ROADRoad running
12th En Nikopolei Aktia Road Races
Archaia Nikopoli – Preveza · Epirus
1km / 5km / 10km · 5 September 2026Event / source link foundTheRun · discovery snapshot↗
Endurance races in Greece — September 2026
Browse source-linked endurance events in Greece during September 2026, ordered by date. Always confirm decision-critical details at the linked event source.
September 2026
Data method →Upcoming races with a direct event source
TRAILTrail / Ultra
13th Kalyvia Olympus Trail Running
Kalyvia Elassonas, Larisa · Thessaly
5km / 12km · 5 September 2026Event / source link foundTheRun · discovery snapshot↗
ROADRoad running
14th Korissos Sand Race
Vragkaniotika, Kerkyra · Ionian Islands
1.2 / 7 / 14 km · 5 September 2026Confirmed at sourceKorissos Sand Race · official event page↗
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↗
ROADRoad running
Lesvos Relay Race
Lesvos · North Aegean
320km · 5 September 2026Event / source link foundTheRun · discovery snapshot↗
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↗
CYCLINGBREVET
Brevet “Velvita 300K”
Velventos · Western Macedonia
300 km · 5 September 2026Confirmed at sourceBrevets Greece · πρόγραμμα 2026↗
ROADRoad running
Evrytania Everlap Endurance Series
Dimotiko Stadio Karpenisiou, Evrytania · Central Greece
3h / 6h / 12h / 24h · 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↗
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
Ano Viannos Road Race
Ano Viannos, Irakleio · Crete
1 / 5 / 14 km · 6 September 2026Event / source link foundΔήμος Βιάννου + Voltarakia · current 2026 notices↗
ROADNon-competitive memorial run
Marathon Battle Run 2026
Vranas, Marathonas · Attica
35 km · 6 September 2026Confirmed at sourceΤελμησσός Μαραθώνα · official 2026 event notice↗
ROADRoad running
Almopia Health Run
Loutra Pozar – Aridaia · Central Macedonia
1 / 5 / 21.1 km · 6 September 2026Event / source link foundΣΔΥ Θεσσαλονίκης · current 2026 event notice↗
CYCLINGRoad · Αντοχής
O GYROS TOU SMOLIKA
Konitsa · Epirus
130 km · +3350 m · 6 September 2026Confirmed at sourceEpirus Athletic Events · official 2026 proclamation↗
TRIATHLONAquathlon
Hellenic Aquathlon Championship Kavala 2026
Paralia Neas Irakleitsas, Kavala · Central Macedonia
Standard 2.5–1–2.5 km · Sprint 1.25–0.5–1.25 km · Super Sprint 1–0.4–1 km (run–swim–run) · 6 September 2026Confirmed at sourceΤριαθλητική Ομοσπονδία Ελλάδας · official 2026 proclamation↗
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↗
ROADRoad ultra / community run
Unity Race 2
Andritsaina – Archaia Olympia, Ileia · Western Greece
6 / 48 km · 6 September 2026Event / source link foundRunntrail · event-specific 2026 organizer notice↗
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↗
ROADRoad running
11th Asia Minor Catastrophe Memorial Race
Nea Kios, Argolida · Peloponnese
0.5km / 1km / 5.5km / 11km · 12 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.