Some of the least mileage I’ve ever run—and still raced well—was back in my teenage years.
I was running for my local high school and playing soccer at the same time. Training was simple. Most weekdays we ran about three miles. Weekends were usually off. We raced once a week—5Ks for cross country, mile and two-mile races for track—and did one interval session during the week.
All in, I was probably running around fifteen miles per week.
And yet, I was very fit for those distances.
There’s an important caveat, though.
We didn’t have a coach emphasizing pacing, recovery, or long-term development. In reality, the boys just raced every single day. Every run turned into a competition to see who was fastest. Being young—and recovering quickly—was the only reason we got away with it.
That approach doesn’t apply to most of us now.
It doesn’t apply to adults. It doesn’t apply to parents. It doesn’t apply to people working full-time jobs who still want to enjoy sport and stay healthy for the long term. Hard efforts can build fitness quickly, but they’re also one of the fastest ways to get injured or to start disliking the sport altogether. That’s not what I’m interested in here.
When I talk about busy runners, I’m not talking about people who lack motivation. I’m talking about everyday adults—moms, dads, professionals—people with real constraints on their time who still enjoy athletics and still want to improve. Sport is an outlet for them, not an obligation.
You don’t need endless hours every week to make progress. A few intentional hours can go a long way, depending on where you are in your fitness journey. It doesn’t matter if you train early in the morning or late at night. It doesn’t matter if you can only fit in a twenty-minute run during your lunch break, or if you’re pushing a jogging stroller because you’re on baby duty.
I’ve done all of it.
And there hasn’t been a single training session I’ve regretted, even when it wasn’t perfect. Sometimes you run while the kids are napping. Sometimes you run after they’re asleep. You know your own schedule. If training matters to you, you can usually find a small window to make it happen.
One of the most common mistakes I see busy runners make—especially when they’re trying to figure out how much they should run per week—is doing too much before they’re ready for it.
Just recently, a friend of mine training for a marathon got injured two weeks before race day. He took the following week off and then went out for a very conservative two-mile run four days before the race. He struggled. His knee was still bothering him, and yet he was seriously considering racing.
When I looked at his training, the issue became clear. He had steadily ramped his mileage up to about forty miles per week. During that peak week, he ran a twenty-mile long run. A few days later, his knee started giving him problems.
That long run alone was half of his total weekly volume.
For most runners, the body simply isn’t prepared for that kind of load. Step after step, the cumulative pounding adds up quickly, even for runners who consider themselves resistant to injury. This is one of the most common ways busy runners break themselves trying to “do it right.”
I’d much rather see someone take a more patient approach, let their body adapt over time, and stay healthy than push too hard too soon and lose months of training to injury.
For me, “enough” has very little to do with mileage.
Enough means my body feels generally healthy. It means I can do what I need to do day to day. It means I’m present for my family, my kids, and my friends, and that training isn’t negatively impacting my work or my life outside of sport.
If those things are in place and I’m still progressing, I know there’s room to push. But the moment training starts pulling too much from those other pillars—or my body stops responding because I’m not letting it recover—that’s my signal. That’s enough. It’s time to adjust.
Most busy runners don’t need complex plans or endless workouts. What they need is a structure that fits their life.
For many, that might look like three to five runs per week: one day that challenges you a bit, one longer run that builds durability, and the rest kept truly easy. Not heroic. Not rushed. Just consistent.
If you have more time, you can add mileage around that structure. But adding more work only makes sense when it doesn’t compromise recovery or consistency. More running only helps when your body can actually absorb it.
An old coach once told me, “If you only do slow running, you’ll be a good slow runner. If you only do fast running, you’ll get injured.” That idea has stayed with me over the years.
We need the right training, the right tools, and the right support. When those are balanced, the rest is simple. Trust the process and put in the work.
Not every week needs to be big. Not every run needs to prove something. Real progress comes from consistency, not from trying to win training.
More isn’t always better.
Better is better.