Quick Answer
For a fast PR course, the 3M Half Marathon (Austin, TX) and Rock ‘n’ Roll Las Vegas Half are consistently the top choices — both are net downhill or flat with strong fields. For scenery, the Napa to Sonoma Wine Country Half and Big Sur Half (Monterey Bay) lead the category. For big-city energy and logistics, the NYC Half and Chicago Half Marathon are hard to beat. For national park experiences, the Grand Teton Half and Zion Half offer world-class landscapes. Most events run in spring or fall; entry fees typically range from $100–$180.
At a Glance: Best Half Marathons in the US by Category
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| Race | Location | Month | Category | Course character |
|---|---|---|---|---|
| Austin International Half (formerly 3M Half) | Austin, TX | January | Fastest / PR | Point-to-point, 300ft+ net downhill |
| Rock 'n' Roll Las Vegas Half | Las Vegas, NV | November | Fastest / PR | Flat, night race on the Strip |
| United Airlines NYC Half | New York, NY | March | Big city | Brooklyn to Central Park via Times Square |
| Brooklyn Half Marathon | Brooklyn, NY | May | Big city / largest field | Flat, 25,000+ runners, Coney Island finish |
| Chicago Half Marathon | Chicago, IL | September | Big city / PR-friendly | Flat lakefront course |
| Napa to Sonoma Half Marathon | Napa Valley, CA | July | Scenic / destination | Point-to-point through vineyards |
| Monterey Bay Half Marathon | Monterey, CA | November | Scenic / destination | Ocean views, redwood hills |
| Grand Teton Half Marathon | Jackson, WY | June | National park | Point-to-point, Snake River views |
| Zion Half Marathon | Springdale, UT | February | National park | Gradual uphill, canyon scenery |
| Missoula Half Marathon | Missoula, MT | July | Small town / PR | Flat, highly organised, great community |
| Philadelphia Half Marathon | Philadelphia, PA | November | Historic / destination | City landmarks, flat to rolling |
| Rock 'n' Roll Nashville Half | Nashville, TN | April | Party / music | Rolling, live bands on course |
Best PR Courses: Where to Run Your Fastest Time
If your primary goal is a personal best, course profile matters as much as training. Look for net-downhill or flat routes, cool race-day temperatures, and large fields that help carry your pace.
Austin International Half (formerly 3M Half Marathon) — Austin, TX (January)
Consistently ranked among the fastest half marathon courses in the US, the Austin International Half (previously known as the 3M Half Marathon) descends over 300 feet net elevation on a point-to-point route through north Austin, finishing near the Texas State Capitol. January timing means cool morning temperatures and manageable humidity, both of which favour fast times. The race draws a competitive field and is well-suited to runners targeting a PR or a Boston qualifying effort. Note that because the net elevation drop exceeds the World Athletics ratio for record eligibility, times run here do not qualify for world record consideration — but for recreational PRs, it’s one of the best courses in the country.
Rock ‘n’ Roll Las Vegas Half Marathon — Las Vegas, NV (November)
Held at night along the closed Las Vegas Strip, this race has a flat course, a festival atmosphere with live music throughout, and the spectacle of the neon Strip at full illumination. The night format means mild temperatures even in November, and the energy from the crowd and production is a genuine performance booster. It’s one of the most entertaining race experiences in the country regardless of goal time.
Chicago Half Marathon — Chicago, IL (September)
The Chicago Half follows the lakefront, giving runners a flat, fast course with views of Lake Michigan along much of the route. It shares the city’s well-earned reputation for race logistics and crowd support. September is early enough that Chicago temperatures are generally favourable, and the race is part of a long weekend that makes it an easy destination trip for runners from anywhere in the Midwest or East Coast.
Best Big-City Races: Energy, Logistics, and Landmarks
United Airlines NYC Half — New York, NY (March)
The NYC Half takes runners from Brooklyn’s Prospect Park through downtown Manhattan, across the iconic midtown streets, through a temporarily closed Times Square, and finishes in Central Park. It’s one of the few times Times Square is cleared of traffic, creating a uniquely theatrical race moment. The course is mostly flat with a few manageable climbs and carries a 3-hour cut-off. This is one of the more competitive entry processes among US half marathons — places are allocated through a lottery for non-NYRR members.
