Cerus obstacle races, mud run, and OCR information, distance, cost, dates, calendar, discounts, obstacles, reviews, and more

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Cerus is the first event that combines Obstacle Racing with “Rucking” (Hauling a weighted backpack).

Upcoming Cerus Events


We don't know of any upcoming events for Cerus. You can check out our list of past events and reviews below, or if you know of an upcoming race, add it to our calendar!



Browse our calendar of previous mud runs, mud races & obstacle races for Cerus

Cerus News & Featured Reviews

Cerus Reviews from the Community

Average rating: 4.75 / 5 from 2 reviews.

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CurerusRuk hooked me on rucking

Jan 02, 2019 by Rich Leeper

This was my first ever ruck event. I am a big fan of OCR and was more than happy to support a local northern Colorado race. I was glad I did. The venue was awesome. The obstacles were great and spaced well and the terrain was amazing. I was a little hesitant to try a race that is essentially a 5 mile heavy carry but it was manageable. You could take the weight off for climbing obstacles so it wasn’t bad at all and it kept the faster runner folks grouped up so it was more of a competitive race. Hard to run away from the crowd with 30 pounds on your back. I give this one two thumbs up for the creativity and competitiveness of turning a good OCR into a challenging fun event by adding a weighted back.


The Ultimate Mud Run, Obstacle Race and Adventure Race Guide , USA 5.0 5.0 1 1 This was my first ever ruck event. I am a big fan of OCR and was more than happy to support a local northern Colorado race. I was glad I did. The venue was awesome. The obstacles w