People love to joke that ultras are “90% mental.” I think that undersells it.
Because out there — when your legs are trashed, your stomach hates you, and everything hurts in that dull, all-over way — your mind isn’t just part of the race. It is the race.
I’ve had moments deep in ultras where my body felt completely wrecked… and then, somehow, an hour later I was moving smoothly again, like someone flipped a switch. Same legs. Same blisters. Same fatigue. Different headspace.
That’s the weird, beautiful, terrifying thing about ultras: how fast things can change.
One minute you’re convinced you’re done. The next you’re running downhill, grinning, wondering what the hell you were so dramatic about.
The runners who finish aren’t the ones who never hit those lows. They’re the ones who learn how to sit with them without panicking. Who don’t believe every dark thought just because it shows up loud and convincing.
This section isn’t about being “mentally tough” in some chest-thumping way. It’s about learning how to ride the waves — how to break the race down, calm your nervous system, reset your brain when it spirals, and delay quitting long enough for the fog to lift.
Because in ultras, the mind quits first… and it also comes back online way faster than you think.
If you can learn to work with that — instead of fighting it — you give yourself a massive edge when the race really starts.
Break the Beast Into Chunks (Like a Real Coach Does)
Here’s the deal—standing at the start of a 100-miler and thinking “I gotta run 100 miles” is like standing at the base of Everest and saying “I’m just gonna jump to the top.”
Nope.
That’s a meltdown waiting to happen. So, break it down. Segment it. This mental trick is a game-changer. Ten-hour race? Cool. That’s ten mini races. Get through one, reset, and go again.
Personally, I like to chunk ultras by aid stations.
That’s how I coach folks too. Say the next one’s 8 miles away? That’s the only race I care about in that moment. Forget mile 92—we’re not there yet.
I’ve had athletes frame a 50-miler as five 10-mile blocks. Some go by terrain: “Climb the hill (Block 1), cruise the downhill (Block 2), survive the flats (Block 3),” and so on.
One study in the Journal of Strength & Conditioning Research actually backs this up—breaking a big challenge into smaller chunks keeps your brain from going into panic mode.
Think of it like this: it’s easier to run 1 mile 100 times than to run 100 miles once—at least for your brain.
Top runners get this. At mile 50, they stop looking ahead and start counting down. Some reset completely every few hours—like starting a fresh race. And when you’re deep in the suck, even saying “just get to that tree” works.
I’ve used landmarks, songs, and even the idea of a cold Coke at the next station. Trust me—when your legs are toast, your brain needs breadcrumbs to follow.
The Toolbox: Mantras, Breathing, and Head Games
Ultras mess with your head. That’s why you need mental gear just like you need shoes and gels. I call it the “toolbox”—the tricks that keep you from unraveling when the wheels fall off.
Mantras: Little Words, Big Punch
These are tiny phrases that keep you moving when everything says stop. My go-tos? “Keep grinding.” “Strong body, stronger mind.” And sometimes just “relentless.” One time, I ran an entire loop just repeating “One more step” out loud like a crazy person—and it worked.
Pick a mantra that means something to you. Make it yours. Scott Jurek once used “Sometimes you just do things”—simple, weird, but powerfully Zen. Humor helps too—say something ridiculous if it breaks the tension. I’ve even muttered “Don’t puke, don’t puke” on steep climbs. (Spoiler: I puked.)
Breathwork: Calm the Chaos
When your heart’s racing and you’re on the verge of freaking out, go back to the breath. Inhale for three steps, exhale for three. It’s like a metronome for your brain. I’ve used this during climbs when my legs were jelly and my chest was thumping like a jackhammer. Slow breath = calm mind.
Deep belly breaths also help with nausea or that spinny, out-of-body feeling you sometimes get late in races. You’re basically telling your body, “We’re good. Chill.”
Visual Anchors: Mind Movies That Work
Visualization isn’t just for pre-race prep—it can work mid-race too. I’ve imagined I was just running to meet a buddy at the park instead of dying at mile 70. I’ve pictured finishing strong so many times in training that, during races, I know the finish line in my mind before I ever see it.
Pro runner Devon Yanko has a cool tactic: she gives each race loop a theme. No music on loop one, tunes for loop two, pacer magic on loop three. That kind of mental shift can freshen the brain when the legs can’t carry the load alone.
