Lake Country Triathlon 2027
- Date
- Saturday, July 31, 2027
- Start time
- 6:15 AM start (Chicago)
- Location
- Oconomowoc, Wisconsin
- Entry fee
- From $65 · goes up to $70 on Jan 1, 2027
- Included with entry
- Includes a shirt
- Fundraising
- Takes optional donations when you register
Registration is open.
We earn a small commission when you register through this link, at no cost to you. Details
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Events and entry fees
| Event | Distance | When | Entry fee | Cap |
|---|---|---|---|---|
| Sprint | Sprint TriathlonSwim 0.25 mi · Bike 14.3 mi · Run 3.1 miOpen water swim | Jul 31, 20276:15 AM | $65$70 after Jan 1, 2027 | – |
| Sprint Relay | Sprint TriathlonSwim 0.25 mi · Bike 12.3 mi · Run 3.1 miRelay or teamOpen water swim | Jul 31, 20276:15 AM | $165$170 after Feb 24, 2027 | – |
| Half Iron | Half Iron TriathlonSwim 1.2 mi · Bike 56 mi · Run 13.1 miOpen water swim | Jul 31, 20276:40 AM | $185$195 after Jan 1, 2027 | – |
| Half Iron Relay | Half Iron TriathlonSwim 1.2 mi · Bike 56 mi · Run 13.1 miRelay or teamOpen water swim | Jul 31, 20276:40 AM | $300 | – |
| Olympic | Olympic TriathlonSwim 1,448 m · Bike 25.6 mi · Run 6.2 miOpen water swim | Jul 31, 20276:50 AM | $75$82 after Jan 1, 2027 | – |
| Olympic Relay | Olympic TriathlonSwim 1,448 m · Bike 25.6 mi · Run 6.2 miRelay or teamOpen water swim | Jul 31, 20276:50 AM | $175$180 after Feb 24, 2027 | – |
Entry fees exclude processing fees. Prices and dates come from the race's registration page and refresh nightly.
The Sprint Triathlon fee goes up to $70 on Jan 1, 2027.
Water temperature and wetsuits at Lake Country Triathlon
Around July 31, Lac La Belle typically runs about 79°F at the surface (74 to 83°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
- Sprint: $65 until Jan 1, then $70 until Mar 1, then $75 until Apr 1, then $80 until Jun 1, then $85 until Jul 1, then $95 until Jul 17, then $120 until Jul 30, then $135 until Jul 31.
- Sprint Relay: $165 until Feb 24, then $170 until Mar 27, then $175 until Apr 26, then $180 until May 27, then $185 until Jun 26, then $250 until Jul 18.
- Half Iron: $185 until Jan 1, then $195 until Mar 1, then $205 until Apr 1, then $220 until Jun 1, then $235 until Jul 1, then $250 until Jul 17, then $275 until Jul 29, then $315 until Jul 31.
- Half Iron Relay: $300 until Feb 24, then $300 until Mar 27, then $300 until Apr 26, then $325 until May 27, then $350 until Jun 26, then $425 until Jul 18.
Online registration closes Jul 31, 2027, unless the race fills first.
Light and altitude
Sunrise on race morning is at about 5:42 AM, and the Sprint starts at 6:15 AM. The start sits about 860 feet above sea level.
Fees exclude processing fees. Comparisons use current entry fees and published results from races nearby.
Start location and course
304 W. Wisconsin Ave, Oconomowoc, WI 53066
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 Country Triathlon ranks
- No. 11 of 50 on Largest olympic triathlons in the US
- No. 18 of 50 on Largest sprint triathlons in the US
- No. 19 of 50 on Largest 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 (6 years)Sprint
Olympic
Half Iron
Aggregated from official results (Silver Circle Sports Events, LLC) for Lake Country Triathlon. Individual finisher names are not stored here.
How fast do you need to be at Lake Country Triathlon?
At the 2026 Sprint, the fastest tenth finished in 1:22:15 or better, the top quarter in 1:29:21, and half the field in 1:37:45; the last tenth came in after 2:03:10.
At the 2026 Olympic, the fastest tenth finished in 2:39:51 or better, the top quarter in 2:54:09, and half the field in 3:07:32; the last tenth came in after 3:47:51.
At the 2026 Half Iron, the fastest tenth finished in 5:06:42 or better, the top quarter in 5:22:48, and half the field in 5:55:11; the last tenth came in after 7:06:23.
| Age | Women | Men |
|---|---|---|
| Under 20 | 1:32:55 | 1:31:24 |
| 20-29 | 1:22:49 | 1:17:29 |
| 30-39 | 1:23:14 | 1:14:49 |
| 40-49 | 1:24:10 | 1:15:10 |
| 50-59 | 1:22:56 | 1:19:46 |
| 60-69 | 1:32:05 | 1:27:09 |
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 Country Triathlon
At the 2026 Sprint, the bike decided the most: the middle of the field lost about 6:46 to the top quarter there, 51% of the gap across the three legs.
