November 22-23, 2025

Dinosaur Valley Endurance Run

Race Information

Sections On This Page:

Packet Pickup , Saturday vs Sunday Race Starts, Facebook Group for 100K and 100 Mile, Administration Areas at the Start/Finish. Drop Bags, Pacers, Cutoffs, Medical

Supporting Pages with More Details:

Aid Stations; Crewing at Dino Valley; Course Information; Timing and Results; Leave No Trace Principles; Volunteer Now!

All are welcome, but we actively invite and support the following groups to join our events:

(Click each one to learn more)

Back-of-the-Pack Athletes / Walkers / Hikers

Athletes with Disabilities or Impairments

Aging Athletes

Packet Pickup

Packet Pickup will be at the race site but set apart from the start line. All packets will be pre-stuffed and sorted in bib number order. Bring your bib number to make it go quickly - they'll be published on the website race week.

What am I picking up in my packet? The following things:

Your bib (write medical concerns we should know about on the back as well as emergency contact numbers). Your chip is attached to your bib. Don’t detach and don’t bend your chip. You may fold your bib as long as the chip doesn’t get folded and as long as we can read your number.
Safety pins – they are pinned to your bib.
Your entrant shirt (We are sold out so race swaps can only happen after your race from packets not picked up.)
(NO Parking pass for the State Park this year as they have a participant list at the main entrance to check if you choose to go over to the main entrance of the park, which is NOT where the race is).

How and where you place your race bib is very important to have you properly timed at every race split:

The event will be chip timed. The "chip" is actually a tag attached to the back of the race bib.

Please attach your bib to your shorts or leggings on the FRONT of your body, horizontally so that we can read the number, and so that it is visible to anyone observing and is not covered by any other clothes layers or any race belts. Do NOT attach it to shirts, jackets, race belts (it can bunch up), or hydration packs.
Do NOT alter your bib. They can’t be folded or crumpled, and do not take the foam cover off your bib chip.
If you do not have a chip on the back of your bib, find the race timer by the start/finish early race day morning to get a new bib.

No distance changes are allowed at this point because the race is sold out in every distance. Remember that 100 milers can get a recorded 100K finish when they complete the 100K distance, so no need to change from 100 miler to 100K.

Please plan to arrive early so you have time to get your packet, run to the bathroom, and gear up for your race start, with enough extra time that you will NOT miss the trail briefing before we start.

Once your race distance starts, you have forfeited all rights to your packet, including your race shirt.

Wearing your bib is the only check-in needed. It will record your start when you cross the timing mat at the start line.

Bibs are color coded to help volunteers and race personnel easily see what distance people are running. It goes from Red at the longest distance down to Blue for the shortest distance.

Race Start Options : Saturday vs Sunday

100 mile and 100K must start Saturday at 7 am.

For SATURDAY Participants (50K, 25K, 5 Mile):
If you're signed up for Saturday, you don’t need to worry about time cutoffs, whether you’re hiking the 5 Mile, pacing through the 25K, or going the distance in the 50K. Saturday offers plenty of time for all distances.

For SUNDAY Participants (50K, 25K, 5 Mile):

5 Mile: You’ll have lots of time to hike and enjoy the course—no pressure.
25K: The pace requirements are very hiker-friendly. Check the chart in the Cutoffs Section for your final loop cutoff.
50K: Cutoffs are tighter on Sunday due to the overall race weekend closing. If you're unsure about making the cutoff times, we suggest signing up for a shorter distance.

Currently, only SUNDAY entries are available for all three distances.

Facebook Group for 100K and 100 Mile

If you are registered for the 100K or 100 Miler, please feel free to join our Facebook Group "2025 Dino Valley 100M and 100K Entrants (plus past finishers)". This is a group for current 100 Mile and 100K entrants into the race, as well as past finishers at the State Park of these long distances! A supportive and educational group to help us get as many of you to the finish as possible (but some race days just don't work out regardless of preparation and that's okay too). We currently have a few hundred members!

Administration Areas at the Start/Finish

Foot Care: This year our foot care center is led by Danna Baxley & Gregg Lawson, who have been trained by “Fixing Your Feet” Co-Author Tonya Olson. If you have any foot issues please stop in and see them. In the history of running a hotspot or blister has NEVER gotten better by doing nothing. The team’s goal: “Our goal is that nobody DNFs due to foot drama!”

