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Negative Split is a grassroots-focused event organizer and timing company based in the Pacific Northwest, dedicated to helping runners “Start Strong, Finish Stronger”.
They produce a broad calendar of memorable races year-round — from 5Ks to full marathons across Washington, Oregon, and Idaho. In Oregon specifically, Negative Split now hosts three longstanding Portland-area events that have found a new home under their leadership in the past few years, ensuring these beloved races continue with the same spirit and community connection runners have come to expect.
CALENDAR OF EVENTS
Cinco de Mayo
- Distance: 5k, 10k, and Half
- When: Saturday, May 3rd
- Where: Portland, OR
Grateful Dad
- Distance: 5k, 10k, and Half
- When: Saturday, June 20th
- Where: Portland, OR
The Great Pumpkin Run
- Distance: 5k, 10k, and Half
- When: Saturday, October 24th
- Where: Portland, OR