Brooklyn Half Marathon — Brooklyn, NY (May)
The Brooklyn Half is the largest half marathon in the United States, typically drawing more than 25,000 finishers. Starting in Prospect Park, the course runs through Brooklyn neighbourhoods before finishing on the Coney Island Boardwalk. It’s exceptionally well-organised through NYRR and provides one of the most diverse and energetic field atmospheres of any race in the country. The course has some rolling hills in Prospect Park but is largely flat after that.
Philadelphia Half Marathon — Philadelphia, PA (November)
Run as part of the Philadelphia Marathon weekend in November, the Philly Half takes runners past some of the city’s most significant historic landmarks — the Liberty Bell area, Independence Hall, and the Benjamin Franklin Parkway. It’s a flat to mildly rolling course and the city’s autumn backdrop makes it one of the more visually rewarding urban half marathons on the East Coast. Entry typically opens months in advance and fills quickly.
Best Scenic and Destination Races
Napa to Sonoma Wine Country Half Marathon — Napa Valley, CA (July)
This point-to-point race runs through Carneros wine country from a winery in Napa to Sonoma Plaza, passing vineyards, rolling hills, and pastoral landscapes that make the effort feel considerably less grim than most race courses. Post-race finishers are handed wine rather than a sports drink, which tells you everything about the atmosphere. Named one of the most scenic half marathons in the US by multiple publications, it’s an ideal racecation event — with Napa and Sonoma’s restaurants, wineries, and accommodation making the trip worthwhile independent of the race.
Monterey Bay Half Marathon — Monterey, CA (November)
Formerly known as the Big Sur Half Marathon, this race runs along the California coast with views of the Pacific Ocean, redwood forest hills, and the Monterey Bay marine sanctuary. It’s a moderately challenging course with some rolling sections, but the scenery compensates fully. Monterey is a compelling destination in its own right — the aquarium, Cannery Row, and 17-Mile Drive make this an easy long-weekend trip for runners travelling from elsewhere in California or flying in from the East Coast.
Rock ‘n’ Roll Nashville Half Marathon — Nashville, TN (April)
The Nashville Half runs through downtown past Broadway’s honky-tonks, the Country Music Hall of Fame, Music Row, and The Gulch. Live bands are stationed throughout the course, and the race benefits St. Jude Children’s Research Hospital. The course is rolling rather than flat, so it’s not the right choice if your sole focus is a PR — but the atmosphere, post-race access to Nashville’s music scene, and the charity angle make it one of the most enjoyable race weekends in the country.
Best National Park and Outdoor Races
Grand Teton Half Marathon — Wilson, WY (June)
Staged in Grand Teton National Park with the Teton Range as a backdrop, the Grand Teton Half runs a point-to-point route that crosses the Snake River and gains some elevation toward the mountains. Jackson sits at over 6,000 feet — runners coming from lower altitudes should allow 2–3 days of acclimatisation beforehand. The course scenery is exceptional, and the race weekend dovetails well with a stay in Jackson Hole, one of the most beautiful outdoor destinations in the US.
Zion Half Marathon — Springdale, UT (February)
The Zion Half runs on paved paths through Zion National Park in Utah, a landscape of towering red sandstone cliffs and slot canyons that has no equivalent on any other race course in the country. The course climbs gradually throughout, so it is not suited to a PR attempt, but as a bucket-list race experience it stands apart. February timing means cool desert temperatures and clear skies, and the surrounding park is far less crowded than it will be in summer.
Missoula Half Marathon — Missoula, MT (July)
Missoula’s half marathon has been named the best race in the US by Runner’s World and BibRave on multiple occasions — a remarkable result for a small-town event. The course is flat and fast, the organisation is notably polished, and the surrounding Montana landscape of rivers, forests, and mountain ranges gives the race a setting that many larger events cannot match. For runners who want a PR-friendly course with a genuinely community feel rather than big-city scale, Missoula is an outstanding choice.
