ROADRoad running
Lesvos Relay Race
Lesvos · North Aegean
320km · 5 September 2026Event / source link foundTheRun · discovery snapshot↗
Ultra races in Greece · 2026–2027
Road and trail ultras beyond marathon distance, with clear boundaries around confirmed and unconfirmed facts.
Ultra races
Data method →Upcoming races with a direct event source
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↗
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↗
ROADRoad running
Spartathlon 2026
Sparta · Peloponnese
246km · 26 September 2026Event / source link foundTheRun · discovery snapshot↗
TRAILTrail / Ultra
ROUT Classic 100 Miles
Chaintou · Eastern Macedonia and Thrace
182km · 16 October 2026Event / source link foundTheRun · discovery snapshot↗
TRAILTrail / Ultra
Terra Paranestia
Paranesti, Drama · Eastern Macedonia and Thrace
300km · 21 October 2026Event / source link foundTheRun · discovery snapshot↗
TRAILTrail / Ultra
Virgin Forest Trail
Paranesti · Eastern Macedonia and Thrace
10km / 25km / 48km / 82km / 162km · 22 October 2026 – 25 October 2026Confirmed at sourceParanesti VFT · official 2026 regulations↗
ROADRoad running
12th Run of the Immortals
Tripoli – Sparta – Kalamata · Peloponnese
142km · 24 October 2026Event / source link foundTheRun · discovery snapshot↗
ROADRoad running
6th King Leonidas Run
Tripoli – Sparta · Peloponnese
80km · 24 October 2026Event / source link foundTheRun · discovery snapshot↗
TRAILTrail / Ultra
South Olympus Forest Trail
Palaios Panteleimonas, Pieria · Central Macedonia
10km / 54km · 31 October 2026Event / source link foundTheRun · discovery snapshot↗
ROADRoad running
10th Authentic Phidippides Run
Athens – Sparta – Athens · Attica
485.3km / 524.9km · 19 November 2026Event / source link foundTheRun · discovery snapshot↗
ROADRoad running
24th Minoan Athlos
Faistos – Knosos, Irakleio · Crete
70 km / 3 × 23 km relay · 6 December 2026Confirmed at sourceCrete Marathon Runners · official 2026 event page↗
TRAILTrail / Ultra
Corfu Mountain Trail 2027
Kerkyra · Ionian Islands
12km / 24km / 44km / 103km · 8 May 2027Event / 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.