The Race Radar

Froggy Hollow 5 & 9 presented by Altra

Clarksburg, Maryland
Froggy Hollow 5 & 9 presented by Altra official race logo - running event in Clarksburg, Maryland
DATE:
TIME:
LOCATION:
Clarksburg, Maryland
PRICE:
Free
DISTANCES:
5 Events: 4.4 Miles, 4.4 Miles, 4.4 Miles, 4.4 Miles, 4.5 Miles

About Froggy Hollow 5 & 9 presented by Altra

Set in scenic Little Bennett Regional Park, the Froggy Hollow 5 & 9 presented by Altra is a timed trail ultra event with 5-Hour, 5-Hour Relay, 9-Hour, 9-Hour Relay, and "More Than a 4-Miler" options. This trail race offers the perfect setting for new and veteran trail runners to push their limits and achieve their new personal best. All participants will complete the 4.4-mile loop through Little Bennett Regional Park in Clarksburg, MD. We’ll have a fully stocked aid station on the course with a variety of food and hydration options.

We hope you will join us for this trail ultra brought to you by Charm City Run Events and Altra!

Not permitted on the trail: littering, pacers, crew, dogs, bandits, strollers.

Montgomery County Parks MNCPPC has the ultimate say over our event. In the event of extreme weather, the County can/will pull our event permit causing us to cancel the in-person event. Please read our entire weather policy for more information and details. Please note: THE 2026 RACE DOES NOT HAVE A RAIN DATE. 

Froggy Hollow 5 & 9 presented by AltraSet in scenic Little Bennett Regional Park, the Froggy Hollow 5 & 9 presented by Altra is a timed trail ultra event with 5-Hour, 5-Hour Relay, 9-Hour, 9-Hour Relay, and "More Than a 4-Miler" options. This trail race offers the perfect setting for new and veteran trail runners to push their limits and achieve their new personal best. All participants will complete the 4.4-mile loop through Little Bennett Regional Park in Clarksburg, MD. We’ll have a fully stocked aid station on the course with a variety of food and hydration options. We hope you will join us for this trail ultra brought to you by Charm City Run Events and Altra! Not permitted on the trail: littering, pacers, crew, dogs, bandits, strollers. Montgomery County Parks MNCPPC has the ultimate say over our event. In the event of extreme weather, the County can/will pull our event permit causing us to cancel the in-person event. Please read our entire weather policy for more information and details. Please note: THE 2026 RACE DOES NOT HAVE A RAIN DATE. 
Clarksburg, MD

Race Events & Distances

Choose from 5 race distances available for Froggy Hollow 5 & 9 presented by Altra in Clarksburg, MD. Registration includes timing, finisher medals, and post-race refreshments.

9-Hour Challenge

4.4 Miles
Distance
4.4 Miles
Start Time
Registration Fee
$0.00
https://schema.org/EventScheduledhttps://schema.org/OfflineEventAttendanceMode
Clarksburg, MD
ClarksburgMD
Froggy Hollow 5 & 9 presented by Altra Organizers

Frequently Asked Questions about 9-Hour Challenge

How long is the 9-Hour Challenge?
The 9-Hour Challenge covers 4.4 Miles.
What time does the 9-Hour Challenge start?
The 9-Hour Challenge starts at 6:00:00 AM.
How much does it cost to register for the 9-Hour Challenge?
Registration for the 9-Hour Challenge costs $0.00.
Where is the 9-Hour Challenge located?
The 9-Hour Challenge takes place in Clarksburg, MD.

9-Hour Relay Challenge

4.4 Miles
Distance
4.4 Miles
Start Time
Registration Fee
$0.00
https://schema.org/EventScheduledhttps://schema.org/OfflineEventAttendanceMode
Clarksburg, MD
ClarksburgMD
Froggy Hollow 5 & 9 presented by Altra Organizers

Frequently Asked Questions about 9-Hour Relay Challenge

How long is the 9-Hour Relay Challenge?
The 9-Hour Relay Challenge covers 4.4 Miles.
What time does the 9-Hour Relay Challenge start?
The 9-Hour Relay Challenge starts at 6:00:00 AM.
How much does it cost to register for the 9-Hour Relay Challenge?
Registration for the 9-Hour Relay Challenge costs $0.00.
Where is the 9-Hour Relay Challenge located?
The 9-Hour Relay Challenge takes place in Clarksburg, MD.

5-Hour Challenge

4.4 Miles
Distance
4.4 Miles
Start Time
Registration Fee
$0.00
https://schema.org/EventScheduledhttps://schema.org/OfflineEventAttendanceMode
Clarksburg, MD
ClarksburgMD
Froggy Hollow 5 & 9 presented by Altra Organizers

Frequently Asked Questions about 5-Hour Challenge

How long is the 5-Hour Challenge?
The 5-Hour Challenge covers 4.4 Miles.
What time does the 5-Hour Challenge start?
The 5-Hour Challenge starts at 8:00:00 AM.
How much does it cost to register for the 5-Hour Challenge?
Registration for the 5-Hour Challenge costs $0.00.
Where is the 5-Hour Challenge located?
The 5-Hour Challenge takes place in Clarksburg, MD.

5-Hour Relay Challenge

4.4 Miles
Distance
4.4 Miles
Start Time
Registration Fee
$0.00
https://schema.org/EventScheduledhttps://schema.org/OfflineEventAttendanceMode
Clarksburg, MD
ClarksburgMD
Froggy Hollow 5 & 9 presented by Altra Organizers

Frequently Asked Questions about 5-Hour Relay Challenge

How long is the 5-Hour Relay Challenge?
The 5-Hour Relay Challenge covers 4.4 Miles.
What time does the 5-Hour Relay Challenge start?
The 5-Hour Relay Challenge starts at 8:00:00 AM.
How much does it cost to register for the 5-Hour Relay Challenge?
Registration for the 5-Hour Relay Challenge costs $0.00.
Where is the 5-Hour Relay Challenge located?
The 5-Hour Relay Challenge takes place in Clarksburg, MD.

"More Than a 4-Miler"

4.5 Miles
Distance
4.5 Miles
Start Time
Registration Fee
$0.00
https://schema.org/EventScheduledhttps://schema.org/OfflineEventAttendanceMode
Clarksburg, MD
ClarksburgMD
Froggy Hollow 5 & 9 presented by Altra Organizers

Frequently Asked Questions about "More Than a 4-Miler"

How long is the "More Than a 4-Miler"?
The "More Than a 4-Miler" covers 4.5 Miles.
What time does the "More Than a 4-Miler" start?
The "More Than a 4-Miler" starts at 10:00:00 AM.
How much does it cost to register for the "More Than a 4-Miler"?
Registration for the "More Than a 4-Miler" costs $0.00.
Where is the "More Than a 4-Miler" located?
The "More Than a 4-Miler" takes place in Clarksburg, MD.

Registration Information

Registration is typically available online until race day (subject to capacity). Early registration is recommended for guaranteed entry and potential early bird pricing. Check with race organizers for specific event details and included amenities.

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