Trail running course through singletrack trails in Florida, USA
Croom Zoom

Croom Zoom — 50K

50K·988 ft gain·Brooksville, Florida
ultra50kforesttrailloopbeginner friendly

AI-generated image

Distance50K
Gain988 ft
DateJan 2026
Difficulty2/5

About This Race

The flagship 50K distance provides a comprehensive tour of Big Bear's extensive trail network through sustained forest running. This ultra serves as an accessible entry point for runners stepping up from shorter distances, featuring well-marked loop sections that allow for strategic pacing and aid station support. The course design emphasizes endurance over technical difficulty, making it suitable for first-time ultramarathoners.

The courses wind through the extensive trail system of Croom Park, utilizing well-defined paths that meander through oak hammocks characteristic of central Florida's interior landscape. The terrain offers classic Florida trail running with mostly natural surface trails protected by tree canopy, creating a more temperate microclimate than typical open Florida courses.

Runners experience varied forest environments within the Withlacoochee State Forest, with the course designed to highlight the area's natural beauty while maintaining clear navigation. The trail network provides distinct routes for each distance, ensuring the Croom Zoom offers a unique experience compared to other regional events like the Fools Run and John Holmes Run.

Elevation Profile

Elevation profile estimated from terrain data. Actual course may differ.

The course gains 988 ft over 31 miles, with the steepest section between mile 30–mile 30.

Location

Practical Info

Weather

Cool and comfortable January conditions in Florida, with temperatures typically in the 40s-60s Fahrenheit under protective tree cover.

Nearest Airport

TPA - Tampa International Airport

Accommodation

Located about an hour north of Tampa, with lodging options available in nearby Brooksville or the greater Tampa Bay area.

Best For

First-time ultra runnersFlorida trail runnersRunners seeking tree-covered courses

Notable Features

The race takes place within a World Wildlife Fund-recognized forest system, offering runners a chance to experience Florida's interior oak hammock ecosystem. The extensive tree canopy provides natural climate control, creating more comfortable running conditions than typical Florida races. With a 15-year history and multiple distance options, the event has established itself as a cornerstone of the regional trail running calendar.

Other Distances at This Event

10 Miles

328 ft gain

The courses wind through the extensive trail system of Croom Park, utilizing well-defined paths that meander through oak hammocks characteristic of central Florida's interior landscape. The terrain offers classic Florida trail running with mostly natural surface trails protected by tree canopy, creating a more temperate microclimate than typical open Florida courses. Runners experience varied forest environments within the Withlacoochee State Forest, with the course designed to highlight the area's natural beauty while maintaining clear navigation. The trail network provides distinct routes for each distance, ensuring the Croom Zoom offers a unique experience compared to other regional events like the Fools Run and John Holmes Run.

20 Miles

62 ft gain

The courses wind through the extensive trail system of Croom Park, utilizing well-defined paths that meander through oak hammocks characteristic of central Florida's interior landscape. The terrain offers classic Florida trail running with mostly natural surface trails protected by tree canopy, creating a more temperate microclimate than typical open Florida courses. Runners experience varied forest environments within the Withlacoochee State Forest, with the course designed to highlight the area's natural beauty while maintaining clear navigation. The trail network provides distinct routes for each distance, ensuring the Croom Zoom offers a unique experience compared to other regional events like the Fools Run and John Holmes Run.