MuckFest MS San Francisco 5K Mud Obstacle Run

Saturday, October 1, 2016

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

Register Now

Early Bird*

June 1



Full Price

October 1


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

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


*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. Limited quantities of Early Bird discount registrations available. The Early Bird discount expires on June 1, 2016, or when quantities run out, whichever occurs first.

Buying for a group of 4 or more?
Get group ticket packages here!

Not quite ready to muck it?
Click here to volunteer.

Are you mucking it with MS?
I MUCK IT WITH MS bandanas are now available to participants with MS. Learn more.

Looking for 2015 event recap and photos? Click here.

Don’t miss out.

Get a reminder before prices go up.

If you respond and have not already registered, you will receive periodic updates and communications from MuckFest MS and the National MS Society.

   Please leave this field empty

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.

Register Now for 2016

2015 Event Recap, Thank You and Photos

We Heart San Francisco!

After witnessing the event on Saturday, we called up Merriam-Webster, you know the dictionary people, and insisted they make an urgent addition:

mud-thusiast noun 1. a person filled with enthusiasm for mud or more generally getting dirty; or 2. a San Francisco mucker. <With apparent delight, the San Francisco mud-thusiast voluntarily rolled in the mud and laughed with gusto.>

Merriam-Webster wasn't too receptive, but we'll let you know what Urban Dictionary says.

The obligatory San Francisco fog in the morning only seemed to invigorate you muckers, who did not need any prompting to get down and dirty in the Muckin' Corral. And then before we knew it, the skies were blue and you soared to new heights of muck-tacularity. Flying Muckers indeed!

Even after you posed heroically (and comically) at the finish line, you carried on with plenty of post-run shenanigans at the MuckFestival, including several would-be lumberjacks who displayed a definite talent for log-rolling or at least getting wet.

As we say, it takes a mini-army to make the muck-magic happen, and you San Francisco volunteers were magicians of the highest order; thank you for creating such a safe, inviting and fun event for all. Thanks also to the Solano County Fairgrounds for being such a great host and partner.

As many of you said, we're ready to do it again next year! Speaking of which, save the date for the 2016 MuckFest MS San Francisco: Saturday, October 1. Registration and event details coming soon!

A special message from the Northern California Office of the National MS Society.

Thank you for coming out and making MuckFest MS San Franacisco such a great success. We would like to thank all the runners, volunteers and staff who came out to run, help and support each other this weekend. Every day of the year, we work hard to support people living with multiple sclerosis. There is still time to support the mission behind the “muck” and help us reach our fundraising goal. Make a donation online at or call us.

What's that you say?

On Facebook, Twitter, and Instagram here's what you're saying about MuckFest MS San Francisco:

“We had so much fun!” – Jenna R.C.

“This event was well laid out and the obstacles were great! We had a wonderful time and I will definitely do it again next year!” – Konni K.S

“Thank you for a great day!” – Lorrie J.B.

“We will definitely be back next year, in bigger numbers and with a bigger group donation! Thank you to the army of people it took to put it all together. You're amazing.” – Thomas I.

“Had an awesome time.” – Hilda B.

MuckFest MS MuckFest 
MS San Francisco
MS San Francisco
MuckFest MS San Francisco
MuckFest MS San Francisco


National Sponsor

Local Sponsors

Shoe Recycling


  • “Best mud run ever! The Mucking MSfits had a blast!”

    Sheli Bevill Godbold
    • Sheli Bevill Godbold
    • Houston Mucker
  • “Words can't explain how much fun I had.”

    Sheila Henry
    • Sheila Henry
    • San Francisco Mucker
  • “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
  • “Yesterday at MuckFest MS was a blast! Thank you to everyone who came out to get mucky with us, and thank you to everyone who donated!”

    Jen Gerber
    • Jen Gerber
    • Los Angeles 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
  • “We had the best time! The obstacles were so much better this year! Loved all the extras and the upgrade to the kids Muck area. It was an awesome day!”

    Tricia Garcia
    • Tricia Garcia
    • San Francisco 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
  • “Such an amazing day!”

    Claudine Stering
    • Claudine Stering
    • Los Angeles Mucker
  • “Such a fun event for a great cause!”

    Katherine Crowley
    • Katherine Crowley
    • Houston 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
  • “Very nicely done. This event was well laid out and the obstacles were great! We had a wonderful time and I will definitely do it again next year!”

    Konni Keane Stalica
    • Konni Keane Stalica
    • San Francisco 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
  • “Had an AMAZING time. Can't wait to do it again!”

    Travis Ludeke
    • Travis Ludeke
    • Houston Mucker
  • “Just want to say THANK YOU! We had a BLAST today and this year's course ROCKED!”


    • Lisa Mattingly
    • St. Louis Mucker
  • “We will definitely be back next year, in bigger numbers and with a bigger group donation!”

    Thomas Illick from Santa Cruz Fit Body Boot Camp
    • Thomas Illick from Santa Cruz Fit Body Boot Camp
    • San Francisco 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
  • “Awesome day getting dirty!”

    Bill Salas
    • Bill Salas
    • Los Angeles 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
  • “We had a blast! Laughed so much throughout; I waited a whole year for this past weekend but it was worth it.”

    Jose Oliveros
    • Jose Oliveros
    • Los Angeles 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
  • “Good times, good people, great cause! Will be back next year!”

    Jeff Walston
    • Jeff Walston
    • Houston Mucker