Course
The Preserve 2026 Course Maps
Long Sprint Bike Course. Mid Sprint Bike Course. Run Course - 2 Loops for Long; 1 Loop for Mid & Tadpole.

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Official race website199 Broadberry Ave, Oak Ridge, TN 37830
The pin marks the address the race lists, which is usually the start. Course maps are the organizers' own.
Aggregated from official results (Personal Best Racing) for Atomic Kids Fall Triathlons. Individual finisher names are not stored here.
At the 2025 Triathlon Mid Sprint, the fastest tenth finished in 15:37 or better, the top quarter in 17:22, and half the field in 18:45; the last tenth came in after 26:35.
At the 2025 Triathlon Long Sprint, the fastest tenth finished in 22:11 or better, the top quarter in 24:43, and half the field in 26:59; the last tenth came in after 35:12.
At the 2025 Tadpole Triathlon, the fastest tenth finished in 11:28 or better, the top quarter in 12:22, and half the field in 14:08; the last tenth came in after 17:05.
| Age | Women | Men |
|---|---|---|
| Under 20 | 16:59 | 15:11 |
Groups with fewer than five finishers are left out. Awards vary by race; check the race's rules.
Where a finish time would have placed in 2025.
At the 2025 Triathlon Mid Sprint, the bike decided the most: the middle of the field lost about 1:44 to the top quarter there, 65% of the gap across the three legs.
| Leg | Top 10% | Top 25% | Median | Slowest 25% |
|---|---|---|---|---|
| Swim | 1:39 | 1:45 | 2:12 | 2:41+ |
| T1 | 1:03 | 1:16 | 1:44 | 1:59+ |
| Bike | 6:21 | 6:59 | 7:54 | 8:59+ |
| T2 | 0:17 | 0:21 | 0:28 | 0:34+ |
| Run | 5:22 | 5:38 | 6:14 | 6:48+ |
Each column ranks finishers on that leg alone, from the race's published results. T1 and T2 are transitions.
| Leg | Top 10% | Top 25% | Median | Slowest 25% |
|---|---|---|---|---|
| Swim | 2:01 | 2:29 | 2:46 | 3:30+ |
| T1 | 0:53 | 1:07 | 1:29 | 1:59+ |
| Bike | 10:19 | 11:25 | 12:14 | 13:34+ |
| T2 | 0:15 | 0:16 | 0:18 | 0:31+ |
| Run | 8:06 | 8:31 | 9:50 | 10:49+ |
Each column ranks finishers on that leg alone, from the race's published results. T1 and T2 are transitions.
What the organizers of Atomic Kids Fall Triathlons cover on their registration page, in brief.
Course
Long Sprint Bike Course. Mid Sprint Bike Course. Run Course - 2 Loops for Long; 1 Loop for Mid & Tadpole.
Organize this race? Add details or a correction
Come join this youth event of triathlon as the final race of the year for kids ages 2-14! Register for a choice of 3 races:
Long Sprint - 8:00 am start - 100 yard swim/2.8 mile bike/1 mile run
Mid Sprint - 8:45 am start - 50 yard swm/1.4 mile bike/.5 mile run
Tadpole Sprint - 9:20 am start - 25 yard swim/.75 mile bike/.5 mile run