
In 38 days · Sat, Aug 8, 2026
Saturday, August 8th, 2026
Actual Course - Thorpe Park Flagstaff, Flagstaff AZ
Half · 5K
About this race
On August 8th, join Flagstaff's oldest race, and the 2nd oldest half marathon in Arizona sponsored by Kinney Construction Services! This year we are hosting our 49th annual race on our challenging and breathtakingly beautiful course.
The Big Brothers Big Sisters of Flagstaff Half Marathon and 5K are walker-friendly events!
Our beautiful course starts at Thorpe Park and climbs the steep urban trail onto Observatory Mesa (where astronomers discovered Pluto) and follows dirt roads with spectacular views of the San Francisco Peaks.
New for this year, we are also hosting a split the pot fundraiser, see details below!
The race is also part of the 22nd annual Flagstaff Running Series value package of five of Flagstaff's most iconic foot races.
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