Join StartLine Racing as we start a new March tradition!

The Inaugural Marana-Tucson Shamrock Half Marathon, 10K,

5K, and Little Leprechaun Sprint will take place on

Saturday, March 17th at Crossroads at Silverbell District Park in Marana.



Virtual Run Details

Of course we want you to participate in the Marana-Tucson Shamrock Half Marathon, 10K and 5K event locally but we understand things come up.  So, if you can't join us on race day and still want to run, get the medal and shirt then you still can!  Here is your chance to take part in this event no matter where you are!  And of course, all prices include shipping!  Please note that all items will ship following the event on March 17th.

Virtual Registrations are restricted to US addresses only.  If you reside outside of the US and wish to participate please contact StartLine Racing at

Registration Fees

Half Marathon



Little Leprechaun Sprint

Virtual Run

Mail-in Registration Form

To register by mail please complete and return our Mail-in Registration Form!  Please make checks payable to StartLine Racing.

What You Get!

- Custom Event 4" Glitter Medal for ALL participants.

- Choice of Custom Event Dri-Fit Racerback Tank or Tech Shirt for all participants.

- Age Group Awards for Top Three in all Age Groups for the half marathon, 10K and 5K (Race day participants only).  Our age groups are the following:

  • 8 & Under, 9 & 10, 11-13, 14-17, 18-24, 25-29, 30-34, 35-39, 40-44, 45-49, 50-54, 55-59, 60-64, 65-69, 70-74, 75 & Over

- Pre- and Post-Race "Runner's Brunch" (bagels, fruit, water, Gatorade, etc) 

- Chip Timed with Real Time Results and Photos on our Website or Mobile App (on Apple and Google

- Course set/marked by StartLine Racing to maximize your experience! 


Course Maps

Half Marathon



Race Day Information

  • Race Day Registration will be available beginning at 6:30am.

  • We accept cash, check, and credit cards (Visa or Master Card) on race day

    • Race Day prices:
      • Half Marathon - $80
      • 10K - $50
      • 5K - $40
      • Little Leprechaun Sprint - $20
  • Strollers welcome

  • Leashed pets welcome

  • Little Leprechaun Sprint will be an untimed half mile run and is open to all ages.  

  • There is a 4 hour time limit on the half marathon course.

  • The course will take you through dedicated running trails (all asphalt and concrete), starting and ending at Silverbell Park in Marana - meaning no need for transportation before or after the race just to get back to your car!  Please note - this is an open use trail system and does not close for our event.

  • Due to the common start/finish line, there is no bag check for this event.

Packet Pick-Up Opportunities

  • Packet Pick-up is available on Friday, March 16th from 4:00 - 7:00pm at Fleet Feet Sports in Oro Valley (map). 

    • Fleet Feet is located at 7607 N Oracle Road in the Oracle Crossings Shopping Center.

  • Race Day Packet Pick-Up will be available beginning at 6:30am.

Check out our other Tucson events!


Event Schedule

  • March 16 4:00 PM - Packet Pick-Up from 4-7pm at Fleet Feet Sports in Oro Valley

  • March 17 6:30 AM - Race Day Packet Pick-up and Registration Opens

  • March 17 7:30 AM - Half Marathon Begins

  • March 17 7:45 AM - 10K Begins

  • March 17 8:00 AM - Little Leprechaun Sprint Begins

  • March 17 8:15 AM - 5K Begins

  • March 17 9:00 AM - Award Ceremony Begins (approx)

Contact Information

Event Location

Crossroads at Silverbell District Park, North Silverbell Road, Tucson, AZ, United States

Click here to view map