Bulgaria · Smolyan Province
K3 Ultra
Distance
63 km
Date
September 26, 2026
Entry fee
67 EUR
€ / km
€1.06
Borderland adventure in the Rhodopes: rugged ridges, remote trails, and a true small-town Bulgarian ultra.
Elevation and Terrain
Total Meters
2500m
D+/KM
39.68m/km
For context, the Tor des Géants 330 loop has 73 D+/km.
Avg Uphill Gradient
10.6%
Avg Downhill Gradient
-10.5%
Uphill gradient distribution
Route Profile
Analysed 2026-05-02Terrain breakdown
Terrain
Climbs
Top climbs
10.6 km · 660 m gain
starts km 0 · avg 6.2% · max 58.1%
4.2 km · 415 m gain
starts km 20 · avg 9.8% · max 59.2%
5.3 km · 260 m gain
starts km 25 · avg 4.9% · max 31.1%
Top descents
7.8 km · 500 m drop
starts km 54 · avg -6.4% · max -34.9%
5.9 km · 282 m drop
starts km 47 · avg -4.8% · max -24.4%
3.8 km · 231 m drop
starts km 16 · avg -6.0% · max -37.1%
Race files
Logistics
Nearest airport
Plovdiv (PDV)
Notes
Start: ~2.5–3.5 hrs drive to Zlatograd / Public transport: limited; bus to Smolyan/Zlatograd area + taxi / Accommodation: small-town hotels/guesthouses; book early (limited inventory)
FAR
It’ll possibly take 3+ hours from the closest large airport to arrive. Plan your adventure accordingly, take an extra day for those after-race beers or Curranz.
