You Can’t Borrow Tomorrow’s Fitness Today

Mile one of my last half marathon, I went out too fast.

I knew it while I was doing it.

I was in the group towards the front, the group a little faster than me. The pace felt good, which was exactly the problem. The adrenaline was there, the crowd was there, the legs felt fresh and willing. So I ran the pace my body wanted instead of the pace the race required.

My goal was simple: stay ahead of the two-hour pacers. I did, until mile seven. I could still see them at mile eight. By mile ten, they were gone.

Miles eight through thirteen weren’t racing. They were surviving. The sub-2 was over. The only goal left was to finish. And I did, just not the race I’d shown up to run.

Here’s what I know now that I knew then but didn’t act on: the first mile isn’t the time to run the pace you’re capable of. It’s the time to run the pace the second half requires. You don’t get credit for mile one. The clock only cares about mile thirteen.

I’d borrowed against the second half of the race to feel good in the first half.

The debt came due at mile ten.

I see this pattern constantly in the couples I work with.

They have a hard conversation, a real one, the kind that cracks something open. Somebody finally says the thing they’ve been carrying for two years. Somebody else actually hears it. There’s a night of genuine connection, maybe a week of it. And because it felt significant, because it cost something, they treat it like a deposit large enough to live off of for a while.

It isn’t.

One conversation can’t do the work of three years of patterns. A retreat weekend can’t restructure a relational system. A breakthrough is real, but it’s a data point. Not a base.

The mistake isn’t having the conversation. The mistake is the assumption that follows it: that the hard thing is done, that the account is funded, that coasting is now a reasonable option. That’s borrowing from tomorrow’s fitness to feel like you’re ahead today.

The marriage system knows what you actually put in. It keeps accurate books.

The further I’ve gotten into running, the more I’ve learned that base-building doesn’t feel like anything is happening. The whole point of slow aerobic work is that it’s building capacity you can’t feel yet, capacity that will show up at mile ten when the borrowed-against version of you would be done.

I’m not supposed to feel it in June. I’m supposed to feel it in October at my next sub-2 attempt.

Most people can’t tolerate that gap. They want feedback. They want to feel the effort in proportion to the work. So they run harder. Or they push for some resolution that feels like progress, even when it spends what they haven’t earned yet.

I had a client tell me once that he was putting in “so much more work” than his wife was, and that nothing was changing. What he meant was: he’d had three good conversations and expected the system to respond. When it didn’t, he concluded the work didn’t count. So he withdrew. Neither of those moves was what the race needed.

What the race needed was the consistent, unsexy work of showing up in the boring middle. Not spending what you don’t have.

There’s a version of maturity that is mostly about tolerating the gap between what you put in and what you get back.

The runner who goes out too fast isn’t undisciplined in a simple sense. He’s doing something harder than just running. He’s managing the discomfort of running slower than his body wants to go, which feels like restraint, which feels like losing ground even when he isn’t.

Marriage works the same way. Holding on to yourself when you want to react. Not taking the bait when the bait is right there. Letting a conversation end without the resolution you wanted. Not using a moment to be right. These don’t feel like training.

They are.

The couples still genuinely present with each other after twenty years didn’t bank on peak moments. They built a base. Slowly, without visible return, through a thousand ordinary moments where they didn’t spend what they hadn’t earned.

October comes eventually.

But only if I run mile one at the pace mile ten requires.

Dr. Corey Allan
Written by

Dr. Corey Allan

Corey Allan, PhD, LMFT

Marriage therapist, author, and host of Sexy Marriage Radio since 2012. 20+ years in private practice working with couples and individuals. Differentiation-based approach. Remote sessions worldwide.