Pirin Ultra invites trail runners and skyrunners alike to explore the breathtaking landscapes of Bulgaria's Pirin National Park. Nestled within UNESCO World Heritage-listed territory, this mountainous terrain offers an unparalleled setting for endurance racing, with its dramatic vistas and challenging ascents making it a favorite among international competitors. Since its inception in September 2016, Pirin Ultra has quickly established itself as one of the premier ultramarathon events on the global skyrunning circuit. In 2019, the race expanded to include four distinct routes catering to runners with varying levels of experience and endurance. The longest route, Route A, spans an impressive 160 kilometers through some of Pirin's most rugged terrain, offering a true test for seasoned ultramarathoners. The second option is the classic 66K course, which has been part of the Skyrunner® World Series since its inception and continues to attract top talent from around the world. This route features an exhilarating mix of steep ascents and technical descents that showcase Pirin's natural beauty while pushing runners to their limits. For those seeking a more moderate challenge, Route C offers 38 kilometers of scenic trails known as "Pirin Extreme," providing breathtaking views without sacrificing accessibility for experienced trail runners. The newest addition is the shorter but no less demanding 25K route (Route D), designed specifically for newcomers or participants looking to acclimate themselves with Pirin's majestic mountain environment. Scheduled from September 11th to 13th, 2026, this year’s edition of Pirin Ultra promises an unforgettable experience. Participants will traverse through pristine alpine meadows and dense forests, encountering steep climbs and rocky paths that highlight the region's unique geological features. With its rich cultural heritage and stunning natural scenery, Pirin National Park serves as a perfect backdrop for runners to push their limits while immersing themselves in nature. The event not only celebrates athletic achievement but also emphasizes environmental stewardship and community engagement, making it an integral part of the local culture. As participants navigate through this enchanting landscape, they will witness firsthand why Pirin National Park is recognized as a UNESCO World Heritage site – its diverse ecosystems and breathtaking vistas make for an unforgettable race experience. Whether you're aiming to conquer the full 160K route or simply looking to explore Pirin's trails on one of the shorter courses, this event offers something special for every runner. Join us in September 2026 as we celebrate another year of pushing boundaries and embracing the beauty of Bulgaria’s natural wonders.
Races Offered
160K
Sep 13, 2026
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Distance —
160K
terrain
Type —
Running
timer
75 days remaining
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€98.00
25K
Sep 13, 2026
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Distance —
25K
terrain
Type —
Running
timer
75 days remaining
sell
€53.00
38K
Sep 13, 2026
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Distance —
38K
terrain
Type —
Running
timer
75 days remaining
sell
€68.00
68K
Sep 13, 2026
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Distance —
68K
terrain
Type —
Running
timer
75 days remaining
sell
€78.00
Weather History
These values represent the 3-year monthly averages for September in Bansko.
thermostatTemperature
11.8° / 22.9°
wb_sunnyFeels like
10.8° / 21.5°
light_mode
Avg sunshine hours
10h 44m
water_drop
Avg rainfall
1.9 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
4.2 km/h (Light breeze)
opacity
Sweat loss rate
Moderate
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Moderate (5.0)
humidity_mid
Humidity
65.2%
wb_twilight
Sunrise
07:06
nightlight
Sunset
19:34
About Bansko
Learn more about the host city, Bansko.
Bansko is a mountain and ski resort in Southwest Bulgaria, under the slopes of the Pirin Mountains. It is the largest ski resort in the Balkans.