Running Races in Fort Collins, Colorado — 2026

There are 20 running races in Fort Collins, Colorado in 2026. The next is the 2026 Flying Pig 5K on April 26. Distances include 5K races, ultras, trail runs.

2026 Flying Pig 5K

Sun, Apr 26 · Fort Collins, CO Fort Collins

Road 2026 Flying Pig 5K

From $40 Open Closing Soon

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FireKracker 5K Training

Sat, May 2 · Fort Collins, CO Fort Collins

Open

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The Colorado Marathon

Sun, May 3 · Fort Collins, CO Fort Collins

Road 5K10KHalf Marathon +1

From $35 Open Closing Soon

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10th Annual Fort Collin's Mother's Day 5K

Sat, May 9 · Fort Collins, CO Fort Collins

Road 5K Adult5K Youth (17& Under)

From $25 Open

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Healing Warriors Program 2026 Annual 5K Fun Run

Sun, May 17 · Fort Collins, CO Fort Collins

Healing Warriors Program 2026 Annual 5K Fun Run

From $40 Open

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36th Annual Fire Hydrant 5K & Expo

Sat, May 30 · Fort Collins, CO Fort Collins

Closed

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StepUp For Women And Recovery

Sat, Jun 6 · Fort Collins, CO Fort Collins

Road 5k Run/Walk - In-Person

From $40 Open Closing Soon

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Sam's Rainbow Run

Sat, Jun 13 · Fort Collins, CO Fort Collins

Virtual 5k Run/WalkVirtual 5kSTUDENT 5K

From $25 Open Closing Soon

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FireKracker 5k

Sat, Jul 4 · Fort Collins, CO Fort Collins

Road Kids 1-MileElite 5kFireKracker 5k

From $5 Open

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Wild West Relay

Fri, Jul 31 · Fort Collins, CO Fort Collins

Wild West Relay - Get Your Ass Over the Pass - High School TeamWild West Relay - Get Your Ass Over the Pass - Super Ultra team (1-3 runners)Wild West Relay - Get Your Ass Over the Pass - 12 person team (7-12 runners) +1

From $660 Open Closing Soon

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Eltuck Valley 5K - Lory Summer Trail Series

Tue, Aug 4 · Fort Collins, CO Fort Collins

Road Eltuck Valley 5k

From $25 Open

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Choice City Running Festival

Fri, Aug 7 · Fort Collins, CO Fort Collins

Road Jane Welzel Mountain Avenue MileHuman Race 5kHuman Race 10k +4

From $20 Closed

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Fort Collins Running Summit

Sat, Aug 8 · Fort Collins, CO Fort Collins

2026 Fort Collins Running Summit

From $80 Closed

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Fall Equinox

Sun, Sep 20 · Fort Collins, CO Fort Collins

Virtual 5 MileVirtual 5 MileHalf Marathon +1

From $50 Open

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Homecoming 5K - Colorado State University

Sat, Oct 3 · Fort Collins, CO Fort Collins

Virtual Homecoming 5K5K CSU Alumni5K CSU Student +2

From $25 Open

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OTILLO Swimrun Colorado

Sun, Oct 4 · Fort Collins, CO Fort Collins

Triathlon Sprint SoloExperience SoloExperience Team +3

From $70 Open Closing Soon

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The Long View Marathon

Sat, Oct 10 · Fort Collins, CO Fort Collins

Road The Long View 5kThe Long View Half MarathonThe Long View Marathon

From $35 Open

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Blue Sky Trail Marathon & Half Marathon

Sat, Oct 17 · Fort Collins, CO Fort Collins

Trail Blue Sky Trail Half MarathonBlue Sky Trail Marathon

From $90 Open

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Colorado 24 Hour Run

Sat, Nov 7 · Fort Collins, CO Fort Collins

Road 12 Hour6 Hour Relay12 Hour Relay +3

From $90 Open Closing Soon

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Resolution Run - Fort Collins

Thu, Dec 31 · Fort Collins, CO Fort Collins

Road 5K

From $25 Closed

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