Big Brothers Big Sisters of Flagstaff Dave McKay Memorial Half Marathon and 5K Run/Walk (Virtual or Regular)

In person August 14th; Virtual August 14th to August 25th, 2021 Flagstaff, AZ 86001 US RaceJoy Ready
Actual Course - Thorpe Park Flagstaff
OR Your Anywhere Course!
Flagstaff, AZ US 86001

Join the 2nd oldest half marathon in Arizona sponsored by Kinney Construction Services! This year we are planning to hosting our 44th annual race in person on August 14th. We will also offer a virtual race that you can run anywhere or on course! ONLINE REGISTRATION CLOSES AUGUST 12th, however, you can register the night before the race at Thorpe Park. PLEASE NOT WE WILL NOT HAVE RACE DAY REGISTRATION, only pre-registered race bib and shirt pick up!!!!! For those who wish to run virtually between August 14th and August 25th, we will be offering the free RaceJoy App that will allow you to follow the beautiful course that starts at Thorpe Park (do note no longer Wheeler Park!) and climbs the steep urban trail onto Observatory Mesa (where astronomers discovered Pluto) and follows dirt roads on with spectacular views of the San Francisco Peaks. Elevations range between 6957 ft at the start, to 7731 ft near the 7.5 mile mark! Most of the climbing is done over the first 1.25 miles, so pace yourself. If you are from lower elevations, heed the race director's advice and power walk!!!! You will easily make up the time over the rest of the course!  The 5K is also on Observatory Mesa. ALL proceeds benefit BBBSF Mentoring Programs that create and support one-to-one mentoring relationships that ignite the power and promise of youth.

Course Maps on Strava: Half Marathon; 5K

AID STATIONS: Mile 1 (before 5K/Half Marathon split), Mile 2 (gate at top of urban trail), Mile 4.5 (Junction of Pipeline and Forest Road), Mile 6 (used to be halfway), Mile 8 (Haag's Hideway), Mile 10.1 (Same as 4.5 on return), Mile 11 (same as Mile 2 on return), Mile 12 (Same as mile 1 on return).

August 12th: Early Packet Pick up at Run Flagstaff, 2:30 PM to 5:30 PM, 204 West Historic Route 66, Flagstaff

August 13th FRATELLI'S PIZZA PARTY PACKET PICK UP: All registered runners get a free pizza party from 5:30 to 7:30 PM at Thorpe Park Picnic Ramada where you can pick up your Bib and shirt. Friends and families can make a $10 donation to join the party.  This is also the last opportunity to register as there will be no race day registration (you can pick up your Bib and shirt on race day beginning at 6 AM at Thorpe Park). 

RACE DAY PARKING AROUND THORPE PARK PICNIC RAMADA: PLEASE DO NOT PARK AT THORPE PARK; We must leave this open for those that use the Adult Center and the tennis courts. You can park along any of the residential streets, Aspen, Birch, or Cherry Street that lead to the park. 

August 14th Race Day STARTING TIMES: Early Half Marathon for non-competitive walkers/runners (you are timed but do not compete in age division standings) start at 6 AM, Regular Half Marathon 7:30 AM, 5K at 7:45  AM, and Kid's Dash (1KM) goes off right after 5K. 

August 14th Estimated start of Medal Awards and Photos: 5K Fun Run  8:30 AM, Only top 3 overall Male and Female. 10:15 AM Half Marathon, Age Division Awards. Top Overall Open M and F (Under 40) and Masters M and F (40 and over) are pulled from age division awards.  

All participants in the Half Marathon/Half Marathon Walk/5K Fun Run/ or Virtual Half Marathon/Virtual 5K will get a Sweatvac hi-tech dye sublimated T-shirt. This year, Only Kid's Dash participants will get a finisher's medal. 

Big Brothers Big Sisters of Flagstaff Half Marathon is also part of the Flagstaff Running Series value package of five of Flagstaff's most iconic foot races. 

The in-person half marathon is also part of the 2021 Series Runner Arizona Half Series where you can run Arizona's most popular half marathons and win medals for doing so!

So join us in person on August 14th or Walk/Run either race course ANYTIME between August 14th and August 25nd or pick your own course and the upload and share your time!




Don't miss this video of past races - it says it all!!!


Big Brothers Big Sisters of Flagstaff is not your typical organization. We help children realize their potential and build their futures. We nurture children and strengthen communities. 

Since 1967, Big Brothers Big Sisters of Flagstaff has operated under the belief that inherent in every child is the ability to succeed and thrive in life. Big Brothers Big Sisters of Flagstaff makes meaningful, monitored matches between adult volunteers (Bigs) and children (Littles), ages 6 through 18, in Flagstaff and Williams. We continue to develop positive relationships that have a direct and lasting effect on the lives of thousands of young people.  

Our Vision:

Our vision is that all youth achieve their full potential. 

