Seriously Fun, 5K Obstacle Run!


(Download, print & sign to pick up bib)


Click the link below to download. Print, sign & bring your waiver with you to the registration tent.




Event Info



SUN, April 28th, 2024

Hobb's Grove
14265 E. Goodfellow Ave.
Sanger, CA 93657

Gates open at 9:00 am. You'll want to show up ONE HOUR prior to the running time you signed up for to allow enough time for parking, bib pick-up, bag check, etc.  Event held rain or shine.

PRINT a copy of your order confirmation email (or save it on your phone) for faster check-in. Bring your Photo I.D. along with your signed waiver to the registration tent.  A Parent / Guardian will pick up MF Kidz bib(s).
Can't find your confirmation? CLICK HERE to enter the email address affiliated with your registration purchase and it will be resent to you.

- PARKING Parking is $20 cash per vehicle. You must park in our designated parking area only. No parking on streets, roads, or adjacent lots allowed. Absolutely no "walk-ins" from outside the designated event parking area will be permitted to participate in any Mud Factor event, no exceptions. There are accommodations for drop-offs inside the venue gates without charge.

- BAG CHECK You may drop off any items you don't want getting muddy or lost at our Bag Check tent for $5 cash. Attach the tear off tab on your running bib to your bag with a safety pin (provided at the bag check table). Watch where your bag is placed for easier retrieval  at pickup.

You may purchase or pick up your pre-ordered merchandise at the merchandise tent located in the festival area. You MUST pick up pre-ordered shirts on event day. We do not ship, refund, or credit pre-paid merchandise.

We recommend bringing extra clothes, shoes, and towels. Bring plastic bags for dirty items. We have plastic car seat covers for sale at $3 cash each.  Bring water to hydrate before and after your run.  Mud Factor provides water at the 1.6 and 3.2 mile mark to help quench your thirst.  Please take only one cup per pass and do not use the drinking water as a rinse station. Take your own water on the course if you think you need more hydration opportunities.

Mud Factor adult waves are a two lap system. You must cross the half way point within 45 minutes after the last wave of the day leaves the start chute (12:15 pm). Pace your first lap accordingly, as staff may start to remove course markings at any time after that deadline.  If you feel you need more time to complete the full 5k run, you should switch to an earlier running time.

- PHOTOSShow us your photos! Upload them to our Facebook events page. Use hashtags #MudFactor #SeriouslyFun #MudRun. Our Instagram is

We will have a wash off area with running water. Bring a towel and a change of clothes.  Lines and wait times can be long. We suggest bringing a gallon or two of water and leaving them on the roof of your car to warm in the sun, then rinsing at your vehicle upon exit. Please take ALL items with you, and do not leave a mess in the parking lot.


Spectators are $10 cash the day of the event at the venue. Spectators have access to the festival area only - no course access. Sight lines to the course and obstacles is limited and not guaranteed. Children 13 and under are admitted free (as spectators) into the festival area.

We will have local food vendors and a boba drink vendor in the festival area. Please support them. Bring Cash.

Late registration is available the day of the event at $75 for Adult Waves / $65 MF Kidz Family Waves.

- WAVE TIME CHANGE (Day of Event Only)
Please arrive one hour prior to the wave time you want to run in, and head to the Post Registration line at the registration tent. The fee is $15 cash to make this change.  

The new participant will want to show up at least an hour prior to the wave time they'd like to run in. Have them bring a copy of the ORIGINAL PARTICIPANT'S CONFIRMATION EMAIL to the Post Registration line at the registration tent. Tell them to bring their I.D. and $15 cash to make this change. Make sure they are aware of the link to this page as well. The original registrant does not need to be present to switch to a new runner.

- Change of Plans?  Switch to any other venue on our existing calendar, or defer your registration to a future Mud Factor event before Mud Factor Fresno 2024 registration closes.  Strict deadlines apply.  Get started HERE

It's time to get muddy, and we've got all the info
you'll need to get ready for the big day!

You MUST Download, Print & Sign a physical waiver and bring it with you to enter the venue