On December 20, 2026, the picturesque town of Nieuwehorne will host its 13th annual Sint Thomas Trailrun, an exhilarating race through some of Belgium's most stunning natural landscapes. Participants can choose from a variety of distances ranging from a challenging 38 km to shorter courses like the family-friendly 5 km and kids' trails for younger runners. The trail winds through serene countryside, including areas around Kiekenberg and Ketliker Skar, with each route offering unique terrain and breathtaking scenery. The race starts and finishes at the local sports hall, where participants will find a vibrant atmosphere filled with fellow runners eager to explore these beautiful paths. This year's event features updated routes and new distances for all ages, ensuring there is something for every level of runner. For those opting for longer runs, prepare for an adventure through diverse landscapes that include fields, forests, and challenging trails. The shorter courses provide a perfect introduction to trail running with less demanding but equally scenic routes. Registration closes on December 13, 2026, or when the maximum number of participants is reached, so early sign-ups are recommended to secure your spot in this unforgettable race through nature. Participants should note that there will be no prize ceremony, but timing chips will track everyone's performance. The event also includes a charitable donation option for runners who wish to contribute to local environmental organizations. Whether you're an experienced trail runner or new to the sport, the Sint Thomas Trailrun offers a memorable way to explore the natural beauty of Nieuwehorne and its surroundings.
Races Offered
10 km - 12.30 uur
Dec 20, 2026
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10K
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76 days remaining
10 km - 12.45 uur
Dec 20, 2026
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10K
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16 km - 13:00 uur
Dec 20, 2026
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16K
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76 days remaining
16 km - 13:15 uur
Dec 20, 2026
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16K
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76 days remaining
2 km - 12.15 uur
Dec 20, 2026
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2K
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76 days remaining
22 km - 11:15uur
Dec 20, 2026
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22K
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76 days remaining
22 km - 11:30uur
Dec 20, 2026
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22K
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76 days remaining
3 km - 12.00 uur
Dec 20, 2026
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3K
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76 days remaining
38 km - 10.15uur
Dec 20, 2026
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38K
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76 days remaining
5 km - 13:30
Dec 20, 2026
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Distance —
5K
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76 days remaining
5 km - 13:45
Dec 20, 2026
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5K
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76 days remaining
Weather History
These values represent the 3-year monthly averages for December in Nieuwehorne.
thermostatTemperature
3.5° / 7.8°
wb_sunnyFeels like
-1.3° / 3.3°
light_mode
Avg sunshine hours
2h 14m
water_drop
Avg rainfall
3.0 mm
ac_unit
Avg snowfall
0.1 cm
air
Avg wind speed
18.4 km/h (Gentle breeze)
opacity
Sweat loss rate
Low
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Low (1.4)
humidity_mid
Humidity
87.9%
wb_twilight
Sunrise
09:40
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Sunset
17:21
Hotels & Places to Stay
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