Get stronger,run farther,stay injury‑free
Personal strength coaching designed for trail and ultra runners of every level — with a coach who's lived the journey himself.
No commitment. Cancel anytime.
The missing piece in most runners' training
Miles alone won't protect you. The runners who stay injury-free, hold their form deep into races, and keep improving year after year are the ones who invest in strength. This program is built specifically for the demands of trail and ultra running — not generic gym work.
Injury prevention
Build the resilience to handle big training blocks without breaking down.
Trail-specific strength
Movements that translate directly to uphills, descents, and technical terrain.
Better performance
More power, better running economy, and stronger finishes in your races.
Fits your schedule
Your strength plan is built around your running, not competing with it.
Train with Zeljko Radovic
Zeljko didn't grow up as a runner. His love for the mountains came from hiking with his grandparents in Bosnia, and he didn't discover running until his late twenties — as a way to push through personal insecurities. He failed his first race. Then came back and ran a 100k mountain ultra. That story of earned resilience is at the core of everything he coaches.
- NASM certified personal trainer. Spent years studying trail running performance — because he needed it for his own racing first.
- Based in Belgrade, with half his heart in the mountains of Bosnia.
"No heroic workouts. One session doesn't change much for better or worse. The mix of smart decisions over the years changes everything. The time to be a hero is on race day."
— Zeljko Radovic, coaching philosophyYour plan lives in the Vert.run strength app
Every plan Zeljko builds is delivered through the Vert.run strength coaching app — currently in beta. Join now and you'll be among the very first runners to test a strength training app designed from the ground up for trail and ultra runners.
Simple, personal, consistent
Onboarding call with Zeljko
Zeljko reaches out to schedule your first 1:1 call. You'll talk about your goals, your running history, and what your body needs most.
Your personalized strength plan
Zeljko builds a strength program tailored to your race calendar, training load, and the specific demands of trail running.
Weekly check-ins on Vert.run
Zeljko monitors your profile every week and reaches out via the Vert.run app chat to keep you on track and answer questions.
Monthly catch-up calls
Once a month, you and Zeljko jump on a call to review your progress and fine-tune the plan as you grow stronger.
One simple plan
Everything you need to build real strength as a trail runner — with a real coach behind every decision.
- Personalized strength training plan
- 1:1 onboarding call with Zeljko
- Weekly coach check-ins via Vert.run
- Monthly progress call
- Plan adjustments as your training evolves
- No commitment — cancel anytime
Ready to become a stronger runner?
Join trail and ultra runners at every level who are training smarter with Zeljko.
Start for $39/monthTrail running & Ultramarathon training plans by world class athletes
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Trail running & Ultramarathon training plans by world class athletes
