⏵ Course guide · U.S. National Whitewater Center, Charlotte
The WC-50 puts you on repeated laps of the U.S. National Whitewater Center trail system in Charlotte, North Carolina, across 50 Mile and 50K distances. I will walk you through the per-lap climbing, the start and close times, and what that repeated vert actually asks of you, then give you a pacing and fueling plan with free calculators to dial in your own numbers.
These facts come from the official Whitewater Center event page. Check the current year details before you commit. Race logistics can change year to year.
Both distances run as loops on the Whitewater Center's trail system, which means the same 821 feet (50K) or 1,147 feet (50 Mile) of gain repeats every single lap.
Because you pass through a central area every lap, crewing, drop bags, and gear swaps are far simpler here than on a point-to-point course. You will also see the rest of the field regularly, which can help keep pace honest and morale up during the longer stretches.
A single lap of 821 or 1,147 feet does not sound extreme, but multiplied across a full 50K or 50 Mile, that climbing adds up fast. Respect it in training: repeated, moderate hill work that mimics doing the same climb again and again will serve you better here than a single long hill session.
The 50 Mile starts at 5:00 AM and headlamps are mandatory at the start line. The course closes at 6:45 PM, after which official times are no longer recorded, so build your pacing plan around that end-of-day window rather than assuming extra time beyond it.
With the course closing at 6:45 PM regardless of your start time, the loop format lets you check your own lap splits constantly against that fixed end point.
Because the loop repeats, you can compare your current lap time to your first lap in real time and adjust before you are in real trouble, something a point-to-point course does not give you. Plan for your later laps to slow somewhat as fatigue and repeated climbing add up, and pace your early laps accordingly.
⏵ Free tools to plan your effort
Aid stations stock water, Powerade, salty snacks, sandwiches, potatoes, energy gels, and salt, according to the official event page, so you have real options beyond what you carry yourself.
For the 50 Mile and 50K, aim for roughly 60 to 90 grams of carbohydrate per hour and sodium in the 300 to 700 mg per liter range, adjusted for early October North Carolina temperatures. Since aid is available every lap, use that predictability to plan exactly what you eat at each pass rather than improvising.
⏵ Build your fueling plan
Get a carb, sodium, fluid, and caffeine plan per hour built for your weight, your goal time, and October Charlotte conditions with the free ultra fueling calculator. Browse the rest of the free running tools at the tools hub.
⏵ Train for it with Summit Line
Get a training plan built around YOUR fitness and the repeated lap climbing of the WC-50. Summit Line reads your real training, builds the durability those laps demand, and rehearses your fueling so race day is something you execute, not guess at.
The 50 Mile carries roughly 5 laps worth of climbing at +1,147 feet per lap, which adds up to serious repeated vert over the day, and the loop format means you feel every climb multiple times rather than once. The course closing at 6:45 PM gives the 50 Mile field, which starts at 5:00 AM, close to 14 hours, generous for the distance but not unlimited, so steady pacing across repeated laps matters more than a fast single push.
The 50 Mile starts at 5:00 AM and the 50K starts at 6:00 AM. The course closes at 6:45 PM, after which official times are no longer recorded, so plan your pace against that closing time rather than assuming a separate hard cutoff for each distance.
Per lap, the 50K gains 821 feet and the 50 Mile gains 1,147 feet. Since both distances are built from repeated laps of the Whitewater Center trail system, that per-lap number compounds across the full distance, so treat every lap as a fresh dose of the same climb rather than assuming it eases up later in the race.
Fifty-mile finishers earn a belt buckle. Fifty-K finishers get a medal, though medals are only guaranteed to runners who register by August 24, 2026, so register early if a finisher medal matters to you.
Yes, headlamps are mandatory at the race start for safety, which makes sense given the 5:00 AM start for the 50 Mile is still dark. Carry one even if you expect to outrun the dark early, since conditions and pace can change.
The loop format is a real advantage for a first attempt: you pass a central aid and support area every lap, which simplifies crewing, gear swaps, and mental math compared to a point-to-point course. The repeated climbing (1,147 feet per lap) is genuine work, so build real hill strength in training, but the logistics here are about as forgiving as a 50 mile course gets.
For the 2026 edition, 50 Mile pre-registration is $115 through October 1, rising to $125 day-of. 50K pre-registration is $100, rising to $110 day-of. Add the $13 daily parking fee at the Whitewater Center when budgeting for race day.
Link this guide
Race directors and clubs: link or embed this guide anywhere. It stays current.
<a href="https://runsummitline.com/guides/wc-50-ultra-trail-marathon">The WC-50 Ultra Trail Marathon course guide</a><iframe src="https://runsummitline.com/embed/race/wc-50-ultra-trail-marathon" style="width:100%;max-width:420px;height:180px;border:0;" loading="lazy" title="WC-50 Ultra Trail Marathon course guide by Summit Line"></iframe>This guide is independent and for planning only. The format, date, and course come from public sources and can change year to year, so confirm the current specifics with the official race before you register or run. The fueling and pacing advice is general and not medical advice.
The timeline
Get the week-by-week countdown for this race: when to build, when to peak, when to taper.
One email with the timeline, plus training notes for this race. Unsubscribe any time.