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5K races in New Brunswick

5K races across New Brunswick: 15 with a confirmed date (32 more are waiting on a date). Fredericton, Moncton and Saint John have the most. Next up: Running Room New Year's Run - Atlantic on January 10, 2027.

Updated daily — every listing links to the organizer's official registration page.

10K racesHalf marathonsMarathonsUltramarathonsTrail racesObstacle races (OCR)

When

47 races listed

New races in New Brunswick, once a month

Newly listed races, and the registrations closing in the next three weeks. One email a month. Every subscriber is in the monthly $25 gift-card draw, held on the 1st. One click to leave.

5K races in New Brunswick — FAQ

How many 5K races are there in New Brunswick in 2026?
5K races listed for New Brunswick right now: 15 with a confirmed date, plus 32 that ran last season and haven't announced their next one. The list refreshes nightly as organizers announce new dates.
What is the next 5K race in New Brunswick?
Running Room New Year's Run - Atlantic in Fredericton on January 10, 2027.
Which New Brunswick cities host the most 5K races?
Fredericton (3), Moncton (3), Saint John (2).