
The Atomic Multisport Event by Personal Best Racing
Lenoir City, TN
Sat, Oct 10, 2026
In 26 days · Sat, Oct 10, 2026
Don't let race day sneak up
One email during race week. That's it.
Saturday, October 10th, 2026
1700 Melton Hill Dam Rd, Lenoir City TN
See race page
57–76°F · low rain risk
See last 10 years
On this date: rain 2 of the last 10 years
2025
53–73°F
dry
2024
54–74°F
dry
2023
51–77°F
dry
2022
42–69°F
dry
2021
63–80°F
dry
2020
62–67°F
rain
2019
62–81°F
dry
2018
69–85°F
rain
2017
70–84°F
dry
2016
53–75°F
dry
Best months to race in Tennessee →
About this race
Event Overview
The Atomic Multisport Event by Personal Best Racing will take place on October 10, 2026, at 1700 Melton Hill Dam Rd, Lenoir City, TN. For more details, visit the event page.
Location
- Race Site: TVA Melton Hill Dam area, directions below.
- Arrival Time: Arrive no later than 7 AM EST for ample time for parking, packet pickup, and preparations.
- Event Start: The event will start promptly at 8 AM EST.
- Race Walk: Friday at 6 PM at the race site.
Packet Pickup & Late Registration
- Picture ID: Required for packet pickup.
- Friday, Oct 9: 5 PM - 6:30 PM at race site.
- Saturday Morning: 6:30 AM to 7:30 AM at race site.
- Relay Teams: Must come together to pick up packets - no exceptions.
Weather Note
Important: Heavy fog may cause delays until it clears for swimmer safety.
Parking
- Location: Lower lots below the dam.
- Transition: Participants must walk uphill to transition area.
- Boat Access: No boat ramp access for racers.
- Drop-Off: Upper bath house lot for gear/bike drop-off, but no parking.
Race Information
Half Iron Info
- Upgrade Option: Half Iron participants can upgrade to a Hoodie Sweatshirt during registration.
- Swim Course: Wave start from dam end, two loop rectangle, final exit only at end of second loop.
- Bike Course: Modified from previous years for enhanced experience.
- Time Limits: Swim 1:15, bike 5:15 hours, run halfway point 7:15 for safety.
Sprint/Olympic Triathlon Info
- Sprint Triathlon: 500 meter Swim, 18.6 mile Bike, and 5k run.
- Olympic Triathlon: 1500 meter Swim, 40k Bike, and 10k run.
- Sprint Maps: Available on the event page.
- Olympic Maps: Includes two additional buoys for Oly swim.
Duathlon Info
- Format: Sprint Duathlon consisting of a 5k Run, 18.6 mile Bike, and a 5k Run.
- Maps: Available on the event page.
- Transition: Same as triathlon events.
Accommodations and Local Area
- Campground: Melton Hill Campground is across the road from the transition area with good availability in early October.
- Reservations: Link to campground reservations.
- Explore Oak Ridge: Check out local restaurants and activities.
- Insurance: Offered to participants during the registration process for event cancellation considerations.
Event Policies
- Sanction: All events are sanctioned by USA Triathlon.
- License: One-day license is $15 or annual membership for $50, required for participation.
- Refund Policy: Personal Best Racing has a NO REFUND policy: consider purchasing insurance.
- Event Shirts: Not guaranteed for participants registering within 2 weeks of the event.
Course map
Hotels for race weekend
Live prices near the start line, Oct 9 – 11, 2026.
Train with a club
Run clubs near Lenoir City to train with before race day.
Suggested Races
Organize this race?
Claim it free to manage your listing — and get it featured for free, while spots last.