​Our Mission:

Our mission is to create and support one-to-one mentoring relationships that ignite the power and promise of youth.

Accountability Statement:

We partner with parents/guardians, volunteers and others in the community and hold ourselves accountable for each child in our program achieving:Higher aspirations, greater confidence, better relationships, avoidance of risky behaviors, and educational success. 


Big Brothers Big Sisters of Flagstaff greatly relies on the generosity of individuals to support the organization’s annual operating budget. Gifts from caring people like you make it possible for our staff to recruit volunteer Big Brothers and Big Sisters and provide them with one-to-one expert advice and support. Big Brothers Big Sisters of Flagstaff also offers a wide variety of activities—social, educational, entertainment, vocational and more—for our “Bigs” and “Littles.” It costs our agency $1,500 to make and support a match for one year. 

Big Brothers Big Sisters of Flagstaff is Arizona Qualified Charitable Organization and a proud member of the Flagstaff Tax Credit Coalition. The Arizona Charitable Tax Credit is a dollar-for-dollar tax credit allowing you to donate to qualified Arizona organizations, and claim a dollar-for-dollar state tax credit of up to $800 if married filing jointly, or $400 if filing individually! This credit can be made in addition to any school or foster care organizations. Visit for more info

DONATIONS can be made without a race entry - click on the blue "DONATE" button in page header!  

Your BBBSF donation may be tax deductible.  Our tax ID number is 23-7170086 for your records. Our Arizona QCO Code is 20690. 
Thank you for your consideration and generosity!



Through your RunSignUp profile, download and print your custom BBBS  race Bib with your assigned number.

For running the Virtual ACTUAL Observatory Mesa courses, the race begins at the Thorpe Park Picnic Ramada north gate. Download the map or GPX file to see the details of each course. Run your race between August 14th and August 25th.

For running a Virtual ANYWHERE - Your Own Course - find your favorite half marathon, 5K or Kid's 1 mile dash course.

For BOTH - the Actual Observatory Mesa course and Virtual Anywhere course - use the RaceJoy App for easy integration. With RaceJoy, you can track your run and directly upload your finish time to the results. You can also pass on Race Joy and manually load up your time to the results too.


Log your run finish time in your RunSignUp Big Brothers Big Sisters of Flagstaff profile!! 
Once registered, you will receive an email, separate from your confirmation, that contains a direct link to post your results.  These instructions describe the several ways to log your time.

* from the RunSignup Race Page -- Navigate to the RunSignup race page > select the Results tab > select Submit Virtual Result.  Search for your registration, select Submit Virtual Results > enter in your time > select Submit/Update Results.
* from Your RunSignup Profile -- Navigate to your RunSignup profile by selecting the Profile Icon at the top right hand corner.  Under your Upcoming Events > select Submit Virtual Results > enter in your time > select Submit/Update Results.
* from your Big Brothers Big sisters of Flagstaff RunSignup account -- Log in to your RunSignup account and select Big Brothers Big sisters of Flagstaff, Manage Registration.  On the footer of the page, select Virtual Race. select Submit/Update Results.

AND - if you use the RaceJoy app on your phone on either the Actual half marathon route or the Anywhere route, you can automatically send your time up to your RunSignup results log directly from RaceJoy.  

Check it out!! 

When you are in the RESULTS page, search for / click on your name.   Once you load your result and get a Success message, you can see your finish post to the roster.  And updating your result can be completed quickly without a full log-in by entering your E-mail or last 4 digits of your phone number!

This is also the spot from where you can load up your great photos -- share the run!


Available for Apple and Android devices.

Interactive Race Day Experience with RaceJoy

Live Phone Tracking, GPS Progress Alerts and Cheers!

We are providing you with RaceJoy as part of the official race experience for the Big Brothers Big Sisters of Flagstaff Dave McKay Memorial Half Marathon and 5K Run/Walk (Virtual or Regular).

Download the RaceJoy mobile app in advance to ensure proper phone setup. Invite your friends and family to track you and send you cheers!

Some key RaceJoy features include:

GPS Progress Alerts

  • Receive continual progress updates as you complete your goal.

Live GPS Tracking

  • Remote spectators can track your progress live in a map view. You can also track others.


  • Receive supportive audio cheers from remote friends & family.

Virtual Results (virtual events only)

  • Enter your race-assigned bib number to automatically submit your finish data for real-time scored results.
To use RaceJoy, you must carry your phone and activate tracking on the day you complete your race.
View RaceJoy How-To
Race Website

Additional race information can be found at

Title Sponsors
Race Contact Info

If you have any questions about this race, click the button below.


The Big Brothers Big Sisters of Flagstaff Half Marathon is part of the 2021 Arizona Half Medal Series Challenge. Run some of Arizona's best half marathons and win a medal!  Visit for more details! 


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