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K3 Ultra – 43 km 2026 trail running route — Bulgaria · Smolyan Province

Bulgaria · Smolyan Province

Distance

43 km

Date

Entry fee

€62

€ / km

€1.44

K3 Ultra – 43 km

Elevation and Terrain

Total Meters

2,500m

D+/KM

58.1m/km

For context, the Tor des Géants 330 loop has 73 D+/km.

Avg Uphill Gradient

11.9%

Avg Downhill Gradient

-10.6%

Uphill gradient distribution

K3 Ultra – 43 km 43 km — uphill gradient distribution (GPX-derived, analysed 2026-05-02)
2–5%
3.5 km
5–10%
4.4 km
10–15%
3.2 km
15–20%
1.7 km
20%+
2.4 km

Route Profile

Analysed

Terrain breakdown

K3 Ultra – 43 km 43 km — terrain breakdown (GPX-derived, analysed 2026-05-02)
36.6%Uphill
17.2%Flat
46.2%Downhill

Terrain

Pre-Alpine

K3 Ultra – 43 km 43km Top Climbs

Top Climbs

K3 Ultra – 43 km 43 km — top climbs (GPX-derived, analysed 2026-05-02)
1

5.3 km · 259 m gain

starts km 6 · avg 4.9% · max 32.3%

2

4.9 km · 254 m gain

starts km 14 · avg 5.2% · max 36.3%

3

2.5 km · 229 m gain

starts km 2 · avg 9.2% · max 36.3%

Top descents

K3 Ultra – 43 km 43 km — top descents (GPX-derived, analysed 2026-05-02)
1

7.8 km · 500 m drop

starts km 34 · avg -6.4% · max -34.5%

2

9.3 km · 406 m drop

starts km 24 · avg -4.4% · max -26.5%

3

2.1 km · 129 m drop

starts km 4 · avg -6.0% · max -27.3%

K3 Ultra – 43 km 43km GPX

Getting to K3 Ultra – 43 km

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)

Remote location icon

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.

Last checked: Official Website →

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