Istria300 2027
Istria300 2027 starts on 2 October 2027 in Poreč, Croatia. There are three distances from 135 to 300 km. Format: Cycling marathon, on road, without a personal crew (unsupported). Registration is not open yet. All details come from the organiser, last checked on 5 October 2026.
3 distances from 135 to 300 km – figures apply to the selected distance.
Supplies along the way
Feed stations (feed zones) and basic bike service on the route, broom cars.
Distances
Classification
Not stated – please check with the organiser.
Not stated – please check with the organiser.
Not stated – please check with the organiser.
Registration
- Status
- Registration to follow
- Date
- 2 October 2027
What it’s about
Istria300 is a road cycling event from Poreč in Istria (Croatia): you only decide along the way whether to ride the 300, 209 or 135 km route on roads closed to traffic.
Route and format details based on the 2026 edition.
Past editions
Similar races
All races in the ultracycling calendar →
Source: www.istria300.com · last checked 5 Oct 2026 · start location exact