Froggy Hollow 9

Clarksburg, United States • 7 Feb 2026

Event overview

The Froggy Hollow 5 & 9 presented by Altra is a timed trail ultra held on Saturday, February 7, 2026 at Little Bennett Campground, 23705 Frederick Road, Clarksburg, MD 20871. Event options include the 5-Hour Challenge, 5-Hour Relay Challenge, 9-Hour Challenge, 9-Hour Relay Challenge, and "More Than a 4-Miler." All participants complete a loop course of approximately 4.4 miles. A portion of event proceeds will benefit the Montgomery Parks Foundation.

Course, rules and logistics

The loop begins and ends at Loop E of Little Bennett Campground and uses a mix of named trails, including Acorn Hollow, Beaver Valley, Stoney Brook, W Piedmont, Tobacco Barn, Windy Ridge, Browning Run and Bennett Ridge. The route will be marked with pink surveyor flags stamped with a black CCR logo and pink flagging tape. Not permitted on the trail are littering, pacers, crew, dogs, bandits and strollers. All 9-Hour Challenge participants are required to carry a light until sunrise. 9-Hour participants may bring one drop bag and a chair to place in the designated Runner's Alley on Loop E; access to the bag is allowed after each loop and at race end. Self-crewing from the race village is allowed on a first-come basis and is not monitored by organizers.

Amenities, awards and packet pickup

Amenities listed for registrants include a stocked aid station in the race village, long-sleeve race apparel, product demos featuring Altra shoes, finisher medals, and a post-race chili bar with gluten free, vegetarian and vegan options. Top finishers receive a branded chili bowl and spoon. Solo awards include overall and age-group categories; relay awards go to top teams (maximum team size: 3). Packet pickup is scheduled at Charm City Run locations in Timonium and Frederick on the two days before race day and at the Little Bennett Camp Store on race day. Visit the organization's website for the most recent information.

Race information

4 mi
9-Hour Challenge
4 mi
More Than a 4-Miler
4 mi
5-Hour Challenge
4 mi
5-Hour Relay Challenge
4 mi
9-Hour Relay Challenge
Visit the organization's website for the most recent information.
Trail runs nearby

A trail 5 km and 10 km run through Manassas National Battlefield with chip timing, finisher medal, technical shirt, and a virtual race option. The event benefits the Manassas Battlefield Trust and starts and finishes at the Winery at Bull R..

Trail races in Columbia, Maryland along the Little and Middle Patuxent Rivers, offering 5K, 10K and half marathon distances with start and finish at the Guilford Pratt Truss Bridge. Registration includes a long sleeve shirt, finisher medal..

A club-based 10 miles race in Columbia, MD where runners score points for their RRCA club; awards are given by club and the event is part of the Maryland RRCA Grand Prix series.

Run a scenic 50 km trail at Hashawha Environmental Center near Westminster MD on Feb 28, 2026, featuring rolling hills, stream crossings and two big loops. Expect runnable single track, ample climbing and warm post race hospitality.