About AerobAce

A MAF training companion built by an endurance athlete, for endurance athletes.

What is AerobAce?

AerobAce is a MAF training companion that calculates your personalised aerobic heart rate zone using the Maffetone 180 Formula and tracks every Strava activity against it. You get a clear picture of how much time you spend in your aerobic zone, and how much you don't.

The app is built for runners, cyclists, and endurance athletes who want to train smarter. Instead of guessing whether a session was "easy enough," AerobAce breaks down your heart rate data and shows you exactly where you stand. Use the free MAF calculator to find your zone, connect Strava, and let the app handle the rest.

My story

I'm Marcus, and I've been running most of my life. I started back in elementary school, did some competitions, kept it up through high school. Then life happened. Through my twenties and thirties I was still running, but casually and without much consistency.

A few years ago I started wearing a wrist-based fitness tracker, and something stood out: my heart rate during normal, easy jogging was consistently around 170 to 180 bpm. I wasn't sprinting or going all-out. Just regular jogging. That didn't seem right.

So I started digging into it, and that's how I found Dr. Phil Maffetone's MAF method. Part of that high heart rate was probably down to the wrist monitor not being very accurate (which is a common issue). But the bigger lesson was that I had no aerobic base to speak of.

I got myself a chest strap, started training below my MAF threshold, and committed to the process. Last year I ran my first marathon. I still have a ways to go in terms of aerobic pace and fitness, but the progress has been real and measurable.

AerobAce started as a tool I built for myself. I wanted a simple way to see whether I was actually sticking to my MAF zone, not just on a single run, but across weeks and months of training. Nothing out there did exactly that. Strava shows heart rate data but doesn't understand MAF zones. Garmin and other platforms have their own zone systems that don't align with the 180 Formula.

Building this tool helped me stay motivated. Seeing my MAF compliance improve over time, and watching my pace at the same heart rate get faster, kept me going through the slow early months. If it can do the same for you, that's exactly why I'm sharing it.

Built for the MAF method

AerobAce exists specifically for athletes following Dr. Phil Maffetone's approach to aerobic base building. The MAF method is simple in theory: train at or below your 180 Formula heart rate. But staying consistent takes real discipline. It's easy to drift above your zone without realising it, especially on hills or when you're feeling strong.

That's where AerobAce helps. The app analyses your heart rate data second by second and tells you exactly how much of each session was spent below, in, and above your MAF zone. Over time, you can see whether your aerobic base is actually improving, the way the MAF method is designed to work.

Ready to start?

Calculate your MAF heart rate and start tracking your aerobic training today.

Calculate Your MAF Heart Rate