The 10K and 5K race begin and end at the Powerhouse Visitor Center on Route 66.  The 5K route proceeds up El Trovatore Hill with the turnaroud point at the crest of the hill.  The 10K route continues onto Hualapai Mountain Road, turning around just past the Copper Ridge apartments. The event also includes a 1K race on Route 66 for juniors (age twelve and under) and a 5K walk for anyone of any age. 

Proceeds benefit KRMC's Joan and Diana Hospice Home

Event details and schedule

7:15 am 1-K Junior Run

7:30 am 10K Run, 5K Run, 5KwWalk

Park at the Powerhouse Visitor Center

THIS EVENT IS SOLD OUT!

THANK YOU FOR YOUR SUPPORT!

Join StartLine Racing as we continue a March tradition in the valley!

The 10th Annual Shamrock 10K / 5K event will be taking place on

 Muddy Dash is not your average mud run! Get ready for up to 3 Miles of messy mayhem. You and your friends/family can expect to run, walk, crawl, wade, slip, slide, and scream with excitement as Muddy Dash gets you fabulously filthy. We’re consistently striving for innovation and excitement in our obstacles, so there’s always a chance you’ll see something brand new! From the moment you step off of that start line, until you triumphantly cross the finish, we hope you’re prepared to have the time of your life among so many of your new best friends in the Muddy Dash community.

Event details and schedule

Every finisher will receive a custom medal!

The Race will be held on Saturday, September 26th, 2026 at Skyline Aquatic Center, located at 845 S Crismon Rd. Mesa, AZ 85208 on Crismon and Southern. The triathlon will consist of a 400 meter swim, 12 mile bike ride a 5km run. It is intended to be a safe and fun event for seasoned and first-time triathletes alike.

You also have the option to register for the Duathlon, Relay, or Kids Splash n Dash to include the kids.

Packet Pickup Info

NO RACE DAY PACKET PICKUP - If you or a friend/family are unable to pickup on the dates/times listed

 Muddy Dash is not your average mud run! Get ready for up to 3 Miles of messy mayhem. You and your friends/family can expect to run, walk, crawl, wade, slip, slide, and scream with excitement as Muddy Dash gets you fabulously filthy. We’re consistently striving for innovation and excitement in our obstacles, so there’s always a chance you’ll see something brand new! From the moment you step off of that start line, until you triumphantly cross the finish, we hope you’re prepared to have the time of your life among so many of your new best friends in the Muddy Dash community.

Event details and schedule