Maraton treh src takes place on Sat, May 15, 2027 in Radenci, Slovenia. The main route is 42.2 km.
- Date
- Sat, May 15, 2027
- Start
- Radenci 🇸🇮
- Distance
- 42.2 km
- Level
- Open to all
Your 32-week plan to Maraton treh src
The Base phase starts this week. Built around your fitness and adjusted every day as your form changes; attach the course and it prepares for the climbs too.
Build my planFree to start · No credit card
Maraton treh src is Slovenia's oldest road running event featuring a flat and scenic course starting and finishing in Radenci, crossing the border into Austria.
What this race demands
Maraton treh src requires pacing discipline and endurance to cover the 42.2 km distance over a flat road course.
Aerobic endurance
Completing the full marathon distance of 42.2 km places a sustained demand on the aerobic energy system and cardiovascular capacity.
Pacing control
The flat profile of the course allows for a steady rhythm, requiring the athlete to maintain discipline against early fatigue and maintain a consistent output.
A marathon lasting several hours requires a consistent intake of 60 to 90 grams of carbohydrates per hour to maintain blood glucose and spare muscle glycogen.
What would it take you?
Pick the level closest to yours for an estimate of finish time on this course and the training a solid preparation needs.
Estimated finish
3:45–4:30
Peak-week training
5–7 h/week
A model estimate from distance, climbing and level, not a promise. Conditions, drafting and pacing move it.
IntervalCoach turns those weekly hours into a concrete plan built around your actual fitness. Start with this race as your goal
Your road to race day
Race day at Maraton treh src is 32 weeks away. This is how a coach divides that time. The first phase starts now.
01Base20 weeks · Oct 4, 2026 – Feb 20, 2027
Aerobic foundation: mostly steady endurance work that grows the aerobic engine and the durability the later phases stand on.
02Build6 weeks · Feb 21, 2027 – Apr 3, 2027
Progressive overload: training load climbs in waves, with harder weeks stacked on the base and planned recovery weeks that let the gains land.
03Peak3 weeks · Apr 4, 2027 – Apr 24, 2027
The hardest weeks of the plan: race-specific intensity at nearly full training load, sharpening exactly what this race asks for.
04Taper2 weeks · Apr 25, 2027 – May 8, 2027
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
05Race week1 week · May 9, 2027 – May 15, 2027
Openers, rest and logistics. The work is done; the job now is arriving fresh.
Frequently asked questions
When is Maraton treh src?
Maraton treh src takes place on Sat, May 15, 2027 in Radenci, Slovenia.
How long is Maraton treh src?
The main route is 42.2 km.
What does Maraton treh src demand?
Maraton treh src requires pacing discipline and endurance to cover the 42.2 km distance over a flat road course.
Who is Maraton treh src for?
Maraton treh src is open to all participants.
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