The book that takes you inside the scandals, lawsuits, and major players behind the fastest growing sport in US history.

Book Cover

As seen in/reviewed by:

The Wall Street Journal
“I type this with my fingernails residually stained with mud. It’s Erin Beresini’s fault. Her book about the obstacle course racing (OCR) craze had me so intrigued that I signed up for a 5K race and spent a Saturday morning belly-crawling through mud, navigating precipices and plunging through a finish-line chute pumped chest-high with soap bubbles.” Read the full review here.

Outside Magazine
“The most authoritative insider’s guide to date.” Read the full review here.

Dean Karnazes, best-selling author of Ultramarathon Man and 50/50, ultrarunning legend
“Obstacle course racing has taken the endurance world by storm, and in Off Course Erin Beresini gives us an insider perspective on the conflict and appeal of these masochistic suffer-feats, culminating in her quest to complete the granddaddy of them all, the Spartan Ultra Beast. A must-read for anyone currently competing in, or considering taking on, one of these newfangled racing events.”

Gary Pomerantz, author of Their Life’s Work: The Brotherhood of the 1970s Pittsburgh Steelers, Then and Now
“Erin Beresini has gone gonzo. In Off Course she puts herself to the ultimate test in an obstacle racer’s world of alphas and ultras and Tough Mudders. Her narrative has humor and heart and a carnival of characters. Her sharp reporting puts the reader there. By the end of her riotous narrative, I had to wipe mud from my glasses at least twenty-six times.”

Library Journal
“Sports journalist and athlete Beresini (Outside) presents a spirited and engaging journey through the quirky sport of obstacle course racing…VERDICT Beresini adopts a lighthearted, conversational tone as she compellingly portrays the unusual cast of characters who have driven this unorthodox sport’s rapid growth and embraced its no-excuses military-­inspired ethos. Best suited to endurance athletes, CrossFit fans, or other fitness devotees who may also like the more serious Born To Run by Chris McDougall.”

Tung Yin on
“I think this book is even better than ‘Born to Run.'”

NPR Los Angeles’ Air Talk with Larry Mantle (click to listen)
Off Course is a must read of the season and a book to sit on every obstacle racer’s shelf.”
“If you like the way Christopher McDougall of Born to Run brings the reader through the sport of ultra running through his own experiences in the world you will enjoy Beresini’s book.”
Read the full review here.

Tung Yin on
“I think this book is even better than ‘Born to Run.'”
“Terrific, fun look at obstacle course racing.”

Curious about OFF COURSE? Check out these excerpts on
Obstacle Racing’s Most Famous Athlete
Get Fast for an Obstacle Course Race with CrossFit

Don’t miss out on the fun, fascinating OCR conversation! Order your copy today at any of these cool places:

Barnes & Noble
Straight from the publisher

Love and dirt,


Come race with me at Spartan Race Malibu!

by Erin on November 7, 2014


Come race with me and Team OFF COURSE! Everyone from seasoned racers to total newbies welcome. We’re gonna rock the course together. Use this discount code for 10% off the Malibu race (or any other Spartan race!): SPARTANBLOGGER

Off Course finish share

Race details:
Date: December 6
Course: 4 miles. Mud. A bunch of awesome teammates.
Location: Calamigos Ranch, Malibu, California (corner of Kanan and Mulholland)

Here’s a Malibu finish line mud slide to get you psyched up! (click on it)


Woo hoo!

Love and mud,


The Best OCR Shoes

June 29, 2014

In which I lend my OCR shoe advice to a fellow journalist: What Are the Best Shoes for Obstacle-Course Racing? By: JOE JACKSON

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The Ego That Strava Giveth, Strava Taketh Away

March 20, 2014

The story of that one time I had a QOM, then didn’t. It all started with a ride in January. Jimmy (my husband) and I started pedaling 10 minutes ahead of a local Saturday hammerfest known as the Donut Ride. The group leaves at 8 a.m. from a Starbucks in South Redondo Beach and they […]

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Cover Story! Triathlete’s TRAIN LIKE A PRO Feature

March 1, 2014

Check it out in the March 2014 issue!

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British Runner GPS Runs 240-Mile Tokyo 2020 Emblem

September 7, 2013

Joseph Tame is probably the world’s most well-recognized GPS runner.  (GPS runner meaning he creates images out of his workouts’ GPS coordinates.) He’s definitely the most recognizable runner in his adopted hometown of Tokyo, where he can’t hide his tallness or his Britishness. And he doesn’t try to, either, opting for neon getups and wielding multiple iPhones […]

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August 22, 2013

Welcome! Check back often for new clips!

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September Blowout! OCR in Outside, Brain Training in Triathlete

August 22, 2013

Grab the latest issues of Outside and Triathlete for two big specials (yay!): OBSTACLE RACING 2013: THE COMPLETE GUIDE Obstacle-course racing is the nation’s fastest-growing sport, with millions of annual participants. It’s time to join the party with our handy guide to all things obstacle racing. TRIATHLETE MAGAZINE: Get Psyched!   BONUS! The latest on […]

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COVER STORY: The New DNA Diet & Fitness Coach Gets Inked

February 9, 2013

Check out the February issue of Outside Magazine for my latest story on how blood-based nutrition recommendations can kick your performance up a notch. And a very exciting announcement! The February issue marks the debut of my Fitness Coach column in the magazine. The first question answered: How long does it take to detrain? Happy […]

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How Far is Too Far? Running and Your Heart

December 17, 2012

My latest in December’s Outside: IS RUNNING DANGEROUS FOR YOUR HEART? Can high levels of endurance training lead to irreversible heart damage? A new report is giving athletes panic attacks.

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