Thinking about running your first 100-mile race but not feeling confident?
Find a pacer to make it a little easier and a lot more fun!
Running 100 miles is tough, but you don’t have to do it alone. A pacer can keep you motivated, on track, and moving forward when things get tough.
Connect with experienced runners who can guide you through the highs and lows of your race!
Become a Pacer
Having completed a 100-mile (or two), you know what it takes.
Help fellow runners achieve their goals by pacing or crewing!
Pacing is more than just running alongside—it's about motivation, strategy, and support.
Share your experience, help others push through the tough miles, and be part of their success story!
Connect with Runners
Looking for a few fellas to be part of your next big trail adventure out there?
Share your event and connect with other runners to make it happen.
Running is better together!
Find training partners, crew members, or pacers for your next big race.
Share your plans, connect with like-minded runners, and turn solo adventures into unforgettable experiences.
Run Square is all about bringing runners together!
Whether it’s pacing, crewing,
offering a place to stay, sharing tips, helping with transportation, or providing moral support, there’s
always a way to lend a hand.
This is your place to connect and make a real difference in a
runner’s journey.
Inspired to join the Run Square community? See how it works and get ready to connect!
See Run Square in Action
Check out these screenshots to see how Run Square helps runners connect and achieve their goals.
Ready to take your running to the next level? Download Run Square today and start your journey!
From the Blog
Check out our latest articles below, and visit our blog for even more.
Check out these top picks for your next running challenge.
Hardrock 100
Fri, Jul 11, 2025 • Silverton, CO
The Hardrock Hundred Mile Endurance Run is an ultramarathon of 102.5 miles in length, plus 33,197 feet of climb and 33,197 feet of descent for a total elevation change of 66,394 feet, at an average elevation of over 11,000 feet. The run is held on a loop course on 4WD roads, dirt trails, and cross country in Southern Colorado's San Juan Range, USA. In 2025, the run will be in the counter-clockwise direction.
Runners may have only one pacer on course with them at a time. Pacers may meet their runners at crew access aid stations only.
☀️SUMMER OF LOVE 2025💗
sol iz EPIC
sol iz CHALLENGING
sol iz FUN! & HOT! & NAKED! & HILARIOUZ!
SOL iz the SUMMER CHALLENGE YOU NEVER ASKED FOR BUT STILL LOVE!!
GET YOUR TEAM OF 3 or 4 running RATZ and get ready for GLORY!
Thiz will test you physically, mentally, and morally! It will also bond your team for eternity or at least 60ish dayz!
Challengez link will be shared on 7/11!
RODR
Tall trees. Tough trails.
A 100-mile endurance race through Washington’s Cascade mountains.
Pacers can start at Hyak (54m).
Pacers must be on foot (no mountain bikes) except from Silver Creek to the finish line. One pacer per runner except from Silver Creek to the finish line.
Runners with pacers should still carry their own gear (no Leadville muling).
Come explore the wild west of Montana! A Western States Qualifier! With around 23,000 ft of vertical gain reaching heights of 10,200 ft. Point to Point. Primarily single track. Extreme technical descents and ascents. Long sections with no trail, two track, and the occasional forest service road, this event is one of a kind. The course is considered extremely rugged, extreme exposure, and challenging.
Pacers are allowed starting at Half Moon Aid Station.
No Muling.
Only one pacer at a time allowed with their runner.
The Tushars Mountain Runs feature 100 Kilometer, 70 Kilometer, Marathon and Half Marathon distances.
One of the toughest, most spectacular mountain races in all of North America in a little known mountain range near Beaver, Utah. The Tushar Mountains are a hidden gem of high altitude peaks, mountain canyons, alpine lakes and stunning terrain. Come find out for yourself why this is a MUST DO race.
The Tushars Mountain Runs are staged out of Eagle Point Resort at an elevation of over 10,000 feet.
Crews are welcome at Big John Flat, this meadow is situated near Skyline Aid. Crews can park anywhere in this area as long as they are not blocking the road. 100K runners will run through this stretch twice times. Crews are also welcome at Bullion Pasture and Big Flat Aid Stations (not to be confused with Big John Flat).
Pacers for the 100K runners are allowed to join/leave their runners at Bullion Pasture (mile 37.9) and Big Flat (mile 54.5). Pacers DO NOT need a bib, but need to carry the same required gear. Pacers are welcome to all aid station fare.
This is it. The Race of All Races. Where it all began.
Across the mighty peaks of the Colorado Rockies, a legendary wind whistles. Immersed in 10,000+ feet of Cloud City magic, Leadville calls.
Pacers can pick up their runners at any point on course beginning at Twin Lakes inbound at mile 62.
You may have as many pacers as you wish, although only one pacer at a time (until mile 99).
Pacers may act as burros, to carry food and equipment for their runner.
Pacers are not allowed to push, pull, carry or tow the runner.
The Mogollon Monster 100 is a rugged, challenging trail race taking place about 90 minutes northeast of Phoenix, Arizona just outside the small town of Pine, Arizona. The Mogollon Monster includes the advanced degree endurance race of 100 miles, with the addition of a 42 Kilometer race on Sunday.
You are allowed ONE (1) crew vehicle per runner. When you pick up your bib, you will be supplied with a crew pass with your bib number on it that must be present on the dash for the entire race.
The Mogollon Rim itself poses a large obstacle for crewing this race. We have learned over the years that it does not make sense or is actually close to impossible to drive between some aid stations in time to see a runner since you must drive all the way around the rim to go up or down it. While most are easily accessible, they often require a great deal of driving to get to each. We ask that you please abide by our crew locations so that we can all have a safe and enjoyable race experience.
This scenic, mountain course runs around the northern half and western edge of the Paunsaugunt Plateau, offering spectacular views above and below the hoodoos. The race is run at high elevation, with most of the miles on this rugged course between 7,000 – 9,000 ft.
60K Ultra: Crew only allowed
50 Mile Ultra: Crew & pacers allowed
100 Mile Ultra: Crew & pacers allowed
Multiple pacers allowed over duration of race.
One pacer allowed on course at a time.
2-3 crew members allowed at aid stations at the same time.
Enjoy 240 miles of beautiful terrain as you travel through desert, canyons, slick rock, and two mountain ranges — all while surrounded by Canyonlands and Arches National Park.
We encourage friends, family, and the running community to get involved in the run by pacing.
Pacers are for runner safety and company only, not for giving aid or to gain an advantage over another runner.
Pacing starts at the Indian Creek Aid Station. Pacers are only allowed to be picked up or dropped off at crew access aid stations.
100 Mile, 100K, 50K, 25K and 10(+) Mile Race
Join us for the Pumpkin Holler Hunnered race on October 18th & 19th. You will agree we have found a little slice of heaven in Cherokee County, nestled along the beautiful Illinois River.
Pacers will be allowed for all 100 mile and 100K runners AFTER the first 50K loop is completed.
Each runner may have as many pacers as they like, however only one pacer at a time can accompany the runner.