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Around September 12, Lake Hopatcong typically runs about 75°F at the surface (72 to 79°F across 2011 to 2020). Wetsuits are usually legal, but in warmer years the water topped 78°F, when wearing one makes you ineligible for age-group awards.
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.
Crescent Cove Beach Club, Hopatcong, NJ 07843
The pin marks the address the race lists, which is usually the start. Course maps are the organizers' own.
Aggregated from official results (CompuScore Services, LLC) for Lake Hopatcong Sprint Triathlon Challenge Presented by Saint Clare's Health. Individual finisher names are not stored here.
At the 2026 Sprint Triathlon, the fastest tenth finished in 1:18:20 or better, the top quarter in 1:27:39, and half the field in 1:39:32; the last tenth came in after 2:12:48.
At the 2026 Relay, the fastest tenth finished in 1:09:48 or better, the top quarter in 1:11:39, and half the field in 1:22:21; the last tenth came in after 1:45:01.
At the 2026 AquaBike, the fastest tenth finished in 1:05:15 or better, the top quarter in 1:10:36, and half the field in 1:18:17; the last tenth came in after 1:23:45.
| Age | Women | Men |
|---|---|---|
| Under 20 | 2:12:49 | 1:42:47 |
| 20-29 | 1:47:55 | 1:16:27 |
| 30-39 | 1:27:31 | 1:14:52 |
| 40-49 | 1:30:21 | 1:12:48 |
| 50-59 | 1:26:22 | 1:12:06 |
| 60-69 | n/a | 1:48:36 |
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 2026.
Up 8 percent since 2025.
All events combined, from official results.
From 2025 to 2026, the field went from 197 to 205 finishers, and the median time rose from 1:38:25 to 1:39:32.
| Year | Finishers | Median | Fastest tenth | Winner |
|---|---|---|---|---|
| 2026 | 205 (+4%) | 1:39:32 | under 1:18:20 | 1:08:18 |
| 2025 | 197 | 1:38:25 | under 1:22:30 | 1:10:27 |
From each year's official results for the Sprint Triathlon; virtual options are left out.
Slower than most New Jersey sprint triathlons
The fastest quarter of the 2026 sprint triathlon field finished under 1:27:39, against 1:18:50 in a typical New Jersey sprint triathlon, so times here run 11 percent slower.
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 Lake Hopatcong Sprint Triathlon Challenge Presented by Saint Clare's Health cover on their registration page, in brief.
Awards
Sprint Triathlon. 1st, 2nd, 3rd Male and Female Overall. 1st and Second. Age Group: and under 24. Age Group: 25 – 29. Age Group: 30 – 34. Age Group: 35 – 39. Age Group: 40 – 44. Age Group: 45 – 49. Age Group: 50 – 54. Age Group: 55 – 59…
Organize this race? Add details or a correction
Lake Hopatcong “Tri”s Harder
Join us for the 3rd Annual Lake Hopatcong Sprint Triathlon Challenge, presented by Saint Clare’s Health! Whether you’re going solo or racing as a team, this event is all about pushing yourself, cheering each other on, and celebrating the strength of our community.
Sprint Triathlon Distances:
400m Swim
12.5 Mile Bike
3.1 Mile Run
Your Registration Includes:
A super-soft race shirt
Finisher's Medal
Course Overview: