2025 Portland Cinco de Mayo Half Marathon, 10k, 5k | Scenic Course Along Springwater Corridor Trail

From our sponsors:
Cinco de Mayo Half Marathon, 10k, 5k
May 4, 2025
8:45am – Kids Fun Run
9:00am – Half Marathon
9:30am – 10K
9:45am – 5K
$45-110 | All Ages
Register: runcincodemayo.com

Sellwood Riverfront Park
1221 SE Oaks Park Way, Portland, OR 97202

Celebrate Cinco de Mayo with Running a Half, 10k or 5k on May 4th!

Join Negative Split for this year’s Cinco De Mayo Half Marathon, 10k, 5k, and kids run on Sunday, May 4th. This year’s race starts and finishes at Sellwood Riverfront Park.

Along with festive decorations, treats & quesadillas, you’ll end the day by earning a finisher shirt, custom finisher medal, and support from Go The Distance, our race charity partner. Race registration at runcincodemayo.com