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

The 2nd Annual Shamrock Half Marathon / 10K / 5K / Little Leprechaun 

Sprint event will be taking place on March 18th at 

Tempe Town Lake - North Linear Park.  

The 5K ,10K and Half Marathon distances are SOLD OUT!

Limited quantities are available in the Little Leprechaun Sprint.

Registration fees

Little Leprechaun Sprint Closed

Registration closed
    1. $15.00
      Oct 10 – Jan 17
    2. $20.00
      Jan 18 – Mar 17

Mail-in and Virtual Registration

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

Virtual Run Details

Of course we want you to participate in the Shamrock Half Marathon, 10K, 5K event locally but we know things come up.  So, if you can't join us on race day and still want to run, get the medal and the shirt then you still can.  Here is your way to take part in this event no matter where you are.  And of course, all prices include shipping!  Please note that items will not be mailed out until after the event on March 18, 2018.

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

All Participants Receive:

  • 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 distances (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)

  • 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!


Race Day Information

  • We welcome wheelchairs, strollers & wagons. 

  • No roller blades, skateboards or motorized devices are allowed on the run or walk courses.

  • Leashed pet friendly

  • Little Leprechaun Sprint is an untimed half mile run

  • Bag check will be provided for this event

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

  • Race Day Registration will be available beginning at 7:00am at North Linear Park.

    • We accept cash, check, and credit cards on race day 

  • Race day registration fees will be:

    • Half Marathon - $80  SOLD OUT!
    • 10K - $50  SOLD OUT!
    • 5K - $40  SOLD OUT!
    • Kids Dash - $20

Course Maps

Half Marathon




Packet Pick-up Opportunities

  • Saturday, March 17 2017 from 2:00 - 5:00pm at Road Runner Sports in Tempe (map)

    • Road Runner Sports is located at 43 S McClintock Drive, Tempe, AZ 85281

  • Sunday, March 18 2017 at North Linear Park (race location) beginning at 7:00am.

Event Schedule

  • March 17 2:00 PM - Packet Pickup at Road Runner Sports Tempe from 2-5pm

  • March 18 7:00 AM - Race Day Packet Pick-up and Registration Opens

  • March 18 8:00 AM - Half Marathon Run Begins

  • March 18 8:10 AM - Little Leprechaun Sprint Begins

  • March 18 8:45 AM - 10K Run/Walk Begins

  • March 18 9:00 AM - 5K Run/Walk Begins

  • March 18 9:30 AM - Award Ceremony Begins (approx)

Contact Information

Event Location

620 N Mill Ave, Tempe

Click here to view map