MuckFest MS San Francisco 5K Mud Obstacle Run

2016 event details and registration coming soon!

Saturday, October 10, 2015

Solano County Fairgrounds
900 Fairgrounds Dr.
Vallejo, CA 94589 (MAP)

Parking Info
$10 - cars with 1 or 2 occupants
$5 - cars with 3+ occupants


Want to run? Show up Saturday morning no later than 8:00 a.m. to reserve your spot.

Full Price

October 10


*Registration fee does not include a processing fee. This processing fee, which includes handling and insurance, will be added to your total charge at the completion of registration. Processing fee is subject to change.

Want to volunteer? Contact us or come to the event site and check-in at the volunteer tent. Arrival time for volunteers is 7:00 a.m..

Want to watch? Click here for spectator info.

The first wave/start time is at 9:00 a.m., and then every half-hour throughout the day.

Looking for 2014 event photos? Click here.

What do I get?

Aside from the stuff you see below, you'll take away something priceless: a real sense of accomplishment, gut-busting laughs and muck-tacular memories with friends and teammates that will last a lifetime.

Race Bib & MuckFest MS T-Shirt
A Free Beer & Lil' Muckers Admission
Free Event Photos

Why We Muck It

The “MS” part of MuckFest® MS stands for multiple sclerosis, a chronic and often disabling disease that attacks the central nervous system. MS is unpredictable and affects every individual differently. Women are two to three times more likely to get MS, and it affects over two million people worldwide. This is the reason we come together—to rally friends in support of people living with MS in our community. That's why 100% of funds raised by you benefit the National Multiple Sclerosis Society. Join MuckFest MS and have a blast while being a part of something that matters.



National Sponsor

Local Sponsors

Shoe Recycling


  • “Thank you all for an awesome day! This was our first time, and everyone was so inviting and kind! And as a person living with MS, it was awfully nice to get a pat on the back and a 'you're doing great' as we went along! We'll definitely be seeing you again next year!”

    Heather Kragthorpe Briese
    • Heather Kragthorpe Briese
    • Twin Cities Mucker
  • “One of the best things I have ever experienced!”

    Molly Beth
    • Molly Beth
    • Chicago Mucker
  • “The best mud run I have ever done.”

    Beckie Warloe
    • Beckie Warloe
    • Detroit Mucker
  • “This is an absolute must if you haven't done it already, a fantastic time from start to finish.”

    Charlie Schill
    • Charlie Schill
    • Philadelphia Mucker
  • “I signed up for MuckFest MS determined to do it. It was a great experience! We'll be back next year!”

    Carolyn Hachmeyer
    • Carolyn Hachmeyer
    • New Jersey Mucker
  • “We had SO much fun, thank you for an amazing course and all that lovely mud.”

    Kari Gansch
    • Kari Gansch
    • Twin Cities Mucker
  • “We powered through the obstacles, swam through the muck and had an absolute blast! Having fun for an amazing cause has never hurt so good! Thanks for the memories MuckFest MS!”

    Team Mucky Doves
    • Team Mucky Doves
    • Chicago Muckers
  • “We had a blast! We will definitely be back next year with a lot more people on our team. Thanks for doing such a great job.”

    Sarah Hulwick
    • Sarah Hulwick
    • Detroit Mucker
  • “This year's MuckFest MS was so amazing! Thank you so much for all of the support!”

    Michael Pierce
    • Michael Pierce
    • Denver Mucker
  • “Awesome! I participated today as an MS Warrior, and I was truly touched by the awareness and amount of people supporting this great cause! Thank you for helping us get a little closer to a cure! #IMuckWithMS #MSWarrior”

    Tammy Duke
    • Tammy Duke
    • Chicago Mucker
  • “Thank you! We had so much fun! Can't wait for the next one! ”

    Amy Boudreau-Gencarelli
    • Amy Boudreau-Gencarelli
    • Detroit Mucker
  • “Diagnosed 1 year ago. Great to see everyone come together for such a great cause. The energy at this event was incredible, can’t wait to be back next year!”

    Kristin Frazier
    • Kristin Frazier
    • Boston Mucker
  • “Cheers to an awesome day for an awesome cause!”

    Lauren Weekley
    • Lauren Weekley
    • Detroit Mucker
  • “Great course again this year!! Thanks for the fun and memories!”

    Ellen Beitzinger
    • Ellen Beitzinger
    • Twin Cities Mucker
  • “Little muckers and big muckers agree: MuckFest MS is F-U-N FUN!”

    Robin Martin
    • Robin Martin
    • Denver Mucker
  • “What an amazing day! Best volunteer work I've ever done! Thank you to everyone who showed up and got dirty!”

    Debi King Adams
    • Debi King Adams
    • St. Louis Mucker
  • “So much fun! Met great people and got filthy for a good cause!”

    Allison Cole Neilan
    • Allison Cole Neilan
    • New Jersey Mucker
  • “Just want to say THANK YOU! We had a BLAST today and this year's course ROCKED!”


    • Lisa Mattingly
    • St. Louis Mucker
  • “It was an amazing experience! We had a great time!”

    Karen Paulsson Bieri
    • Karen Paulsson Bieri
    • New Jersey Mucker
  • “Thank you to everyone who made this happen again this year. We had a great time. MS didn't win today, we did!”

    Tanya Engelking Zukauskas
    • Tanya Engelking Zukauskas
    • Chicago Mucker
  • “What a blast! Can't wait until next year!”

    Dean Woehrle
    • Dean Woehrle
    • St. Louis Mucker
  • “What an EPIC time at the MuckFest MS. Thanks to everyone that came and supported such a great cause. Had a blast!”

    Johnny G. Essel
    • Johnny G. Essel
    • Philadelphia Mucker
  • “Thanks MuckFest MS, National MS Society, and all the volunteers! I was diagnosed in December, so this was my first one and it was amazing!”

    Andrea Wood
    • Andrea Wood
    • Philadelphia Mucker
  • “We all had a BLAST! Can't wait for next year! We will be back with a BIGGER Crew! Thanks Guys for a great event!”

    Robert Bobik Jr.
    • Robert Bobik Jr.
    • New Jersey Mucker
  • “A mucking good time at MuckFest MS this morning!”

    Sam Nastasia
    • Sam Nastasia
    • Boston Mucker
  • “Great time! MuckFest MS 2016 can't come quick enough!”

    Anne Merkle
    • Anne Merkle
    • St. Louis Mucker
  • “Had an amazing time Saturday running MuckFest MS! So much fun! Can't wait until next year!”

    Beth Timmons Coblentz
    • Beth Timmons Coblentz
    • Philadelphia Mucker
  • “Great run today! Thanks to you and all of the volunteers that make it happen!”

    N. Harrison Ripps
    • N. Harrison Ripps
    • Boston Mucker
  • “Had a blast yesterday at the Twin Cities event! Emcee Al was a hoot!”

    Jen Tabroxen
    • Jen Tabroxen
    • Twin Cities Mucker
  • “Westside Muddtha Muckers loved every minute of it. Can't wait till 2016!”

    John West
    • John West
    • Boston Mucker
  • “Had a fun time at MuckFest MS 2015”

    Lynsey McCurdy
    • Lynsey McCurdy
    • Denver Mucker