Compared with a typical sprint triathlon in Wisconsin, the median bike here was 2:55 faster and the run 0:44 faster.
| Leg | Top 10% | Top 25% | Median | Slowest 25% |
|---|---|---|---|---|
| Swim | 9:01 | 10:14 | 11:49 | 13:25+ |
| T1 | 1:46 | 2:15 | 2:53 | 3:49+ |
| Bike | 43:56 | 47:08 | 50:59 | 57:21+ |
| T2 | 1:11 | 1:29 | 1:59 | 2:49+ |
| Run | 23:45 | 25:35 | 28:53 | 33:50+ |
Each column ranks finishers on that leg alone, from the race's published results. T1 and T2 are transitions.
At the 2026 Olympic, the bike decided the most: the middle of the field lost about 10:34 to the top quarter there, 43% of the gap across the three legs.
Compared with a typical olympic triathlon in Wisconsin, the median swim here was 1:05 slower, the bike 2:55 slower and the run 1:02 faster (swim lengths differ from race to race).
| Leg | Top 10% | Top 25% | Median | Slowest 25% |
|---|---|---|---|---|
| Swim | 29:05 | 31:57 | 36:07 | 40:33+ |
| T1 | 1:50 | 2:33 | 3:15 | 4:21+ |
| Bike | 1:15:37 | 1:21:13 | 1:27:18 | 1:34:26+ |
| T2 | 1:23 | 1:45 | 2:23 | 3:25+ |
| Run | 46:58 | 51:35 | 57:16 | 1:04:09+ |
Each column ranks finishers on that leg alone, from the race's published results. T1 and T2 are transitions.
Finishers by year
Up 105 percent since 2021.
All events combined, from official results.
Lake Country Triathlon Sprint Triathlon year by year
From 2023 to 2026, the field went from 258 to 363 finishers, and the median time rose from 1:33:23 to 1:37:45.
| Year | Finishers | Median | Fastest tenth | Winner |
|---|---|---|---|---|
| 2026 | 363 (+7%) | 1:37:45 | under 1:22:15 | 1:10:28 |
| 2025 | 339 (+40%) | 1:37:51 | under 1:23:30 | 1:04:43 |
| 2024 | 243 (-6%) | 1:35:22 | under 1:18:00 | 1:03:54 |
| 2023 | 258 | 1:33:23 | under 1:19:30 | 1:03:10 |
From each year's official results for the Sprint Triathlon; virtual options are left out.
How fast is it?
About average for Wisconsin sprint triathlons
The fastest quarter of the 2026 sprint triathlon field finished under 1:29:21, against 1:29:49 in a typical Wisconsin sprint triathlon, so times here are about average.
- Olympic Triathlon: Slower than most US olympic triathlons. The fastest quarter of the 2026 olympic triathlon field finished under 2:54:09, against 2:43:48 in a typical US olympic triathlon, so times here run 6 percent slower.
- Half Iron Triathlon: Faster than most US half iron triathlons. The fastest quarter of the 2026 half iron triathlon field finished under 5:22:48, against 5:34:45 in a typical US half iron triathlon, so times here run 4 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 July 31 the day usually runs from 65°F at dawn to 82°F in the afternoon, with measurable rain on about 28% of days. Cold snaps dip to 59°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
- 304 W. Wisconsin Ave, Oconomowoc, WI 53066Map
- Course
- Road
- Start elevation
- About 860 feet
- Included with entry
- Performance Tech T-Shirt (Gender Specific)
- Donations
- Accepted when you register
- Distances
- Sprint Triathlon, Olympic Triathlon, Half Iron Triathlon
- Editions
- 2027 (Jul 31, 2027), 2026 (Jul 25, 2026), 2025 (Jul 26, 2025), 2024 (Jul 27, 2024), 2023 (Jul 29, 2023), 2022 (Jul 30, 2022)
Organize this race? Add details or a correction
Quick answers
- When is Lake Country Triathlon?
- Saturday, July 31, 2027, starting at 6:15 AM.
- How much does it cost?
- Entry starts at $65 before processing fees, and rises to $70 on Jan 1, 2027.
- When does registration close?
- Online registration closes Jul 31, 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?
- Sprint Triathlon, Olympic Triathlon, Half Iron Triathlon.
- How big is it, and how fast?
- In 2026, 363 athletes finished the Sprint; the median finish was 1:37:45 and the winner finished in 1:10:28.
- Is it a fast course?
- The fastest quarter of the 2026 sprint triathlon field finished under 1:29:21, against 1:29:49 in a typical Wisconsin sprint triathlon, so times here are about average.
- Where does it start?
- 304 W. Wisconsin Ave, Oconomowoc, WI 53066.
From the organizers
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I TRI, THEREFORE I AM! TWELVE YEAR ANNIVERSARY!
Join us on Saturday, July 31, 2027 for the Lake Country Triathlon, one of the Midwest premiere endurance challenges. Located in the heart of beautiful Lake Country, Wisconsin. The Lake Country Triathlon offers an amazing race experience that begins with a swim in the clear waters of Lac La Belle, an incredible scenic ride through the rural glacial landscape of SE Wisconsin, and a run through the charming community of Oconomowoc.