Race IntelligenceLake Placid, New York, United States
Know your day before you race it.
Enter four numbers you already train with. You get a likely finish range, target paces and watts, and how I would race this course.
Published route evidence. Final 2027 route pending. Checked 17 Sept 2026.
01 Race Card
Your first range uses conservative assumptions. Add optional evidence to make it more specific. It is calculated in your browser and saved only on this device.
02 The course
You swim two loops in Mirror Lake, calm and clear in the middle of town, then ride two loops through the Adirondack Mountains on a course of long climbs and fast descents, then run two loops through the hilly town centre past Mill Hill before finishing at the Oval. The bike has been voted the best in the world by athletes, and it earns that both ways. Everything here depends on treating the first loop as half a race rather than a whole one.
Swim
3.8 km
Two loops in a calm, clear lake with few turn buoys and good sight lines, which makes this the one straightforward part of the day.
Source: 2027 current routeBike
180.2 km
Two loops of real Adirondack terrain with long climbs and fast descents, where the difference between loop one and loop two is the whole race.
Source: 2027 current routeRun
42.2 km
Two loops through an undulating town, including Mill Hill, on legs that have just climbed the Adirondacks twice.
Source: 2027 current routeThese facts come from the organiser’s latest published material: swim, 2027 current route; bike, 2027 current route; run, 2027 current route. They describe the character of the course. They do not confirm the final 2027 route.
03 Race plan
One job for each part of this course. The distance markers tell you when the job changes. The course tells you why.
Swim
Calm, clear water with few turn buoys and a clean line of sight, in the middle of town. There is nothing technical to manage, so use it to arrive at T1 genuinely settled before the mountains start.
Bike
The course heads straight into genuine mountain terrain. This is the single most important decision of the day: pick a climbing power you could repeat, not the one that feels good on fresh legs.
The swooping descents are where this course is fast and where free speed is genuinely available. Take it with your body position rather than with watts, and get fluid and food in while the effort is low.
The same climbs, with 90 km already in the legs. If loop one was ridden honestly, these feel hard but manageable. If it was not, this is where the marathon disappears.
The bike finishes at the Oval. The last section is about protecting your legs and finishing nutrition, not about improving your bike split.
Run
This is not a flat recovery marathon. The course rolls through town from the start, on legs that just rode the Adirondacks twice. Let the opening kilometres feel far too easy.
The crowds on Mill Hill are one of the best moments in the sport, and they arrive exactly when climbing hurts. Run it at your effort on the first lap so you can respond to them on the second.
Starting the second loop tells you what the bike actually cost. Compare it to lap one and manage what you find rather than fighting it.
The day finishes at the Oval, in a town built on Olympic history. If you rode the second bike loop the way you rode the first, there is something here to spend.
04 Race week
There is no useful 2027 forecast this far out. For now, past race dates give us a point of reference. Closer to the race, the forecast will tell us whether the plan needs changing.
A race-day forecast is not meaningful yet; check back closer to the event.
Historical baseline, 2019–2025 · Open-Meteo historical archive · Updated 2026-09-17.Historical comparison only. This is not a forecast for 2027.
05 Method
Your CSS, FTP, weight and run threshold create the first range. Open-water, bike, run and execution evidence can replace broad assumptions. Course data and the historical conditions baseline shape every simulation.
Confidence is built from four inputs
It starts with the targets in your Race Card, then samples the parts of a full distance that vary: open-water pace, transitions, bike speed at the planned power, and the drop in run performance after the swim and bike. Repeating that calculation produces a likely range rather than a single heroic number.
The current time calculation uses this race’s published distances, or standard full distance distances where none are published, with the available course headings, elevation and exposure evidence. Weather scenarios vary temperature, dew point, wind, gusts, rain and water conditions together. Unknown route detail stays visible as uncertainty rather than false precision.
It is not predicting your exact finishing time, placing, or race-day weather. It answers a narrower question: given the plan and the information we have, what range of day is plausible, and where is the uncertainty coming from?
Confidence is not a permanent “low”. It is recalculated across four separate inputs:
It starts low when those inputs are broad. It can become moderate or high as the evidence improves. A narrower range means better information, not a guarantee.
Evidence
Course status: Partially verified. The organiser’s descriptions and latest published route profiles are in use. The final 2027 route is not yet confirmed. Last checked 2026-09-17.