Ultrabug is an immersive multi-day ultra marathon nestled within Romania’s majestic Carpathian Mountains. This fully supported race invites runners to explore scenic trails that wind through lush forests, meander across mineral water streams, and ascend towering mountain peaks offering panoramic vistas of the surrounding landscape. The event catrers to a diverse range of participants, from seasoned ultrarunners seeking an epic challenge to first-time adventurers looking for a memorable experience in nature. Over three days, runners tackle the 100km main event, which weaves through remote villages where local traditions and warm hospitality are on full display. Alongside this flagship race, Ultrabug offers several shorter options: Marathon XFun (42km), Ultra XFun (56km), a Fun Run for those looking to dip their toes into the ultramarathon world, and Minibug—a perfect introduction for runners new to multi-day events. The routes are designed with varying terrain in mind, from gentle forest paths that wind through working farmland to steep ascents leading up rugged mountain trails. Each day presents unique challenges as well as moments of tranquility where participants can connect deeply with the natural beauty surrounding them and immerse themselves in the local culture. After each stage, runners are invited to unwind at the festive after party, a lively celebration that brings together all participants to share their stories, forge new friendships, and honor achievements made throughout the event. Ultrabug is more than just a race; it’s an adventure into Romania’s heartland, where nature, tradition, and community come alive. Join us for this extraordinary journey through some of Europe's most breathtaking landscapes.
Races Offered
Ultra XFun
May 29, 2026
straighten
Distance —
58K
terrain
Type —
Running
timer
08:00
100 km
May 29, 2026
straighten
Distance —
100K
terrain
Type —
Running
timer
09:00
Marathon XFun
May 29, 2026
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Distance —
50K
terrain
Type —
Running
timer
09:00
Minibug
May 29, 2026
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Distance —
35K
terrain
Type —
Running
timer
09:00
Fun Run
May 31, 2026
straighten
Distance —
8K
terrain
Type —
Running
timer
10:00
100 km 3-stage trail race
May 28, 2027
straighten
Distance —
100K
terrain
Type —
Running
timer
278 days remaining
sell
€66.00
Bootsy Fun Race
May 28, 2027
straighten
Distance —
8K
terrain
Type —
Running
timer
278 days remaining
sell
€25.00
MiniBug 35 km 3-stage trail race
May 28, 2027
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Distance —
35K
terrain
Type —
Running
timer
278 days remaining
sell
€49.00
XFun 42+8 km two trail races
May 28, 2027
straighten
Distance —
50K
terrain
Type —
Running
timer
278 days remaining
sell
€49.00
XFun 50+8 km two trail races
May 28, 2027
straighten
Distance —
58K
terrain
Type —
Running
timer
278 days remaining
sell
€49.00
Weather History
These values represent the 3-year monthly averages for May in Fundu Moldovei.
thermostatTemperature
6.1° / 16.0°
wb_sunnyFeels like
3.7° / 13.1°
light_mode
Avg sunshine hours
10h 7m
water_drop
Avg rainfall
2.8 mm
ac_unit
Avg snowfall
0.2 cm
air
Avg wind speed
8.9 km/h (Light breeze)
opacity
Sweat loss rate
Low
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Moderate (4.2)
humidity_mid
Humidity
73.9%
wb_twilight
Sunrise
05:40
nightlight
Sunset
20:48
About Fundu Moldovei
Learn more about the host city, Fundu Moldovei.
Fundu Moldovei is a commune located in Suceava County, Bukovina, northeastern Romania. It is composed of ten villages, namely: Botuș, Botușel, Braniștea, Colacu, Delnița, Deluț, Fundu Moldovei, Obcina Ursului, Plai, and Smida Ungurenilor.