How to Choose the Right Half Marathon for You
With thousands of half marathons across the US every year, narrowing the list to the right race comes down to a few key questions: what’s your primary goal, when can you train, and how much travel do you want to build around it?
Goal: PR or fast time. Prioritise flat or net-downhill courses and races in cool-weather months (January–April or September–November). The 3M Half, Chicago Half, and Missoula Half are the strongest options here. Avoid hilly destination races if a time goal is the main objective.
Goal: experience and scenery. The national park races (Grand Teton, Zion) and wine country events (Napa to Sonoma) deliver scenery and atmosphere that justify the travel regardless of finish time. Allow extra time either side of the race to experience the destination.
First half marathon. Larger, well-organised events like the Brooklyn Half or Chicago Half provide support, crowd energy, and logistics that make a first-time experience easier. The flat courses also reduce the uncertainty of managing effort on an unfamiliar distance. For training guidance, the 14-week beginner half marathon training plan provides a full build from scratch to race-ready.
Training timeline. Most runners need 10–16 weeks of structured preparation. If you’re already running regularly, a 7-week training plan can get you to the start line in good shape. Runners targeting a specific time goal generally benefit from a longer build — the 11-week half marathon plan or a full 14-16 week programme gives more space to develop race-specific fitness.
Travel logistics. Destination races work best when the surrounding area justifies a 2–4 night stay. Napa Valley, Jackson Hole, Monterey, Nashville, and Philadelphia all offer enough beyond the race to make the trip worthwhile. For purely local convenience, most regions have a well-organised club event that doesn’t require flights or hotel bookings.
What to Know Before You Register
Entry fees at major US half marathons typically run $100–$180, with early bird pricing saving $20–$40. Some large events like the NYC Half use a lottery system — applications open months in advance and acceptance is not guaranteed. Popular destination races like Napa to Sonoma sell out within days of registration opening, so if you have a specific target race, add it to your calendar the moment registration opens.
Most races have cut-off times of 3–4 hours, which accommodates a wide range of paces. Check the specific cut-off for your target race if you’re a slower runner or planning to run-walk the distance. For guidance on preparing the week before your race, the half marathon taper guide covers how to manage your final week without losing sharpness. If you’re calculating target pace or comparing your finish time to benchmarks, the guide on how long a half marathon is explains course measurement, GPS discrepancies, and what to expect from the distance on race day.
For runners chasing a sub-2-hour finish, the sub-2 hour half marathon guide covers the pacing strategy and training requirements in detail. If your goal is 1:45, the 1:45 half marathon pace guide provides specific session targets and race-day splits.
Find the Race That Earns Its Place on Your Calendar
The right half marathon is one you’ll still be talking about months later — because the course earned it, the logistics were seamless, or the location made the trip feel like more than just a race. The 12 events on this list cover the full range of what the US has to offer, from the sheer scale of the Brooklyn Half to the silence and sandstone of Zion. Pick the race that matches your goal, give yourself enough runway to train properly, and show up having earned the experience.
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What is the biggest half marathon in the US?
The Brooklyn Half Marathon is the largest in the US, consistently drawing over 25,000 finishers. It runs from Prospect Park through Brooklyn to the Coney Island boardwalk and is organised by NYRR.
What is the fastest half marathon course in the US?
The 3M Half Marathon in Austin is widely considered the fastest — it descends over 400 feet net on a point-to-point course and is held in January when temperatures are typically cool. The Rock ‘n’ Roll Las Vegas Half is also flat and consistently produces fast times.
When is the best time of year to run a half marathon in the US?
Spring (March–May) and fall (September–November) offer the best conditions across most of the country — cooler temperatures and lower humidity. Summer races are viable at higher elevations or in temperate coastal locations like Napa Valley.
How much does a half marathon in the US typically cost?
Entry fees usually range from $100–$180, with major city and destination races at the upper end. Early registration saves $20–$40. Some charity races require fundraising commitments on top of the entry fee.
How long does it take to train for a half marathon?
Most runners need 10–16 weeks of structured training. Beginners can be ready in 12–14 weeks with a solid plan. Runners targeting a specific time goal benefit from 14–16 weeks to build race-specific fitness. A 7–11 week plan works for runners who are already running regularly.
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