TRAILTrail / Ultra
13th Kalyvia Olympus Trail Running
Kalyvia Elassonas, Larisa · Thessaly
5km / 12km · 5 September 2026Event / source link foundTheRun · discovery snapshot↗
Endurance races in Thessaly
Find upcoming road, trail, triathlon, cycling and swimming events in Thessaly, Greece. Each listing shows its source and checked date.
Thessaly
Data method →Upcoming races with a direct event source
TRIATHLONAquathlon
Alonissos Challenge 2026 · Aquathlon 65
Chrysi Milia Beach, Alonissos · Thessaly
1.5 km swim · 5 km run · 5 September 2026Confirmed at sourceAlonissos Challenge · official event page↗
OPEN WATEROpen-water swimming
Alonissos Challenge 2026 · Golden & Silver Swim
Chrysi Milia Beach, Alonissos · Thessaly
0.5 / 1 mile · 5 September 2026Confirmed at sourceAlonissos Challenge · official event page↗
OPEN WATERKids open-water swimming · primary-school ages
Alonissos Challenge 2026 · Junior Swim Challenge
Chrysi Milia Beach, Alonissos · Thessaly
150 m · 5 September 2026Confirmed at sourceAlonissos Challenge · official event page↗
ROADRoad running
19th Alonissos Challenge
Patitiri, Alonnisos · Thessaly
10 / 20 km · kids 0.6 / 2 km · 6 September 2026Confirmed at sourceAlonissos Challenge · official event page↗
ROADRoad running
8th Kala Nera Run
Kala Nera · Thessaly
0.5 / 5 / 10 km · 13 September 2026Event / source link foundAthenian Runners Club · event-specific 2026 notice↗
CYCLINGBREVET
Brevet “Dyo Limnon”
Karditsa · Thessaly
200 km · 19 September 2026Confirmed at sourceBrevets Greece · πρόγραμμα 2026↗
TRAILTrail / Ultra
Pelion Trail Race
Pilio · Thessaly
30km / 15km · 20 September 2026Event / source link foundTheRun · discovery snapshot↗
ROADRoad running
Run Greece 2026 – Trikala
Trikala · Thessaly
5km / 10km · 20 September 2026Event / source link foundTheRun · discovery snapshot↗
ROADRoad running
1st Volos Full Moon Run
Volos, Magnisia · Thessaly
0.5km / 5km · 26 September 2026Event / source link foundTheRun · discovery snapshot↗
ROADRoad running
12th Achilleios Athlos
Farsala, Larisa · Thessaly
2.4km / 4km / 5.2km / 21.1km · 27 September 2026Event / source link foundTheRun · discovery snapshot↗
OPEN WATEROpen-water swimming
3rd GO MILINA – ALATAS 2026
Milina · Thessaly
1.5 / 3 / 8.5 km · 27 September 2026Confirmed at sourceGO Events · event page↗
ROADRoad running
10th Almyros Anniversary Road Race – Zerelia Twin Meteorite Lakes
Almyros, Magnisia · Thessaly
2.6km / 5km / 10km / 21km · 4 October 2026Event / source link foundTheRun · discovery snapshot↗
TRAILTrail / Ultra
Gomfoi Trail
Gomfoi, Trikala · Thessaly
7km / 19km · 4 October 2026Event / source link foundTheRun · discovery snapshot↗
TRAILTrail / Ultra
Iraklis Goritsa Trail
Goritsa, Volos · Thessaly
5km / 16km · 11 October 2026Event / source link foundTheRun · discovery snapshot↗
ROADRoad running
6th Volos Night Run
Paralia Volou, Magnisia · Thessaly
1km / 5km / 10km · 24 October 2026Event / source link foundTheRun · discovery snapshot↗
ROADRoad running
18th Kalambaka-Trikala Half Marathon
Kalampaka – Trikala · Thessaly
1km / 2.5km / 5km / 21.1km · 21 March 2027Event / source link foundTheRun · discovery snapshot↗
Verification boundary
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Counts include upcoming listings with a direct event or authoritative source. Registration, routes, prices and last-minute changes must still be checked at that linked source.