TRAILTrail / Ultra
13th Kalyvia Olympus Trail Running
Kalyvia Elassonas, Larisa · Thessaly
5km / 12km · 5 September 2026Event / source link foundTheRun · discovery snapshot↗
Trail and mountain races in Greece
Trail, mountain, vertical and ultra races with a visible source and verification status.
Trail and mountain races
Data method →Upcoming races with a direct event source
TRAILTrail / Ultra
36th Olympus Mountaineering Marathon
Litochoro · Central Macedonia
5 / 15 / 41.91 km · 5 September 2026 – 6 September 2026Event / source link foundRun Events · event-specific registration page↗
TRAILTrail / Ultra
6th Lela Karagianni Memorial Races
Limni, Evvoia · Central Greece
0.7km / 1.7km / 5.5km / 7km / 17.5km · 5 September 2026Event / source link foundTheRun · discovery snapshot↗
TRAILTrail / Ultra
Vertical Silas Adventure
Stavros Amygdaleona, Kavala · Eastern Macedonia and Thrace
1.7km · 5 September 2026Event / source link foundTheRun · discovery snapshot↗
TRAILTrail / Ultra
Bobokos Trail 22
Elikonas, Livadeia, Voiotia · Central Greece
12.8 km · +625 m · 6 September 2026Event / source link foundRunntrail · event-specific 2026 organizer notice↗
TRAILTrail / road festival
Konitsa Race 3
Konitsa, Ioannina · Epirus
1 / 5 / 14 km · up to +670 m · 6 September 2026Confirmed at sourceEpirus Athletic Events · official 2026 proclamation↗
TRAILMountain running
Voio Race Series 2026 – Bourinos Race
Mpourinos, Kozani · Western Macedonia
10 / 19 km · 6 September 2026Event / source link foundRunner Magazine · event-specific 2026 organizer notice↗
TRAILTrail / Ultra
Hercules Series – Oiti Ultra Trail (OUT)
Ypati, Fthiotida · Central Greece
101.7 km · +5,265 m · 11 September 2026 – 12 September 2026Confirmed at sourceOiti Ultra Trail · official event page↗
TRAILTrail / Ultra
8th Naoussa Vermio Trail & 4th 6 Peaks
Naousa · Central Macedonia
6 / 10 / 24.4 / 44 km · 12 September 2026 – 13 September 2026Confirmed at sourceNaousa Vermio Trail · official event page↗
TRAILTrail / Ultra
Atlas Night Trail
Malakasa · Attica
6km / 11km · 12 September 2026Event / source link foundTheRun · discovery snapshot↗
TRAILTrail / Ultra
Corfu Old Town Trail
Kerkyra · Ionian Islands
7km / 14km · 12 September 2026Event / source link foundTheRun · discovery snapshot↗
TRAILTrail / Ultra
Syros Trail Challenge
Ermoupoli, Syros · South Aegean
3km / 10km · 12 September 2026Event / source link foundTheRun · discovery snapshot↗
TRAILTrail / Ultra
Perama Trail
Perama, Attiki · Attica
1km / 3.3km / 10km · 19 September 2026Event / source link foundTheRun · discovery snapshot↗
TRAILTrail / Ultra
10th Lailias Mountain Running
Serres · Central Macedonia
6 / 21 km · +200 / +1,350 m · 20 September 2026Confirmed at sourceLailias Mountain Running · official event page↗
TRAILTrail / Ultra
4th Mountain Half Marathon The Road of Hope
Makistos, Ileia · Western Greece
1km / 10km / 21km · 20 September 2026Event / source link foundTheRun · discovery snapshot↗
TRAILTrail / Ultra
9th Sitia Geopark Trail
Kato Zakros, Sitia, Lasithi · Crete
0.3km / 0.5km / 1km / 3km / 6km / 24km · 20 September 2026Event / source link foundTheRun · discovery snapshot↗
TRAILTrail / Ultra
Arachova Trail
Arachova · Central Greece
1km / 5km / 11km / 21km · 20 September 2026Event / source link foundTheRun · discovery snapshot↗
TRAILTrail / Ultra
Dadia Trail Run
Dadia, Soufli · Eastern Macedonia and Thrace
6km / 10km / 23km · 20 September 2026Event / source link foundTheRun · discovery snapshot↗
TRAILTrail / Ultra
Kalamata Mountain Run
Kalamata · Peloponnese
9km / 25km · 20 September 2026Event / source link foundTheRun · discovery snapshot↗
TRAILTrail / Ultra
Lesvos Trail
Lepetymnos, Lesvos · North Aegean
6km / 15km · 20 September 2026Event / source link foundTheRun · discovery snapshot↗
TRAILTrail / Ultra
Pelion Trail Race
Pilio · Thessaly
30km / 15km · 20 September 2026Event / source link foundTheRun · discovery snapshot↗
TRAILTrail / Ultra
Thessaloniki Stage Run
Seich Sou, Thessaloniki · Central Macedonia
15km / 25km / 40km · 25 September 2026Event / source link foundTheRun · discovery snapshot↗
TRAILTrail / Ultra
Folegandros Challenge Run
Folegandros · South Aegean
5km / 10km / 21km · 26 September 2026Event / source link foundTheRun · discovery snapshot↗
TRAILTrail / Ultra
1st On the Trails of Kallithea Race
Kallithea, Drama · Eastern Macedonia and Thrace
1km / 5km / 12km · 27 September 2026Event / source link foundTheRun · discovery snapshot↗
Verification boundary
Discover here. Confirm with the organiser.
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.