Knox-Xtreme Adventure Race
About this race
Are you ready to take on the Knox Xtreme?
Get ready for an intermediate-level adventure race that will challenge you to run, bike, paddle, navigate, and explore your way through South Knoxville and the Urban Wilderness.
The REV3Endurance Knox Xtreme Adventure Race combines some of the best outdoor terrain Knoxville has to offer into one exciting adventure. You’ll hit the trails, ride through some of South Knoxville’s premier mountain biking areas, paddle your way to checkpoints, and use your navigation skills to find hidden checkpoints scattered throughout the course.
You can race solo and push your personal limits, or grab a group of friends and form a team. Before the race, you’ll receive a map along with the basic rules and instructions you’ll need to plan your adventure.
Then, it’s up to you.
Choose your route. Make your plan. Decide how hard you want to push. Run. Bike. Paddle. Navigate. Find checkpoints. Earn points.
Your goal is simple: collect as many points as possible within the allotted race time. The individual or team with the most points at the finish wins.
But the Knox Xtreme is about more than competition. It’s an opportunity to experience South Knoxville and the Urban Wilderness in a completely different way — discovering trails, parks, waterways, and hidden corners you may never have explored before.
Bring your friends, test your skills, and get ready for an adventure you won’t soon forget.
Are you ready for the Knox Xtreme?
The course is waiting. The clock is ticking. Let the adventure begin!
Pick your distance
Running
Volunteer 10 Hour
Volunteer 5 Hour
Adventure race
KX 5 - Soloist
The 5-hour course covers approximately 20–30 miles of diverse terrain, including: 3+ mile of paddling 5+ miles of trekking 20+ miles of mountain biking and pavement You’ll explore some of South Knoxville’s best greenway and mountain biking areas as you search for checkpoints scattered throughout the region.
KX 5 - 2 Person
The 5-hour course covers approximately 20–30 miles of diverse terrain, including: 3+ mile of paddling 5+ miles of trekking 20+ miles of mountain biking and pavement You’ll explore some of South Knoxville’s best greenway and mountain biking areas as you search for checkpoints scattered throughout the region.
KX 5 - 3 Person
The 5-hour course covers approximately 20–30 miles of diverse terrain, including: 3+ mile of paddling 5+ miles of trekking 20+ miles of mountain biking and pavement You’ll explore some of South Knoxville’s best greenway and mountain biking areas as you search for checkpoints scattered throughout the region.
KX 5 - 4 Person
The 5-hour course covers approximately 20–30 miles of diverse terrain, including: 3+ mile of paddling 5+ miles of trekking 20+ miles of mountain biking and pavement You’ll explore some of South Knoxville’s best greenway and mountain biking areas as you search for checkpoints scattered throughout the region.
KX 10 - Soloist
Race Overview The REV3Endurance Knox Xtreme is a 10-hour, 50+ mile adventure race designed to test your endurance, teamwork, navigation, and grit across three core disciplines: 7+ miles of paddling 12+ miles of trekking 30+ miles of mountain and road biking Racers will cover 50+ miles of diverse terrain, navigating their way through greenways, roads, rivers, trails, and some of Knoxville’s premier outdoor spaces. Along the way, you’ll explore the incredible landscape of the Knoxville Urban Wilderness, connecting a series of challenging and scenic sections throughout South Knoxville. Expect to experience iconic locations including: Baker Creek Preserve Marie Myers Park William Hastie Nature Area Burnett Creek Easement Forks of the River Wildlife Area Meads Quarry Park Every section brings a new challenge, and every mile will test your ability to manage your time, navigate effectively, work as a team, and keep moving when the clock is ticking. 50+ miles. 10 hours. Three disciplines. One epic Knoxville adventure.
KX 10 - 2 Person
Race Overview The REV3Endurance Knox Xtreme is a 10-hour, 50+ mile adventure race designed to test your endurance, teamwork, navigation, and grit across three core disciplines: 7+ miles of paddling 12+ miles of trekking 30+ miles of mountain and road biking Racers will cover 50+ miles of diverse terrain, navigating their way through greenways, roads, rivers, trails, and some of Knoxville’s premier outdoor spaces. Along the way, you’ll explore the incredible landscape of the Knoxville Urban Wilderness, connecting a series of challenging and scenic sections throughout South Knoxville. Expect to experience iconic locations including: Baker Creek Preserve Marie Myers Park William Hastie Nature Area Burnett Creek Easement Forks of the River Wildlife Area Meads Quarry Park Every section brings a new challenge, and every mile will test your ability to manage your time, navigate effectively, work as a team, and keep moving when the clock is ticking. 50+ miles. 10 hours. Three disciplines. One epic Knoxville adventure.
KX 10 - 3 Person
Race Overview The REV3Endurance Knox Xtreme is a 10-hour, 50+ mile adventure race designed to test your endurance, teamwork, navigation, and grit across three core disciplines: 7+ miles of paddling 12+ miles of trekking 30+ miles of mountain and road biking Racers will cover 50+ miles of diverse terrain, navigating their way through greenways, roads, rivers, trails, and some of Knoxville’s premier outdoor spaces. Along the way, you’ll explore the incredible landscape of the Knoxville Urban Wilderness, connecting a series of challenging and scenic sections throughout South Knoxville. Expect to experience iconic locations including: Baker Creek Preserve Marie Myers Park William Hastie Nature Area Burnett Creek Easement Forks of the River Wildlife Area Meads Quarry Park Every section brings a new challenge, and every mile will test your ability to manage your time, navigate effectively, work as a team, and keep moving when the clock is ticking. 50+ miles. 10 hours. Three disciplines. One epic Knoxville adventure.
KX 10 - 4 Person
Race Overview The REV3Endurance Knox Xtreme is a 10-hour, 50+ mile adventure race designed to test your endurance, teamwork, navigation, and grit across three core disciplines: 7+ miles of paddling 12+ miles of trekking 30+ miles of mountain and road biking Racers will cover 50+ miles of diverse terrain, navigating their way through greenways, roads, rivers, trails, and some of Knoxville’s premier outdoor spaces. Along the way, you’ll explore the incredible landscape of the Knoxville Urban Wilderness, connecting a series of challenging and scenic sections throughout South Knoxville. Expect to experience iconic locations including: Baker Creek Preserve Marie Myers Park William Hastie Nature Area Burnett Creek Easement Forks of the River Wildlife Area Meads Quarry Park Every section brings a new challenge, and every mile will test your ability to manage your time, navigate effectively, work as a team, and keep moving when the clock is ticking. 50+ miles. 10 hours. Three disciplines. One epic Knoxville adventure.
Typical race-day weather
Based on 13 years of Open-Meteo archive data for this event's race dates in Knoxville, plus the 3 days either side.
The sun rises at 6:42 AM and sets at 8:22 PM local time (EDT) in Knoxville on May 1, 2027 — 13h 39m of daylight.
Course
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
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Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 91 Knoxville events
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