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25. mali kraški maraton

25. mali kraški maraton takes place on Sun, Mar 21, 2027 in Sežana, Slovenia. The main route is 21.1 km.

Date
Sun, Mar 21, 2027
Start
Sežana 🇸🇮
Distance
21.1 km
Climbing
100 m
Level
Open to all
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Your 21-week plan to 25. mali kraški maraton

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.

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The 25th Mali kraški maraton offers a half-marathon from Sežana through Lipica and across the Slovenian-Italian border, with a largely paved route and about 100 m of climbing.

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

1:50–2:15

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 25. mali kraški maraton is 21 weeks away. This is how a coach divides that time. The first phase starts now.

  1. 01Base9 weeks · Oct 26, 2026 – Dec 27, 2026

    Aerobic foundation: mostly steady endurance work that grows the aerobic engine and the durability the later phases stand on.

  2. 02Build6 weeks · Dec 28, 2026 – Feb 7, 2027

    Progressive overload: training load climbs in waves, with harder weeks stacked on the base and planned recovery weeks that let the gains land.

  3. 03Peak3 weeks · Feb 8, 2027 – Feb 28, 2027

    The hardest weeks of the plan: race-specific intensity at nearly full training load, sharpening exactly what this race asks for.

  4. 04Taper2 weeks · Mar 1, 2027 – Mar 14, 2027

    Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.

  5. 05Race week1 week · Mar 15, 2027 – Mar 21, 2027

    Openers, rest and logistics. The work is done; the job now is arriving fresh.

Get this plan built around your own fitness

Frequently asked questions

When is 25. mali kraški maraton?

25. mali kraški maraton takes place on Sun, Mar 21, 2027 in Sežana, Slovenia.

How long is 25. mali kraški maraton?

The main route is 21.1 km.

How much climbing does 25. mali kraški maraton have?

25. mali kraški maraton has 100 m of climbing.

Who is 25. mali kraški maraton for?

25. mali kraški maraton is open to all participants.

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