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This event has SOLD OUT!


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

The 3rd Annual Shamrock Half Marathon / 10K / 5K

event will be taking place on March 17th at 

Tempe Town Lake - North Linear Park. 

NEW AND IMPROVED ROUTE! 




This event is limited to 900 participants.

Registration fees

Virtual Run Closed

  1. $35.00
    Sep 20 - Mar 6

Half Marathon Closed

    1. $65.00
      Sep 20 – Dec 31
    2. $75.00
      Jan 1 – Jan 31
    3. $80.00
      Feb 1 – Feb 18
    4. Closed
      Feb 18 – Mar 6

10K Run/Walk Closed

    1. $35.00
      Sep 20 – Dec 31
    2. $40.00
      Jan 1 – Jan 31
    3. $45.00
      Feb 1 – Feb 18
    4. Closed
      Feb 18 – Mar 6

5K Run/Walk Closed

    1. $30.00
      Sep 20 – Dec 31
    2. $35.00
      Jan 1 – Jan 31
    3. $40.00
      Feb 1 – Feb 18
    4. Closed
      Feb 18 – Mar 6

Thank you to our Sponsors!

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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 17, 2019.

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

All Participants Receive:

  • Custom Event 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)

  • Owned and operated by StartLine Racing!

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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

  • Bag check will be provided for this event

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

  • This event is limited to 900 participants. 

  • Race Day Registration will be available beginning at 7:00am at North Linear Park.  THERE WILL BE NO RACE DAY REGISTRATION

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

  • Race day registration fees will be:  EVENT HAS SOLD OUT

    • Half Marathon - $90  
    • 10K - $50 
    • 5K - $45
  • There will be plenty of parking available near the park.  There is a lot directly underneath the 202 freeway as well as a parking garage just north of the Marquee Theater.  Please refer to the map below.
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Course Maps

Half Marathon
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10K

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5K

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Course Information

  • 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 North Linear Park in Tempe - 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.

Water and Gatorade will be located at:

  • Half Marathon: Miles 1.35, 2.74 (western turnaround), 4.15, 5.4, 6.96 (eastern turnaround), 8.52, 10, 10.75, 11.55, and 12.35.  
  • 10K: Miles 1.55, 3.1 (turnaround), and 4.65
  • 5K: Miles .75, 1.55 (turnaround), and 2.3 

GU Gels will be available at miles 5.4 and 8.52 for the half marathon participants

Restrooms will be located on the course at miles 1.45, 4.05, 6, 7.92 and 10 for the half marathon.  Miles 2.17 and 4.05 for the 10K.

Packet Pick-up Opportunities

  • Saturday, March 16 2019 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 17, 2019 at North Linear Park (race location) beginning at 7:00am.

Event Schedule

  • March 16 2:00 PM - Packet Pickup at Road Runner Sports Tempe from 2-5pm

  • March 17 7:00 AM - Race Day Packet Pick-up Opens

  • March 17 8:00 AM - Half Marathon Run Begins

  • March 17 8:15 AM - 10K Run/Walk Begins

  • March 17 8:30 AM - 5K Run/Walk Begins

  • March 17 9:30 AM - Award Ceremony Begins (approx)

Contact Information

Event Location

620 N Mill Ave, Tempe, AZ, USA

Click here to view map