by donating incredible volunteer hours to this trail and many others in the area. It is time to give back! DRJ Racing has teamed up with GORC and we are donating 100% of the profits to show our appreciation. So join us in racing some of the sweetest singletracks around and feel good about doing so knowing your entry fees will be going to a great organization!

Indian Camp Creek Park is St. Charle’s largest park (603 acres).  More than 10 miles of multi-use trails for hiking, biking, and equestrian use, Indian Camp Creek Park is a popular destination for many outdoor enthusiasts.

This race features fast, hard-packed singletrack through woodlands, prairies, and creek crossings.  The junior race will be held on a slightly modified, shorter loop, with several challenging spots for young riders.  A separate kids course will be available for kids 9 and under not competing in Junior’s race.

What better way to highlight an MES than by going to a location no one thought could be worthy of an enduro? Well… anyone who came for the “sneak peek” back in the fall knows that this enduro is legit. It has it all. Castlewood is a mix of old-school hiking trails that have evolved very little. What does this mean? Perfect enduro trails. Couple this with some little-known secrets and some MES sprinkling of raw lines at Zombie and we have the makings of a great enduro. Do you think you know this area? You don’t know SAS. We think you may never ride this area the same again once you race it.
The Missouri Enduro Series brings all of the components a racer expects. From never-before-seen raw cuts and challenging lines to shred down your favorite gravity-fed trails, a new-for-this-year team village, and a weekend atmosphere that couples music, friends, the outdoors, and the bike, we know you will not want to miss a single MES this coming spring.