Cape Cod

Choose your distance.
Choose run or ruck.
Challenge yourself.

Saturday, October 24, 2026

A timed endurance challenge on a 5K course
Choose to run or ruck and complete a 5K, 10K, or
push your limits and see how far you can go in 6-hours.

Run it or ruck it.

REGISTRATION COMING SOON

Choose Your Challenge

STEP 1:

CHOOSE YOUR DISTANCE

5K: One lap. Great for first-timers, fast runners, and anyone who wants to send it.

10K: Two laps. The sweet spot - competitive, challenging, and super doable.

Relentless 6-Hour Endurance Challenge: Complete as many 5K laps as possible in 6 hours- only complete laps count toward total distance. This is the long-game option: pacing, grit, and staying disciplined when it gets hard.

STEP 2:

CHOOSE TO RUN OR RUCK

RUN: Run it like a traditional 5K, 10K, or 6 Hour Race. No weight- just run.

RUCK: 30lb (Men)/20lb (Women)

All Ruck weights are dry weight and do not include water. See below for more details on ruck standards and rules.

*Participants must choose Run or Ruck at registration. Divisions cannot be changed on race day.

STEP 3:

REGISTER!

COMING SOON: This event is part of Cycling The Series- a weekend festival including a gravel bike ride, road bike ride, and The Relentless Run & Ruck Challenge. On the registration site, just scroll to Relentless Run & Ruck Challenge and choose your distance/event and register! COMING SOON.

STEP 4:

TRAIN!

This is the fun part! Get out there run, ruck, lift, train. Need some extra suggestions- check out Relentless Run & Ruck Club and get FREE weekly workouts including Just Run, Just Cardio, Just Ruck, and Relentless Ruck.

REGISTRATION COMING SOON

Weight Rules & Approved Ruck Setup

Mandatory ruck weigh-in will take place before the start and at the finish line.

  • Men: 30lb, Women: 20lb

  • Required ruck weight must be non-consumable and non-wearable. No food, water, or clothing used as required weight

  • You can carry extra supplies (food, water, layers, etc.) Just know this counts as additional weight on top of the required division weight

  • Required weight must be carried on your back as a traditional ruck. Any backpack/ruck is acceptable. Plate carriers are NOT allowed

  • During the event you make take your ruck off, but you may not make any forward proress without your ruck on your back.

  • No sling bags or duffel bags

  • No trekking poles allowed

If you have questions about your ruck set up, email katie@stay-relentless.com

REGISTRATION COMING SOON

Separate Run and Ruck, Male/Female Divisions

  • 5K/10K: Ranked by fastest finish time 

  • 6-Hour Endurance Challenge: Ranked by total distance completed (ONLY COMPLETE LAPS COUNT) Tie breaker: final fastest complete lap.

  • Top 3 Run (M/F) for 5k and 10k

  • Top 3 Ruck (M/F) for 5k and 10k

  • Top 3 6-Hour Run (M/F)  

  • Top 3 6-Hour Ruck (M/F)

  • “Relentless Award” for grit

Scoring & Results

Who is The Relentless Run & Ruck Challenge for?

The Relentless Run & Ruck Challenge is for runners who want a simple, timed event, ruck athletes who want a legit course and standards, lifters/CrossFitters/ HYROX/ hybrid/ functional fitness athletes who want a new challenge, walkers who want to be part of the fun, and anyone who wants to push themselves and have some fun.

Whether you’re chasing a time, carrying weight, or just here to test yourself - this challenge is for you.

All fitness levels are welcome - come push yourself and see what you’re capable of.

Frequently Asked Questions

  • Yes - there’s a big jump from the 10K to the 6-hour challenge. But the 6-hour event is about challenging yourself.

    You can: go for 2 hours, push for 3, see if you can make it to 4, or go for all 6 hours .


    The goal is to challenge yourself, and for some- to strive go further than you’ve gone before.

    You can move at your pace. Take breaks if you need to.  And keep going as long as you want/can.

    That’s the spirit of the challenge. 

    This event is also about being around people who enjoy the same things: getting outside, working hard, pushing their limits, and supporting each other.

  • The final schedule will be posted closer to the event, but here is the tentative schedule:

    6am: 6 Hour Start

    9:30am: Gravel Ride Start

    10am: 5k Start(half hour after gravel race)

    10:10am: 10k Start

    1-2pm: After Party, Off the Grid

  • Yes! Stay tuned for the announcement of our beneficiary which we are PUMPED to work with!

  • How many lunges can you do in ten minutes? On site $10 registration (all proceeds to beneficiary)- whoever does the most lunges in 10 minutes is the Lunge Champ.

  • Located at the Start/Finish, athletes will be able to setup their own personal area (bring your chairs, coolers, etc.)!

  • Of course! Fully stocked aid stations with water, electrolytes, and snacks to fuel your effort.

We’d love to have you participate in The Relentless Run & Ruck Challenge! Questions?
E-mail katie@stay-relentless.com