SISU 24 Ultra PNW

Saturday June 24th, 2023

Choose Your Own Adventure Run


SISU ENDURANCE presents one of the most unique events on the planet. You have 24-Hour to explore and run any distance you like, with the opportunity to achieve one of the toughest 100-Mile races anywhere! We start at a private Boy Scout Camp (Camp Sheppard) located in the spectacular Cascade Mountains, just minutes from Mount Rainier National Park and Crystal Mountain ski area. Cliffs tower overhead, pristine falls can be found nearby, and giant elk freely roam the meadows.

You are encouraged to come Friday and set up your base camp. Bring the entire family, crew, or friends – all extra support team are free and encouraged! Kids love camping for the weekend at the Boy Scout Camp!

Saturday morning the race starts.

Everyone races together, the 100-Mile runners will start at midnight and the 24-Hour Individual and 24-Hour Team runners will join them at 8am the next day. The race ends Sunday, 24-Hours after it begins for the team and individual runners. For the 100-Mile runners, there is a 32-Hour cutoff. 

This race is self-supported. You will set up your own base camp. We encourage everyone to be festive and creative with your camp site. There are multiple out and back trails that leave from base camp. The longest distance is 18.5 miles, and the shortest is approximately 3 miles. Before you head out on course you are required to check in at timing table at basecamp. You will choose which trail you want to take, from there you'll head out to the checkpoint at the end of the trail, there, you will find a stamp for your quest log. If you're in the top ten you'll also grab a ping pong ball, if you're in the 11-20 position you'll take a crystal, and if you're anything after you'll just grab your stamp and head back to HQ. It's imperative that you always check in with the staff at HQ when you first arrive back at camp for your safety and our knowledge of where you are (at camp vs. on course).

The way it work: Each route has a set point value based on distance and elevation. You'll earn more points for being among the first to complete a trail. It's a tiered system, that's where the ping pong balls and crystals come into play. Your points are earned by your route choices and any extra challenges you complete. 

In addition to earning the tiered points based on trail completion and the points you can earn from the bonus challenge that you can complete once per route, there are also additional points earned for those who complete a 3 ore more unique trail routes, completing all earning the highest of bonus points.

While it may seem like it based on the distances, you are never too far from base camp and your gear/fuel/food. There are plenty of water sources on the trails to collect water that you can purify and drink, make sure you have an efficient method for purifying your water, especially if we have a hot weekend.

There will be a food truck at camp as well as an espresso cart! The mood is festive with lights, movies, crafts, and onesies.


Choose Your Race Style

24-Hour Solo – You choose your own adventure and run as many miles as you like, choosing whether you want to complete bonus challenges or not. To be competitive it will be all about earning the most points.

24-Hour Team – Teams of three. Your team chooses their own adventure. You may run the same routes together or you may divide and conquer, the choice, is always yours. Your team points will be totaled between all three athletes.

100-Mile – 32-hour cutoff. Starts earlier than everyone else. Must run each route once before repeating. Bonus objectives not required.

Note: This is a very tough 100 with approx. 25,000 feet of elevation gain if not more depending on how you choose your route.

Course Map


Previous Maps


Trails and Camp

We are trail runners and love this community. SISU is very proud to offer this race at an extremely cost effective price point. Included in your registration is 3 days (2 nights) of camping! You set up your camp as you like, and there are restrooms with showers centrally located. You are highly encouraged to bring the entire family and friends. If you would like a pacer they are allowed at all times, completely up to you. They just cannot assist with your race other than moral support. We want you to be able to race and share with those important to you and a great weekend! All family/friends/crew are at no additional cost to you!

This event will take place at beautiful Camp Sheppard and the nearby trails. There are BBQ stands, flushing toilets, showers, and working sinks. We recommend you bring ready-to-eat meals and snacks.

There will be food trucks at the event as well and you are not far from the city if someone would like to drive down and get supplies!

6 Trails – each assigned points based off difficulty and distance.

Bonus Challenges – Earn points for various challenges such as midnight yoga, memorization, and other fun tasks!

Past Bonus Challenges have included: connect-the-dots, carry an egg and not break it, sudoku, trivia, knot tying, and we are always changing it up!



Custom Wood Round Medal – All participants receive.
You may engrave it with your name. Must sign up EARLY!

Top 3 Male
Top 3 Female
Top 3 Teams 
Custom Buckle – 100 Mile Finisher
SISU Spirit Award – Best Camp Site
SISU Miles – Most Miles Earned in the 24-Hour Period


We are working on revamping our swag this year. Stay tuned!

Gear List

Required Gear:
Hydration Pack or bottles
Food for 24 Hours
Index Card
Ink Pad

Recommended Gear:
Sleeping Bag
Bug Spray
Toilet Paper
Heavy Jacket
Cookware (no open flames however propane stoves are allowed)
GPS or phone
Bear Deterrent

Refund Policy

Know what you’re in for – read the rules and racer information thoroughly. We realize things happen between now and race day, and in light of that fact, we will be allowing a 70% refund to registrants within 45 days of submitting your registration. Post 45 days from your registration up to race day, registrants may elect to pay a fee of $35 for soloists and $90 for teams to transfer their entry to next year. Teams are allowed to switch out their members for a fee of $10. However, we do not allow substitutions or transfers of solo registrations. Failure to toe the starting line is a DNS. No exceptions and absolutely no whining. Please take the time to read the registration instructions and get it right.

*If the event is postponed due to event venue or other circumstance out of the race's control all registrations will be forwarded to the following year. If that date does not work, they will be forwarded to the year after that. If neither of those options work for you, you may gift your entry to any athlete of your choice. Simply contact the RD - Daren at There will be no refunds in this case as the event is not cancelled and things happen outside of the event's control*