Mamba 100

Event Details

The Mamba 100 will take place on November 7-8, 2025, with various race distances to challenge participants. Whether you are aiming for a new personal record or completing your first ultramarathon, this event caters to all levels.

Race Distances:

• 100 Miler: Starts at 7 AM on November 7. Must finish within 34 hours to qualify for the Western States 100.
• 100K: Night start at 7 PM on November 7. Experience the trails under the stars!
• 50K: Begins at 7 AM on November 8.
• 25K: Starts at 9 AM on November 8.

Location:

100 S. Walnut Bend Rd, Memphis, TN

Registration:

Registration opens on Black Friday, November 29th, at 1 PM. Ensure you register before the closing date on November 3, 2025.

Packet Pickup:

Packet pickup will occur on Thursday, November 6, 2025, with time and location to be announced.

Awards:

Top 3 male and female finishers in each distance will receive awards, buckles, or medals.

Sponsorship Opportunities:

If you're interested in sponsoring the race, please contact [email protected].

Amenities:

The event offers fully stocked aid stations, on-site support, and a vibrant atmosphere at the Start/Finish line.

For complete details and updates, stay connected through our social media channels.