My form was fine… until I ran slower.
Key Takeaways
- Fixing form isn’t about one quick tip—it’s consistent drills and strength work.
- Slower running doesn’t always mean better running; form can break down at marathon pace.
- Heel striking isn’t always bad—overstriding is the real problem.
It wasn’t the hard workouts that nearly broke me—it was the medium ones. The ones I thought were chill. The “I can hold this pace forever” marathon sessions.
That’s where my form started to fall apart.
I was slightly heel striking. Mildly overstriding. Nothing huge. But over 42.2k, those small inefficiencies stack like credit card debt you don’t check until it’s too late.
The weirdest part? When I ran fast—intervals, sprints—my form was solid. Midfoot strike, landing under my hips, no strain. But at marathon pace? My stride got lazy. I’d drift. Heel first. Hamstring strained. I knew I couldn’t stop training. I had a sub-3 pacing goal in seven weeks. So I had to fix it on the run—literally.

Here’s what actually worked:
- Cadence drills with music at 182 BPM. Just enough to keep me alert and upright.
- Form check alerts every 3 minutes. Annoying, but necessary.
- Plyometrics + uphill drills: A-skips, B-skips, high knees, butt kicks.
- Glute activation with bird dogs and donkey kicks (the real MVPs).
- Strength routines, skewed toward my weaker left side.

And most importantly: I practiced at race pace with intentional form.
People think heel striking is the enemy, but it’s not that simple. Overstriding is the real issue. A slight heel strike under the hips? Fine. But reach out with your foot and you’re breaking, not running. It’s not about one magic drill. It’s about repeating small, mindful movements until they become second nature—especially when you’re tired.
I still do strength. I still do mobility. But the biggest shift? I treat form like a skill to be trained, not a gift you’re born with.
It took a week to feel better. It’ll take months to make it stick. But that’s okay.
Fixing your stride doesn’t mean stopping your training. It just means training a little smarter.
Timestamps
- [00:00] How I found out my form was falling apart
- [00:24] Why my sprint form is perfect but my marathon pace is sloppy
- [00:46] What led to my recurring hamstring strain
- [01:20] Three running myths I busted during training
- [03:26] The truth about heel striking
- [05:06] Slower paces don’t always mean better form
- [06:43] How I fixed overstriding with cadence and drills
- [07:12] Why form changes take time
- [08:54] New strength and mobility drills I added
- [11:41] Final recap: small changes = big gains
Listen below or watch above to the full episode or read the article summary to level up your run game.
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