r/running • u/RockyRunsNYC • 9h ago
Discussion Started running at 39. For those who also started later — what happened to your fitness in years 2–4?
I started running about 15 months ago and just turned 40. Before that I was generally active, but I wasn't a runner.
I'm now training for my first marathon (NYC this November), running 4x/week and currently around 41–42 MPW during build weeks. I ran a ~1:45 half within my first year, and recently did a 17-mile long run with the final 7.5 miles around 8:19/mi. I'm targeting sub-4 for NYC.
One thing I've noticed through this training cycle is that my aerobic fitness seems to be developing faster than my body's durability. Cardiovascularly I can feel fantastic while my hips/back/feet/etc. occasionally remind me that I've only been doing this for 15 months.
It has me really curious about people who started running in their late 30s or 40s rather than people who've been running since high school or college:
What changed for you between year 1 and years 2–4?
Did you keep getting substantially faster? Did durability improve more than speed? Did there come a point where your body seemed to "catch up" with your aerobic fitness? And how much did increasing mileage versus simply spending more time consistently running contribute?
I'd especially love to hear what your weekly mileage and half/marathon times looked like in year 1 versus a few years later.
I'm obviously focused on getting through my first marathon healthy right now, but I'm fascinated by what another 2–3 years of consistent training might actually do.