It started as a reasonable idea.
I wanted to do something physically hard for my 28th birthday. Something that would hurt a little, the kind of thing where you feel it in your legs for a week and can look back and say, yeah, I did that. So I told my friend, my ex-cofounder, that I was going to run 28 miles on my birthday.
He looked at me like I'd suggested a light jog.
"That's too easy for you," he said. "You should do something harder."
What followed was one of the more unhinged proposals anyone has ever made to me. Before my 28th birthday, I had to run every distance from 1 mile to 27 miles, one run per year of my life. And then, on my actual birthday, I'd run the full 28. The rules were simple:
- Runs didn't have to be consecutive.
- Every run had to be faster than a 10:00/mile pace. No walk-jogging. No exceptions.
I said yes immediately. Not sure what that says about me.
Any single run on that list is survivable. A 5-miler is a Tuesday. A 20-miler is a hard Saturday. Even a 27-miler, brutal, but people finish them. The question wasn't whether any individual run was possible. The question was whether all of them together, stacked across four months, around a full-time job at a demanding startup, around travel, around a life, whether that whole system could hold. I genuinely didn't know. That uncertainty was the whole point.
The Math Nobody Warned Me About
Here is something I did not fully appreciate when I agreed to this challenge: 1 + 2 + 3 + ... + 27 = 378 miles. That's nearly 14.5 marathons. And that's before the birthday 28-miler even entered the picture.
So I did what I do: I built a spreadsheet.
I mapped out every weekend for four months. Every run, what distance, what day. I planned my diet, my recovery days, when to stack mileage and when to back off. I sequenced the long runs so I wasn't destroying myself two weekends in a row. I had contingency plans for travel weeks. And I set up a progress bar across the top of my GoogleSheet. You know, like one of those conditionally formatted cells that starts basically invisible and slowly fills in to green as you complete runs. Watching it inch toward full green every week was, honestly, the only thing that kept me sane for some of those runs.
It was one of the more logistically complex things I've ever managed, and I've helped build hardware products. The planning wasn't just prep. It was load-bearing. The system had to work or the whole thing fell apart.
I had seven runs of 20 miles or more. Those are the ones that sound hard. They were. But here's the thing nobody tells you: distance and difficulty are not the same thing.
What Actually Happened Out There
You'd assume the brutal days were the long ones. They weren't always.
April was the early miles. Short stuff, mostly. The 4-miler was mid. The 5-miler destroyed me in a way that had no business coming from five miles, dehydrated and hurting the whole way. The 6-miler I was flying until I wasn't. The 8-miler was the sweet spot, effortless, the kind of run that makes you think you understand your body. I remember thinking: okay, I can do this.
May is when it got real. The long runs started stacking. The 15-miler felt incredible, my girlfriend Molly crewed me at mile 11, and I was airborne the last 3 miles. The 10-miler was one of the best things I've ever done. 5 AM, headlamp on, watched the sunrise at Ocean Beach. There's something about being the only person moving in the dark and then watching the world slowly turn on. It made me feel like I had my life together. The 9-miler was the same energy, completely different universe. I was in New York visiting a friend, got up early, still firmly on PST, and ran through Central Park in the rain reliving the Charli XCX concert from the night before the whole way. Cinematic.
And then the 18-miler. May 17th. Simply horrific. I vomited twice. Molly showed up at mile 15, not to fix anything, just to hand me water and exist in the same space as me. Turns out that's exactly what you need when you're 18 miles deep and falling apart.
June and July were the heavy months. The 16-miler was mentally one of the worst days of the whole challenge. The long runs kept coming and the body started keeping score in ways I couldn't plan around. The 24-miler I had misplanned my route and spent the last mile and a half running a two block loop around my house to make up the distance. It was as demoralizing as it sounds. The 26-miler I hit the wall hard. Molly was there. When you're that deep in it you don't need to be saved, you just need a witness. A high five, a top off on electrolytes and some running gus, and someone who shows up anyway.
The 27-miler was June 7th. I found new depths of the pain cave. Dante had nine circles of hell. I think I found a few he missed.
The 19-miler was the last run before the birthday. August 12th. By then the weight of four months had accumulated in a way I hadn't anticipated. When I finished I knew it was done. I'd answered my own question. The system had held.
The Birthday Run
The birthday run. 28 miles.
I got up at 5 AM. Put on my shoes. Made it half a mile.
And then I stopped.
My body was just done. Four months, 378 miles, seven marathon-esque distances, it had given everything it had. There was nothing left to prove and nothing left in the tank, and somewhere in that first half mile in the dark I think I knew it. I turned around and went home.
I swapped my running shorts for cozy sweats and walked the route I would have ran through Golden Gate Park to Ocean Beach. Called my dad on the way. Had a lazy breakfast at home. Went to the park with my friends.
I spent my 28th birthday with the people I love instead.
Was It Actually Possible?
Yes. That's the answer. The thing I thought might be impossible turned out to be possible, I just couldn't do the last 28 miles because my body had spent everything getting me there.
I made a deal with myself, for myself. Not for a race, not for anyone else. I just wanted to do something hard and find out where my limit was. And I found it. Half a mile into my birthday run, in the dark, alone. That's where it was.
The planning mattered. Without the spreadsheet, the sequencing, the contingency plans, the little green progress bar, none of it happens. Hard things are just a collection of smaller problems until they aren't. But you have to show up for every single one of them. Four months, 378 miles, irresponsible nights and long work weeks and a body that didn't always cooperate. I showed up anyway.
Endurance is just a channel. You load it up with distance and time and see what you're actually made of. That's why I keep coming back.
My ex-cofounder, who started all of this with one offhand comment, I have complicated feelings about him. They are mostly positive.
The full run log is here. One footnote: I ran the 1-miler in jeans. I'd forgotten about it and was already headed to dinner, so I just knocked it out.