I’ve even given myself “missions”—like “On this stretch, count how many squirrels you see.” Sounds goofy? Maybe. But it works. It keeps you from spiraling into “I hurt, this sucks, why am I doing this?” mode.
The Bonk
Look, if you’re toeing the line at an ultra, you’re going to bonk. That’s not a maybe. It’s a “when.” I don’t care how dialed your training was or how clean your nutrition plan looked on paper—at some point, your body’s going to slap you with that low-battery warning. That’s the bonk. It’s not the end—it’s the cover charge.
Unlike in a marathon where a bonk can nuke your PR dreams, in ultras, it’s more like a mid-race gut check. A lot of the time, it’s just your blood sugar flatlining. You fix that with fuel. Doesn’t matter if your stomach’s being a diva—get some sugar and salt down. Gels, Coke, gummy worms—whatever you can keep down. Then give it 10, maybe 15 minutes. Boom—zombie runner turns human again. Seen it happen hundreds of times. Lived it, too.
I’ve watched runners crawling at mile 50 come back swinging at mile 55 after a hit of soda and some salty chips. One dude I coached bonked so hard at mile 62, he sat on a rock talking nonsense—but 20 minutes later he was passing people like nothing happened. That’s the game.
It’s Supposed to Suck
You don’t get to mile 70 without flirting with some darkness. And that voice in your head whispering, “This hurts, maybe you should stop”? Yeah, that guy’s gonna get loud. But he’s not the boss. He’s just scared.
Ultrarunners have a few mantras for these moments. My favorite: “It’s gonna hurt no matter what, so I might as well keep going.” Another gem: “This too shall pass.” You start to expect the suck. And once you expect it, it loses its bite.
Some runners even laugh when everything starts falling apart. Gallows humor, man. One time I was hobbling through mile 78 with a blister the size of a grape and I just started cackling. Why? Because I knew I was earning something. You don’t get that kind of grit without wading through some pain.
Your Mind Will Quit First — But It’ll Also Reboot Fast
Here’s the crazy part: the mind breaks before the body. That’s backed up by research too. The “central governor theory” says the brain pulls the emergency brake way before your legs are actually toast. So when your brain screams “I’m done,” your body still has miles in the tank.
And the flip side? The mind also rebounds faster. I’ve had mental breakdowns at mile 40, thinking there’s no way I can keep going—then 30 minutes later, I’m chasing the sunrise at mile 50 feeling reborn. It’s wild. One bad hour doesn’t mean the day’s over. Ride the wave.
If you’re stuck in the suck, don’t treat that voice like gospel. Instead, tell yourself: “Let’s reassess at the next aid station.” Often by then, things have shifted. Sun’s out. Legs warm up. You find rhythm again. That “I want to quit” moment? Just a speed bump.
DNFs Aren’t the End — They’re Training in Disguise
Let’s be real. Sometimes, you’ll pull the plug. DNF (Did Not Finish). Feels like a gut punch. But guess what? Most of my runners who crush their next big ultra do it on the back of a DNF. Those “failures” teach you more than smooth finishes ever will.
Maybe you blew up your pacing. Maybe you didn’t eat enough. Maybe your reason for running wasn’t strong enough that day. It’s all info. And next time, you show up smarter—and hungrier.
I had a brutal DNF at my first 100K. Missed a key fueling window, cramped so hard I thought both hamstrings exploded. But the next race? I nailed every checkpoint. Because pain taught me what spreadsheets couldn’t.
Ride the Lows, Surf the Highs
This is the paradox of ultrarunning. Your brain’s gonna fold long before your quads give out. But that same brain can be coaxed back in—faster than you think. Sit for five minutes. Eat something. Watch the sunrise. You can go from “I’m done” to “Let’s go” in less than a mile.
So when you first think, “I’m quitting,” don’t act on it. Bargain with your brain. Say, “Okay, we’ll check again in 20 minutes.” Half the time, by the next aid station, you’re a new runner. That’s the trick—stretching the space between “I want to quit” and “I’m actually stopping.”
Every time you push through that moment, you build the mental calluses that make you tougher next time. That’s how you grow. That’s how you earn it.