Finishing the Vienna City Marathon in under 4 hours taught me more about building products than any sprint retrospective.
The Parallels
When you train for a marathon, you learn something that product builders often forget: consistency beats intensity. You don’t run one 40km session. You run hundreds of short sessions, gradually building capacity.
Building products works the same way. Ship daily. Improve incrementally. The compound effect of small, consistent progress is staggering.
The Wall
Every marathoner hits “the wall” — that point around kilometer 30 where your body wants to stop. In product building, the wall shows up when early enthusiasm fades and you’re deep in the unglamorous work of fixing bugs, handling edge cases, and onboarding early users.
The lesson from running: when you hit the wall, you don’t stop. You slow down, adjust your form, and keep moving forward.
Pacing
The most common mistake in both marathons and startups is going out too fast. The runners who sprint the first 10km often don’t finish. The founders who try to build everything in the first month often burn out.
The Vienna City Marathon taught me to respect the pace. Start comfortable. Build gradually. Save energy for when it matters — the last 12km, or in product terms, the push from MVP to product-market fit.
Under Four Hours
Crossing the finish line in 3:57 wasn’t about speed. It was about discipline, planning, and the willingness to keep going when everything said stop.
Every product I’ve shipped since has benefited from that lesson.