Czech Republic · Hradec Králové Region (Krkonoše)
Distance
100 km
Date
Entry fee
CZK 1,540
€ / km
€0.63
New date pending
This race has already occurred. A new date for next year’s edition is pending.
Krakonošova 100 (K100) is a 100.1 km loop race through Krkonoše (Giant Mountains) National Park in Czech Republic, starting at 20:30 from Vrchlabí on June 19, 2026. The course covers 100.1 km with 3,914 m of gain (39 m/km), reaching the Sněžka summit (1,603 m, highest point in Czech Republic and Poland) at approximately km 33 — around 3 AM. Distance-weighted average gradients are 10.2% uphill and 9.7% downhill. The biggest descent drops 769 m over 6.5 km from Sněžka at 11.9% average — in complete darkness.
Entry was 1,540 CZK (€63 / €0.63/km); the race is sold out as of May 19, 2026 (participant transfer available via Sportchallenge.cz). UTMB Index 100K qualifier; Western States Endurance Run qualifier. Prague PRG 128 min. First held 1966 — 60th edition in 2026, one of the oldest long-distance mountain events in Central Europe. Capacity 500; 342 finishers 2025. 24-hour time limit. Named after Krakonoš, the legendary lord of the Giant Mountains.
Total Meters
3,914m
D+/KM
39.1m/km
For context, the Tor des Géants 330 loop has 73 D+/km.
Avg Uphill Gradient
10.2%
Avg Downhill Gradient
-9.7%
| 2–5% | 9.9 km | |
|---|---|---|
| 5–10% | 12.0 km | |
| 10–15% | 9.9 km | |
| 15–20% | 5.1 km | |
| 20%+ | 3.1 km |
| 39.8% | Uphill |
|---|---|
| 18.7% | Flat |
| 41.6% | Downhill |
| 1 | 6.9 km · 700 m gain starts km 72 · avg 10.1% · max 25.4% |
|---|---|
| 2 | 6.7 km · 533 m gain starts km 0 · avg 7.9% · max 22.8% |
| 3 | 4.4 km · 431 m gain starts km 26 · avg 9.9% · max 26.7% |
| 1 | 6.5 km · 769 m drop starts km 33 · avg -11.9% · max -34.2% |
|---|---|
| 2 | 4.4 km · 481 m drop starts km 42 · avg -11.1% · max -20.5% |
| 3 | 4.3 km · 433 m drop starts km 85 · avg -10.0% · max -24.6% |
Hard by 100K standards. The course covers 100.1km with 3,914m of gain (~39m/km), including the Sněžka summit (1,603m, highest point in Czech Republic and Poland) at approximately km 33, reached around 3 AM. The biggest descent drops 769m over 6.48km at 11.87% average — in complete darkness. Distance-weighted average gradients are 10.18% uphill and 9.70% downhill. 24-hour time limit; implied DNF rate 32–46%.
Yes — the K100 carries UTMB Index 100K qualifying status and appears on the official site as a Western States Endurance Run qualifying race. Verify current Western States status at wser.org before registering.
Yes — confirmed full as of May 19, 2026. Participant-to-participant transfer is available via the official Sportchallenge.cz registration system. The race consistently sells out its 500-place capacity well before June.
Prague (PRG) is the primary airport at approximately 128 minutes from Vrchlabí. Wrocław (WRO) and Dresden (DRS) are alternatives at approximately 2–3 hours. Train and bus connections to Vrchlabí are feasible; a last-mile taxi from the nearest station helps. Strong accommodation in nearby ski resorts (Špindlerův Mlýn, Pec pod Sněžkou) — book early in summer.
June 19–20, 2026. The Vlci (runners) wave starts at 20:30 and the Dálkoplazi (walkers) wave at 20:00, both from Náměstí Míru in Vrchlabí, Czech Republic. The race has a 24-hour time limit.
Nearest airport
Prague (PRG) / Wrocław (WRO) / Dresden (DRS)
Notes
Start: ~2.0–3.0 hrs; start is Vrchlabí / Public transport: train/bus feasible to Vrchlabí; last-mile taxi helpful / Accommodation: strong in ski resorts; book early (summer)
Ibiza Trail Maratón 48 km
Exclusive Discount - use ITMF-DISCOVERTRAIL26 CODE for 50% at checkout
