About the All-Out Dog Days
The course follows Big Dry Creek Trail out and back, starting from an office park. The surface is mostly concrete with stretches of softer ground that increase on the longer routes, including a section of gravel through a regional park. The trail runs northeast, and the Flatirons sit on the horizon the whole way. Dogs race in their own division alongside their humans.
Early packet pickup happens the evening before at a local running store. On race morning, pickup opens well before the first wave goes off, but closes tight before each distance starts, so arriving early matters. The staggered start means shorter and longer distances all share the same morning without much overlap.
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All-Out Dog Days 2026 Results
Going by the 2026 results, this is a small, friendly field, with a competitive front end and a big recreational middle.
5K Results · 2026
141finishers
21:34winner
39:43median
1:18:16cutoff
Top 3: Adelaide Perr (21:34) · Chris Light (22:27) · Ethan King (22:41)
10K Results · 2026
95finishers
43:13winner
1:07:14median
1:47:37cutoff
Top 3: Kevin Kraus (43:13) · Manuel Mendoza Manriquez (45:27) · Lauren Ginn (45:41)
Half Marathon Results · 2026
83finishers
1:18:34winner
2:10:50median
3:42:25cutoff
Top 3: Brandon Rockwood (1:18:34) · Max Kohll (1:20:02) · David Forman (1:21:16)
The All-Out Dog Days has been held every year since at least 2013. That is as far back as RunSignup's records for this race go, so it may well be older.
How we calculate these stats: RunSesh calculates these figures from the most recent published results of past editions, sourced from RunSignup. We show aggregates only: field size, winning and median times, and the cutoff. We never publish individual finisher tables. Last updated Oct 25, 2026.
Distances & Start Times
13.1 Miles7/10/2027 07:00$65
10K7/10/2027 07:30$45
5K7/10/2027 07:40$35
13.1 Miles7/10/2027 07:00$35
10K7/10/2027 07:00$25
5K7/10/2027 07:00$20
Going for a Time?
Set a goal and get a pace band: every mile split on a card sized for your phone lock screen, so race morning needs no math.
Not sure what to aim for? The half marathon pace chart lists the pace for every finish time.
Where to Stay
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