Lake Terramuggus Olympic Triathlon 2027
- Date
- Saturday, August 14, 2027
- Start time
- 8:00 AM start (New York)
- Location
- Marlborough, Connecticut
- Entry fee
- From $85 · goes up to $105 on Mar 30, 2027
- Included with entry
- Includes a shirt
- Fundraising
- Takes optional donations when you register
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Events and entry fees
| Event | Distance | When | Entry fee | Cap |
|---|---|---|---|---|
| Aquabike | AquabikeOpen water swim | Aug 14, 20278:00 AM | $85$105 after Mar 30, 2027 | – |
| Olympic Relay Tri | Olympic TriathlonRelay or teamOpen water swim | Aug 14, 20278:00 AM | $115$135 after Mar 30, 2027 | – |
| Olympic Tri | Olympic TriathlonOpen water swim | Aug 14, 20278:00 AM | $95$115 after Mar 30, 2027 | – |
Entry fees exclude processing fees. Prices and dates come from the race's registration page and refresh nightly.
Water temperature and wetsuits at Lake Terramuggus Olympic Triathlon
Around August 14, Lake Terramuggus typically runs about 79°F at the surface (76 to 82°F across 2011 to 2020). The water usually runs above 78°F at this date: wetsuits are allowed but make 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.
Race day planning
Entry fee schedule
- Aquabike: $85 until Mar 29, then $105 until Aug 13, then $120 until Aug 14.
- Olympic Relay Tri: $115 until Mar 29, then $135 until Aug 13, then $150 until Aug 14.
- Olympic Tri: $95 until Mar 29, then $115 until Aug 13, then $130 until Aug 14.
Online registration closes Aug 14, 2027, unless the race fills first.
Light and altitude
Sunrise on race morning is at about 5:56 AM, and the Aquabike starts at 8:00 AM. The start sits about 410 feet above sea level.
Fees exclude processing fees. Comparisons use current entry fees and published results from races nearby.
Start location and course
Blish Park, Marlborough, CT 06447
The pin marks the address the race lists, which is usually the start. The organizers have not shared a course map with us yet.
Where Lake Terramuggus Olympic Triathlon ranks
- No. 36 of 50 on Cheapest olympic triathlons in the US
National lists computed from results, entry fees, course maps and water temperatures; they refresh through the day.
2026 results
All results (2 years)Olympic Tri
Aquabike
Olympic Relay Tri
Aggregated from official results (Fast Track Timing LLC) for Lake Terramuggus Olympic Triathlon. Individual finisher names are not stored here.
How fast do you need to be at Lake Terramuggus Olympic Triathlon?
At the 2026 Olympic Tri, the fastest tenth finished in 2:20:39 or better, the top quarter in 2:31:57, and half the field in 2:45:42; the last tenth came in after 3:12:03.
At the 2026 Aquabike, the fastest tenth finished in 1:51:52 or better, the top quarter in 2:01:32, and half the field in 2:06:28; the last tenth came in after 2:21:22.
At the 2026 Olympic Relay Tri, the fastest tenth finished in 2:28:15 or better, the top quarter in 2:31:00, and half the field in 2:36:08; the last tenth came in after 2:41:00.
| Age | Women | Men |
|---|---|---|
| Under 20 | n/a | 3:01:17 |
| 20-29 | 2:42:26 | 2:28:51 |
| 30-39 | n/a | 2:20:28 |
| 40-49 | 2:29:01 | 2:17:35 |
| 50-59 | 2:59:32 | 2:33:49 |
| 60-69 | n/a | 2:38:24 |
Groups with fewer than five finishers are left out. Awards vary by race; check the race's rules.
What would my time get me?
Where a finish time would have placed in 2026.
Swim, bike and run splits at Lake Terramuggus Olympic Triathlon
At the 2026 Olympic Tri, the bike decided the most: the middle of the field lost about 10:03 to the top quarter there, 47% of the gap across the three legs.
