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Official race websiteAround September 20, Lake Audubon typically runs about 74°F at the surface (70 to 78°F across 2011 to 2020). Wetsuits were legal every year at this date.
A model estimate from the USGS lake temperature model (daily surface temperatures for US lakes), not a measurement. Wetsuit cutoffs are USA Triathlon age-group rules. The race's own water temperature reading on race morning decides.
2070 Twin Branches Road, Reston, VA 20191
The pin marks the address the race lists, which is usually the start. The organizers have not shared a course map with us yet.
National lists computed from results, entry fees, course maps and water temperatures; they refresh through the day.
Aggregated from official results (Arsenal Events) for Reston Triathlon. Individual finisher names are not stored here.
At the 2025 Reston Triathlon, the fastest tenth finished in 2:30:25 or better, the top quarter in 2:39:32, and half the field in 2:57:44; the last tenth came in after 3:44:19.
At the 2025 Olympic Relay, the fastest tenth finished in 2:30:15 or better, the top quarter in 2:34:49, and half the field in 2:48:35; the last tenth came in after 3:06:33.
At the 2025 Reston Aquabike, the fastest tenth finished in 1:46:01 or better, the top quarter in 1:48:44, and half the field in 2:04:03; the last tenth came in after 2:14:55.
| Age | Women | Men |
|---|---|---|
| 20-29 | 2:38:04 | 2:23:06 |
| 30-39 | 2:48:59 | 2:27:52 |
| 40-49 | 2:45:00 | 2:26:05 |
| 50-59 | 3:03:46 | 2:35:51 |
| 60-69 | n/a | 2:59:02 |
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 Reston Triathlon, the bike decided the most: the middle of the field lost about 11:52 to the top quarter there, 45% of the gap across the three legs.
Compared with a typical olympic triathlon in Virginia, the median swim here was 1:16 slower and the run 2:28 faster (swim lengths differ from race to race).
| Leg | Top 10% | Top 25% | Median | Slowest 25% |
|---|---|---|---|---|
| Swim | 27:53 | 31:09 | 34:39 | 40:01+ |
| T1 | 1:47 | 2:33 | 3:28 | 4:49+ |
| Bike | 1:09:10 | 1:13:07 | 1:21:13 | 1:28:14+ |
| T2 | 1:19 | 1:40 | 2:23 | 3:35+ |
| Run | 44:01 | 48:41 | 54:59 | 1:02:31+ |
Each column ranks finishers on that leg alone, from the race's published results. T1 and T2 are transitions.
Compared with a typical olympic triathlon in Virginia, the median swim here was 3:43 faster, the bike 3:17 faster and the run 5:08 faster (swim lengths differ from race to race).
| Leg | Top 10% | Top 25% | Median | Slowest 25% |
|---|---|---|---|---|
| Swim | 27:32 | 28:29 | 29:40 | 32:17+ |
| T1 | 0:51 | 0:52 | 0:54 | 1:09+ |
| Bike | 1:10:18 | 1:14:58 | 1:18:24 | 1:23:50+ |
| T2 | 0:46 | 0:56 | 1:01 | 1:11+ |
| Run | 48:02 | 48:53 | 52:19 | 56:06+ |
Each column ranks finishers on that leg alone, from the race's published results. T1 and T2 are transitions.
About average for Virginia olympic triathlons
The fastest quarter of the 2025 olympic triathlon field finished under 2:39:32, against 2:42:51 in a typical Virginia olympic triathlon, so times here are about average.
Compares the fastest quarter of each field, so walkers and first-timers do not skew it. It reflects the course and the field together: a flat course, cool weather, or a competitive crowd all make times faster.
What the organizers of Reston Triathlon cover on their registration page, in brief.
Awards
Overall Awards. Top 3 Males. Top 3 Females. Age Group Awards. 19 & Under. 20-24. 25-29. 30-34. 35-39. 40-44. 45-49. 50-54. 55-59. 60-64. 65-69. 70-74. 75 & Older. Athena Female (165+). Clydesdale Male (220+ plus). Relays. Mixed Relay - Top…
Rules and FAQ
We have a no refund and no deferral policy. CORE Foundation is a 501(c)3 nonprofit and all funds raised through our triathlon events are used to assist our community. If you are unable to participate and would like to receive a tax…
Organize this race? Add details or a correction
Since 1984, the Reston Triathlon has been a staple in our community. It opens with a 1500-meter open water swim in Lake Audubon, followed by a 25-mile bike ride and a 10K run on local paths. The Olympic distance event has challenged athletes from around the country and has affectionately been called the Reston Triathlon World Championship.