Quiet Tent: Set further away from the main hubbub of the start/finish/aid station is the Quiet Tent. It will have a table and several camp chairs. This tent is designed to be able to be used for multiple purposes:

Quiet time from overstimulation (helpful for those who are neurodivergent or on the autism spectrum)
Meditation (recenter yourself to continue your journey to the finish line)
Prayer (we recognize some religions include prayer throughout the weekend so this is a quiet space to do that)
Breastfeeding (whether this is pumping or feeding a child directly)

Please respect all users’ utilization of this space. Please keep this a quiet space.

Headquarters: Packet pickup, timing issues, awards. We’re here to help!

Drop Bags

For the Start/Finish/Cedar Brake Aid Station:

You may set up in one of the Crew Areas of Valley Village.

At the Fence Line Aid Station:

Only 100K and 100 milers may put a drop bag here.
Leave the bag in the designated area at the start line on Saturday morning.
Bags should be labeled with your name and bib number.
The drop bags will be collected and transported after the race start and will not be available until mile 8.
Once they are at Fence Line, they will be spread out on tarps and sorted by bib number.
Drop bags may not be bigger than 2 ft by 2 ft by 1 ft. No coolers. Secure any liquids or fragile items for transport. It will be uncovered and exposed to the elements, so plan accordingly.
On your last loop, ask the Aid Station where the designated area is to put your drop bag to be returned.
If you drop out of the race, it may be several hours before your bag is returned on a future delivery to the finish line.

Pacers

Who can have a pacer, and when?

Participants ages 60+ in the 100K or 100 miler and participants ages 70+ in the 50K, 25K, or 5 Mile may have a pacer from the start of the race to the finish with permission ahead of time by the Race Director. Email us to get approved.
Participants under age 60 in the 100K or 100 miler can have a pacer starting mile 52.5 (after 5 loops).
Participants under age 70 in the 50K, 25K, or 5 Mile may not have a pacer.

Additional Details for Pacers:

Pacers must first fill out THIS WAIVER online. Then, all pacers must check-in at the headquarters by the finish line before pacing to get a pacer bib.
Participants can pick up or change pacers only at the Cedar Brake aid station.
Participants can only be paced by one person at a time.
Pacers must stay with their runners except in case of emergency when seeking assistance.
No muling allowed. This means that a pacer may not carry or deliver anything to their runner unless within 100 yards of an aid station. This includes food and water.
Pacers may eat and drink from each aid station just like the participants, but not until shortly before they start pacing.
Failure by any pacer to follow the rules set out here may result in disqualification of their runner.

Cutoffs

For SUNDAY Participants (50K, 25K, 5 Mile):

5 Mile: You’ll have lots of time to hike and enjoy the course—no pressure.
25K: The pace requirements are very hiker-friendly. Check the chart below for your final loop cutoff.
50K: Cutoffs are tighter on Sunday due to the overall race weekend closing. If you're unsure about making the cutoff times, we suggest signing up for a shorter distance.

100K and 100 Milers: See the chart below for last loop cutoffs (last loop for 100K is the 10.5-mile loop and for the 100 mile is the 5-mile loop) and make sure your crews know these cutoffs too.

There will be no FINAL cutoff time (within reasonable limits - read on). There are incremental cutoffs ONLY. You must make each of these cutoffs in order to continue in the race.

These cutoffs represent the time you must be OUT of the aid station by. If a participant chooses to leave an aid station and return to the race course after the time cutoff or after being told by aid station volunteers that they are being pulled from the race, the participant is instantly disqualified and may be banned from future races.

If you leave an aid station before the cutoff but then backtrack and return to that same aid station after the cutoff, you will be pulled from the race.

The finish line will be stripped to bare bones at 2:00 pm but if you can make the final cutoff, we will wait for you at the finish, however long you take to make the final 2.5 mile journey, within reasonable limits (up to 3 hours for that final stretch).

Medical

Each runner is responsible for their own actions. You need to be prepared both physically and mentally for all of the various stresses of the race. Our hope is to not have to call 911 for any of you. But in the event we have to in a medical emergency, medical expenses incurred are the responsibility of the participants receiving medical attention. Some parts of this trail are very remote to road access, and there may be a substantial amount of time that passes before medical personnel can arrive to provide aid.

Runners must understand all risks associated with undertaking this event. These physical and mental stresses include, but are not limited to, dehydration, hyponatremia, hypothermia, heat exhaustion, renal failure, seizures, hypoglycemia, disorientation, falls resulting in physical injury, complete physical and mental exhaustion, etc. Every participant is expected to monitor his or herself continually with an understanding of their own personal limitations. YOU, the individual participant, are absolutely responsible for your well being during and after the race.