Compared with a typical olympic triathlon in the US, the median swim here was 1:25 faster, the bike 8:05 faster and the run 2:03 faster (swim lengths differ from race to race).
| Leg | Top 10% | Top 25% | Median | Slowest 25% |
|---|---|---|---|---|
| Swim | 24:19 | 27:35 | 31:32 | 34:19+ |
| T1 | 1:32 | 1:54 | 2:20 | 2:59+ |
| Bike | 1:05:33 | 1:09:13 | 1:13:37 | 1:22:11+ |
| T2 | 0:54 | 1:17 | 1:43 | 2:07+ |
| Run | 44:32 | 47:39 | 54:21 | 59:53+ |
Each column ranks finishers on that leg alone, from the race's published results. T1 and T2 are transitions.
Finishers by year
Up 6 percent since 2025.
All events combined, from official results.
Lake Terramuggus Olympic Triathlon Olympic Triathlon year by year
From 2025 to 2026, the field went from 94 to 96 finishers, and the median time dropped from 3:16:20 to 2:45:42.
| Year | Finishers | Median | Fastest tenth | Winner |
|---|---|---|---|---|
| 2026 | 96 (+2%) | 2:45:42 | under 2:20:39 | 2:15:09 |
| 2025 | 94 | 3:16:20 | under 2:44:46 | 2:21:30 |
From each year's official results for the Olympic Triathlon; virtual options are left out.
How fast is it?
Faster than most US olympic triathlons
The fastest quarter of the 2026 olympic triathlon field finished under 2:31:57, against 2:43:48 in a typical US olympic triathlon, so times here run 7 percent faster.
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.
Typical race-day weather
Around August 14 the day usually runs from 64°F at dawn to 82°F in the afternoon, with measurable rain on about 23% of days. Cold snaps dip to 56°F and hot years reach 89°F.
Based on 75 days within a week of the date over the last 5 years, from historical weather for the start area. Not a forecast.
Race details
- Where
- Blish Park, Marlborough, CT 06447Map
- Course
- Road
- Start elevation
- About 410 feet
- Included with entry
- T-Shirt
- Donations
- Accepted when you register
- Distances
- Olympic Triathlon, Aquabike
- Editions
- 2027 (Aug 14, 2027), 2026 (Aug 15, 2026), 2025 (Aug 16, 2025)
Organize this race? Add details or a correction
Quick answers
- When is Lake Terramuggus Olympic Triathlon?
- Saturday, August 14, 2027, starting at 8:00 AM.
- How much does it cost?
- Entry starts at $85 before processing fees, and rises to $105 on Mar 30, 2027.
- When does registration close?
- Online registration closes Aug 14, 2027, unless the race fills first.
- Do athletes get a shirt or medal?
- Entry includes a shirt, according to the race's registration page. Check it for sizes and whether kids' races get the same.
- Can I donate to a cause when I register?
- Yes. The registration form offers an optional donation, usually for the charity or nonprofit the race supports. The race's own page names the cause.
- What distances are offered?
- Olympic Triathlon, Aquabike.
- How big is it, and how fast?
- In 2026, 96 athletes finished the Olympic Tri; the median finish was 2:45:42 and the winner finished in 2:15:09.
- Is it a fast course?
- The fastest quarter of the 2026 olympic triathlon field finished under 2:31:57, against 2:43:48 in a typical US olympic triathlon, so times here run 7 percent faster.
- Where does it start?
- Blish Park, Marlborough, CT 06447.
From the organizers
LAKE TERRAMUGGUS OLYMPIC DISTANCE TRIATHLON
August 14, 2027
8:00am
Join us for the Lake Terramuggus Olympic Distance Triathlon! This is the perfect way to celebrate a summer of training and racing at the Lake Terramuggus Sprint Series - with limited adaptation to our sprint course this Olympic race will be familiar to those participating in the sprint series throughout the summer. Even if it is your first time to Lake T this race is fun and fast, moderate hills on the bike and run. A great race for your first Olympic Distance Tri!