After running my first marathon in 3:17, I knew sub-3 was within reach—maybe next spring, or definitely the following autumn.

Next autumn, I went on to finish my second Berlin Marathon in 3:09 with even pacing, solid execution, and better overall race management. But shaving off those remaining nine minutes ended up taking three more attempts and a complete shift in how I approached training:

• Hamburg: 3:06

• Budapest: 3:04

• Riga: 2:58:45

Here is what it actually took to cross that line.

The Plateau of Running

At first, I assumed that simply stacking more kilometers would do the job. I was consistently running 60–80 km per week—following a structure of one speed workout, one long run, and standard easy base runs.

Yet, progress felt painfully slow. Seeing others online achieve similar goals with what appeared to be less effort left me feeling stuck. I began questioning my ability and whether age had something to do with it.

Looking back, my plateau came down to three major missteps:

• Under-fueling: I ate healthy, regular meals, but I had no real clarity on how much energy was going out versus how much food needed to come in.

• Over-exertion: I often went too hard on my interval sessions (more VO2 max than threshold or tempo) because I believed that's how progress is made—always pushing, always out of the comfort zone.

• Neglecting Strength: My strength routine was minimal at best—consisting only of occasional yoga and 10-to-20-minute Apple Fitness sessions.

The Turning Point: Muscular Endurance & HYROX

In late spring of 2025, I tried my first HYROX class to see what the hype was about, hoping to build the leg strength needed for the final 10k of a marathon. I left that first session sore in muscles I didn't know existed, but I knew it was the missing piece. I committed to incorporating it once a week.

The results showed up quickly, but at the Budapest Marathon in October 2025, I still fell just short of sub-3 when my legs started to fade after the 32 km mark.

That race confirmed an essential lesson: my main bottleneck wasn't aerobic capacity; it was muscular endurance.

Thus for the next training cycle, I adjusted my strategy:

• Targeted Strength: Kept one dedicated gym session for runners plus one HYROX session per week.

• Smarter Thresholds: Shifted from high-straining VO2 max efforts to controlled, specific run threshold intervals.

• Dialed-in Nutrition: Increased my protein intake and added core supplements (magnesium, creatine, omega-3).

Race Day: Executing at Riga

By the time I stood at the starting line of the Riga Marathon, sub-3 was no longer a stretch goal—it was the logical outcome of a sound strategy. I had recently set a 1:22 half-marathon PR in the Berlin Half-marathon and logged my largest 8-week training block ever (360 km and 400 km monthly totals).

On race morning, I felt completely calm and in control.

I tucked into the sub-3 pace group and stayed there, holding a comfortable pace and pulse. I waited patiently until the 38 km mark before making my move and breaking away from the group. Holding a 4:00 min/km pace at the end of a marathon I was at my limit, but it felt great finishing strong.

Crossing the line in 2:58:45 with a negative split wasn't just a physical win—it was proof that training smarter beats just training harder. And that I have finally cracked the code.

Key Takeaways

• Aerobic engine vs. muscular frame: If your lungs feel fine late in a race but your legs collapse, your limiter is strength and endurance, not cardio.

• Stop guessing your fueling: You cannot out-train chronic under-fueling and insufficient calorie days and weeks, especially during high-volume blocks.

• Patience pays off: Controlled pacing in the first 30 km is what allows you to attack the final 12 km of the marathon.