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Loud Thunder 50

Races

About

Welcome to the Loud Thunder 50, hosted by Sun Trail Running! Experience the rugged and picturesque trails at Loud Thunder Forest Preserve along the mighty Mississippi River with our 50-mile and 50K events. These races promise a challenging yet rewarding adventure amid breathtaking scenery. We aim to create a laid-back trail running environment, highlighting the exceptional features of the park while maintaining low costs and a focus on runners and trails. The event is headquartered at the Horse Corral Campground, with camping options available onsite and throughout the park. A key highlight is a campground located near the Riverview aid station, right along the race course. By joining us, you contribute to the park's future conservation efforts, enjoy custom racer gear, and partake in exclusive post-race amenities. Whether you're running or camping, immerse yourself in the vibrant outdoor community Loud Thunder offers.

Races

50K

Apr 17, 2027 (Sat) - 08:00

Distance

50 km

Terrain

Trail

Course

Multiple loops

Elevation gain

4,000 ft

Elevation loss

4,000 ft

Difficulty

Beginner

Cutoff time

12h

Course record (M)

3:24:08

Course record (F)

4:27:41

Entry fee

$85

50mi

Apr 17, 2027 (Sat) - 06:00

Distance

50 mi

Terrain

Trail

Course

Multiple loops

Elevation gain

6,600 ft

Elevation loss

6,600 ft

Difficulty

Intermediate

Cutoff time

14h

Course record (M)

7:14:41

Course record (F)

8:07:16

Entry fee

$100

All your race results in one place

Track your race performances from your personal race dashboard.

Weather history

Temperature

42°F / 61°F

Feels like

35°F / 56°F

Avg sunshine hours

9h 6m

Avg rainfall

0.12 in

Avg snowfall

-

Max wind speed

14.7 mph (Moderate breeze)

Sweat loss rate

Moderate

Trail conditions

Mostly tacky, some mud

Where to stay

Loud Thunder 50

Races