Bulgaria · Blagoevgrad Province
Distance
160 km
Date
Entry fee
€98
€ / km
€0.61
Pirin Ultra 160km: Bulgaria's GPS-Only Hardrock Qualifier, Measured
Pirin Ultra is a 160-kilometre trail race held in September in Pirin National Park, Blagoevgrad Province, Bulgaria.
The Pirin Ultra course gains 11,000 metres of elevation — 68.75 metres per kilometre — placing it among the most elevation-dense 160km events in Europe. Entry costs €98 standard (€0.61 per kilometre), which for a race of its seriousness, is remarkably affordable.
The route is entirely unmarked. Runners carry the official GPX file and navigate across the high Pirin mountains, summiting Vihren (2,914m) and traversing exposed limestone ridges between Bansko and a chain of remote alpine huts.
The most dangerous section — km 45–55 — crosses marble ridge terrain with no water, no marking, and proximity to vertical rock walls, often in darkness for mid-pack runners. A 50-hour cutoff guarantees all finishers experience at least one full night on high-altitude terrain. Just 9.7% of the course is flat: the 160km is effectively split in half between climbing and descending.
Bansko is the start and finish; Sofia airport (SOF) is 2 hours 12 minutes away. First held in 2016, Pirin Ultra is a UTMB 100M qualifier and a Hardrock 100 qualifier. With 87 confirmed finishers in 2024, it is recommended for highly experienced mountain runners who are looking for a wild experience - equally comfortable with autonomous navigation and sustained exposure.
Elevation and Terrain
Total Meters
11,000m
D+/KM
68.8m/km
For context, the Tor des Géants 330 loop has 73 D+/km.
Avg Uphill Gradient
14.8%
Avg Downhill Gradient
-15.3%
Uphill gradient distribution
| 2–5% | 11.6 km | |
|---|---|---|
| 5–10% | 17.1 km | |
| 10–15% | 14.8 km | |
| 15–20% | 10.2 km | |
| 20%+ | 19.4 km |
Route Profile
AnalysedTerrain breakdown
| 46.0% | Uphill |
|---|---|
| 9.7% | Flat |
| 44.3% | Downhill |
Terrain
Pirin Ultra – 160 km 160km Top Climbs
Top Climbs
| 1 | 14.0 km · 1,673 m gain starts km 0 · avg 12.0% · max 66.9% |
|---|---|
| 2 | 9.8 km · 1,422 m gain starts km 24 · avg 14.5% · max 71.9% |
| 3 | 8.3 km · 1,386 m gain starts km 100 · avg 16.6% · max 48.8% |
Top descents
| 1 | 12.8 km · 1,668 m drop starts km 51 · avg -13.1% · max -58.4% |
|---|---|
| 2 | 13.0 km · 1,210 m drop starts km 14 · avg -9.3% · max -50.5% |
| 3 | 8.4 km · 1,148 m drop starts km 91 · avg -14.0% · max -41.1% |
Pirin Ultra 160km: The Bulgarian Race That Opens with One of Europe's Biggest Climbs
How hard is the Pirin Ultra 160km?
▼
Exceptionally hard, even by European ultra standards. The opening 14km climbs 1,673m from Bansko — the 15th largest single ascent of 385 measured races in the DTR database. A 1,668m descent at km 50 is the 11th largest single descent drop of 386 measured races. 19.35km of the course exceeds 20% gradient; just 9.7% is flat. The course is completely unmarked — GPS navigation only. The race has a 50-hour cutoff; 87 runners finished in 2024. A minimum of 4 ITRA points is required to enter.
Hardrock Qualifier, 12 ITRA Points, and UTMB 100M: Pirin Ultra 160km Credentials
Is the Pirin Ultra a Hardrock 100 qualifier?
▼
Yes. The Pirin Ultra 160km is a confirmed Hardrock 100 qualifier. It also awards 12 ITRA points (Mountain Level 12 / Finisher Level 10) and is part of the UTMB World Series at the 100M classification. Entry requires a minimum of 4 ITRA points.
Zero Markings, Mandatory GPS: Navigating the Pirin Ultra 160km Route
What does GPS-only navigation mean at the Pirin Ultra?
▼
The course has zero trail markings. Runners must download the official GPX file and carry a GPS device capable of navigating it independently. This applies to 160km of high-alpine terrain, including the km 45–55 Pirin Peak section — remote, heavily exposed, no water, scree, marble ridges, and proximity to vertical rock faces — navigated largely at night.
Affordable Hardrock Qualifier with a Mandatory Medical Check: Pirin Ultra 160km
How much does the Pirin Ultra 160km cost?
▼
€98 until July 24, 2026; €118 for late registration. At €0.61/km, it is among the most affordable Hardrock qualifiers and 12-ITRA-point races in the DTR database. A mandatory pre-race medical examination is required; runners deemed unfit receive a 100% refund.
Sofia Airport and Frequent Buses to Bansko: Pirin Ultra 160km Access
How do I get to the Pirin Ultra start in Bansko?
▼
Sofia Airport (SOF) is approximately 132 minutes by road from Bansko — frequent buses run on the Sofia–Bansko route. Bansko is a well-developed ski resort with strong hotel and apartment supply; book early for race weekend in September. Kit pickup and check-in is Thursday September 10, 13:00–20:00.
Pirin Ultra – 160 km 160km GPX
Getting to Pirin Ultra – 160 km
Nearest airport
Sofia (SOF)
Notes
Start: ~2–2.5 hrs by car/bus to Bansko / Public transport: frequent buses Sofia→Bansko; easy town access on foot / Accommodation: strong hotel/apartment supply in Bansko; book early for peak weekends
