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21K Challenge Kalampaka – Trikala «Thanasis Stamopoulos»

Trikala, Greece18th edition
Start 09:30In 152 days

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At a glance

21K Challenge Kalampaka – Trikala «Thanasis Stamopoulos» 2027 takes place on 21 March 2027 in Trikala, Greece. Distances: 21.098 km, 5 km, 1 km. Start at 09:30 from Piazza centrale di Kalampaka.

Date
Sunday, 21 March 2027
Location
Trikala, Greece
Start
Piazza centrale di Kalampaka
Finish
Piazza centrale di Trikala
Distances
  • Half marathon · 21.098 km · Competitive
  • 5 km · Competitive
  • Kids run · 1 km · Non-competitive
Start times
09:30
Registration
Registration open · Register now ↗
Edition
18th edition

Last updated: 19 October 2026

The race

The 21K Challenge Kalampaka – Trikala «Thanasis Stamopoulos» reaches its 18th edition on Sunday 21 March 2027. The half marathon starts at 9:30 from the central square of Kalampaka, at the foot of the Meteora rocks, and finishes in the central square of Trikala after crossing the Thessalian plain.

The course runs slightly downhill all the way, and the organisers describe it as the fastest half marathon in Greece. The time limit is 3 hours 30 minutes; the programme also includes a 5K and a 1 km kids' race.

Rules and requirements

Time limit3 h 30′
Official rules (PDF) ↗

Where it is

Trikala · Greece
StartPiazza centrale di KalampakaDirections ↗
FinishPiazza centrale di TrikalaDirections ↗
© OpenStreetMap · OpenFreeMap

Race-day weather

21 MAR 2027 · average of the last 10 years (2017–2026)
Changeable weather
Low / high4° / 15°At the start (09:30): 11°
Rain2.5 mmRain on 37% of days
Wind12 km/h
Sunrise06:35
Historical data: Open-Meteo
The forecast is available 16 days before the race.

On social media

Posts published by the organisers on their official profiles.

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