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July 26, 2025

Mountain Lakes Triathlon

Guntersville, AL
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Sprint | Olympic
Swim
Lake
Bike
Flat
Run
Flat
Avg. Temp
80°F
Avg. Water
84°F
Mountain Lakes Triathlon

Flat, Fast & Fun!

Welcome to the 38th Annual Mountain Lakes Triathlon! Get ready to test your limits and enjoy a race that's as scenic as they come.

🏊 Swim Serenity: Begin with a swim in the tranquil, shallow waters of Lake Guntersville, setting the pace for the day.

🚴‍♂️ Cycling Beauty: Transition to the bike and circle the lake on a flat loop course, enjoying the stunning vistas.

🏃 Lakeside Run: Run along a lakeside greenway, ideal for pushing through the final leg of the triathlon.

🎉 Celebrate Together: Crossing the finish line marks the start of celebrations with a pool party, local food, and a community that honors every participant's achievement.

Whether you're here to compete or to complete, Guntersville's charm and the camaraderie of fellow athletes will make this event a highlight of your racing calendar. Ready for the challenge? Join us at one of the country's longest-running triathlons, the Mountain Lakes Triathlon.
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Event Location
1500 Sunset Dr, Guntersville, AL 35976
The race staging is at the Guntersville Parks and Recreation Center with transition in the Senior Center parking area.

Course Maps

Swim Course

Sprint: 600yd
Olympic: 1,200yd
Swim Course Map
Swim Course Info

The swim will be conducted in a time-trial fashion. Race numbers are assigned by estimated swim time. A racer will enter the water approximately every 3 seconds. Course buoys are placed to keep racers to stay on course.

Register by the Wednesday night before the race to get a spot in the swim order. All registrants after that time will have the upper numbers and starting at the rear.
Determining Swim Time
Pace Chart
Use US Masters Swimming pace chart as needed.
Wetsuit Rules
USAT Article 4:4
Each age group participant shall be permitted to wear a wet suit without penalty in any event sanctioned by USA Triathlon up to and including a water temperature of 78 degrees Fahrenheit.

When the water temperature is greater than 78 degrees, but less than 84 degrees Fahrenheit, age group participants may wear a wet suit at their own discretion, provided however that participants who wear a wet suit within this temperature range shall not be eligible for prizes or awards.

Bike Course

Sprint: 16.2mi
Olympic: 32.4mi
Bike Course Map
Bike Course Info
Map My Ride
The race transition area is organized based on your assigned race number.  

Each bike rack ROW is also marked with a sign to help you find your row as you complete your swim-to-bike and bike-to-run transitions.

The bike course is a mix of residential and rural roads, with fun flat sections and a few small rollers.

Olympic racers complete two loops.

For both distances, there will be a BIKE MOUNT / DISMOUNT LINE. You will walk your bike from your space on the transition bike rack to the BIKE MOUNT line to begin the bike segment. At the finish of your bike segment, you will DISMOUNT at the same line and walk your bike back to your space on the transition bike rack.

Run Course

Sprint: 3 mile
Olympic: 6 mile
Run Course Map
Run Course Info
Map My Run
The run course is on a paved running trail that winds along Lake Guntersville.

This is one flat and fast beauty of a run course!

Please stay to your left on the running trail throughout the course to reduce congestion.

Sprint racers complete one out-and-back loop while Olympic racers complete two loops.

Ways You Can Race

TRIATHLON
TRIATHLON

Swim, Bike, and Run. Test yourself against the full course.

SWIM-BIKE
SWIM-BIKE

Running too tough on the knees or just not what you're into? No worries, compete in just the Swim and Bike.

BIKE-RUN
BIKE-RUN

Water not your thing? Skip the swim and compete in only the Bike and Run.

RELAY
RELAY

Tri Together! Race with your friends or family in either 2 or 3 person relay teams.

Event Schedule

FRIDAY
4:00 pm - 6:00 pm: Registration & packet pick-up
* NO OVERNIGHT BIKE CHECK-IN *

4:30 pm:
Race Overview followed by Q&A
SATURDAY
5:30 am - 6:30 am: Registration & Packet Pick Up

6:45 am: Transition Closes. Bikes must be in the transition area

7:00 am:
Olympic Swim Start

7:30 am: Sprint Swim Start

9:30 am:
Estimated time for Sprint Distance Awards

10:30 am: Estimated time for Olympic Distance Awards

11:30 am: All participants must be finished to guarantee police and volunteer support*

Bikes may be removed from the transition area after the last biker has returned, or at the discretion of the transition area staff.

*Upon finishing the bike, please ensure you can finish the run by 11:30am.

Event Sponsors