Join StartLine Racing as we continue a March tradition!
The Tucson Shamrock Half Marathon, 10K, 5K
will take place on Saturday, March 12th at
Crossroads at Silverbell District Park in Marana.
This event is limited to 500 participants.
Registration fees
Half Marathon Closed
Online registration closed-
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$65.00Oct 1 – Nov 1
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$75.00Nov 1 – Dec 31
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$80.00Jan 1 – Mar 12
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10K Closed
Online registration closed-
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$35.00Oct 1 – Nov 1
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$45.00Nov 1 – Dec 31
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$50.00Jan 1 – Mar 12
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5K Closed
Online registration closed-
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$25.00Oct 1 – Nov 1
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$35.00Nov 1 – Dec 31
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$40.00Jan 1 – Mar 12
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Virtual Run Closed
Online registration closed-
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$30.00Oct 1 – Oct 31
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$35.00Nov 1 – Mar 12
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NEW for 2022 - Chase the Leprechaun!
The 5K distance will feature a 'Chase the Leprechaun' for 2022! A leprechaun will be set loose on the course for all of our participants to find. Any participant to pass the leprechaun and finish the race will receive a prize at the finish line. No additional registration required. Open to all 5K participants.
Mail-in Registration Form
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 and 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! Prior to the event all virtual participants will receive an email with instructions on how to submit your time. Please note that all items will be shipped following the event on March 12th.
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
What You Get!
Custom Event Medal.
Choice of Custom Event Tech Shirt for all participants. Option to choose 'No Shirt' and get $5 off your registration
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" (granola bars, fruit, water, Gatorade, etc)
Chip Timed with 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
Race Day Registration will be available beginning at 6:30am.
We accept cash, check, and credit cards on race day
Race Day prices:
- Half Marathon - $85
- 10K - $55
- 5K - $45
Strollers welcome
Leashed pets welcome
Due to the common start/finish line, there is no bag check for this event.
This event will take place rain or shine. There are no refunds for due to weather.
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 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.
Water will be located at:
- Half Marathon: Miles 1.13 (southern turnaround), 2.2, 3.75, 5.4, 6.55, 7.6 (northern turnaround), 8.65, 9.8, and 11.55.
- 10K: Miles 1.55, 3.1 (turnaround), and 4.65
- 5K: Miles 1.55 (turnaround)
GU Gels will be available at miles 6.55 and 8.65 for the half marathon participants
Restrooms will be located on the course at:
- Half Marathon: Miles 4.4 and 10.8
- 10K: Miles 2.3 and 4.2
Course Maps
Packet Pick-Up Opportunities
Packet Pick-up is available on Friday, March 11th from 3:00 - 6:00pm at Fleet Feet Oro Valley (map)
- Fleet Feet is located at 7607 N Oracle Road in the Oracle Crossings Shopping Center.
You can also pickup your packet on race day starting at 6:30am.
Event schedule
- Fri, March 11, 2022 3:00 PM - Packet Pick-Up from 3-6pm at Fleet Feet Sports
- Sat, March 12, 2022 6:30 AM - Race Day Registration and Packet Pickup Opens
- Sat, March 12, 2022 7:30 AM - Half Marathon Begins
- Sat, March 12, 2022 7:45 AM - 10K Begins
- Sat, March 12, 2022 8:00 AM - 5K Begins
- Sat, March 12, 2022 9:00 AM - Award Ceremony Begins (approx.)
Contact information
- Event contact
- StartLine Racing
- info@startlineracing.com
- Phone
- +1 480-912-7878
- Website
- Visit website