Is June a good month for an Ultra?
June sits in the middle of the year for the Ultra, carrying 16 against 37 in April and 7 in July. Enough to choose from, and easier to get into than the races at the peak of the season.
Race calendar · June 2027
Ultramarathons in June 2027
16 ultramarathons across the US in June 2027, sorted by date. Which weekends are busiest, what the fields actually run, entry fees, and where each one starts.
June ultras in the United States split by geography more sharply than almost any other distance-and-month combination. Mountain and Northern courses can still offer cool mornings and long daylight windows that favor big efforts, while lower elevations across the South and Midwest are already dealing with heat and humidity that demand respect on any effort beyond a marathon.
The long daylight is genuinely useful here. June's extended hours support wider cutoff windows, overnight segments, and staggered starts that make the distance more manageable, but they do not neutralize heat on exposed or low-elevation courses. A runner choosing a June ultra should know which kind of course they are signing up for before committing.
With fewer options on the schedule, flexibility on date and location is limited. If a race fills or doesn't suit your build, alternatives are harder to find. That makes early registration and honest fitness assessment more important than in months with a deeper field of options.
What the field actually runs
June Ultramarathons, By the Numbers
7:02:59Median finish time
4:19:59Median winning time
90Median field size
7June ultramarathons with published results
How we calculate these stats: RunSesh calculates these figures from the most recent published results of past editions, sourced from RunSignup. We show aggregates only: field size, winning and median times, and the cutoff. We never publish individual finisher tables. Last updated Nov 12, 2026.
When in June
The June Race Weekends
Ultramarathons are not spread evenly across June. Here is how the calendar actually falls, weekend by weekend, which is the part worth knowing before you book a trip or plan a taper around one.
By the numbers
The Biggest Field
The largest field of any June Ultra, from the most recent published results.
June Ultramarathons by State
Ultra Marathons by City in June
The Next Ultra Marathons in June
16 total Thu, Jun 3, 2027IronHike Mohawk Mountain Spring Series 2027 Mohawk Mtn Ski Area, Cornwall, CTFrom $360Details Fri, Jun 4, 2027Rabid Raccoon 100 Beaver Falls, PAFrom $130Details Fri, Jun 4, 2027MoMoFo 100k and 20 mile Fun Run Martinsville, INFrom $165Details Sat, Jun 5, 2027Weld Your Mettle Running Festival Eaton, COFrom $95Details Sat, Jun 5, 2027Run, Ride, & Rumble for PTS Awareness 2027 Birmingham, ALFrom $35Details Sat, Jun 5, 2027Shadow of the Giants 50k & 20k Run Fish Camp, CAFrom $149Details Sat, Jun 5, 2027FORGE Anacortes, WARegistration opens Nov 30From $149Details Sat, Jun 5, 2027Death by 5k Albuquerque Albuquerque, NMFrom $155Details Sat, Jun 5, 2027UltraTrax AnnArbor Brighton, MIFrom $116Details Sun, Jun 6, 2027Bike-A-Thon Philadelphia, PAFrom $25Details Sat, Jun 12, 2027Summer Trail Fest Ultra 50 Mile, 50K, Half Marathon, & 5 Miler Laingsburg, MIFrom $95Details Sat, Jun 12, 2027UltraTrax West Tennessee Hurricane Mills, TNFrom $116Details
Common Questions About Running a June Ultra
How does June heat affect pacing and fueling in an ultra?
Heat compresses your sustainable pace, raises your fluid and electrolyte needs, and shifts the risk of a late-race blowup earlier into the effort. On a June ultra, plan to start slower than you think you need to, carry more liquid than your training runs required, and treat the first half as setup for the second.
What should I wear for a June ultra in the US?
Light, breathable fabrics and sun protection matter more than warmth in most of the country, but mountain and Northwest courses can still turn cold overnight. Layering with a packable wind shell covers both ends. A hat or visor and sunscreen are non-negotiable on any exposed or low-elevation course.
Should I travel specifically for a June ultra, or is it better to race locally?
Traveling to a mountain or Northern course can be worth it if your home region is hot and humid in June, since cooler conditions allow a truer performance. If you are already in a friendly climate, traveling for this distance in this month rarely improves conditions enough to justify the logistics and pre-race fatigue.
How far ahead should I start training to be ready for a June ultra?
A June race date puts your training block squarely in the coldest months of winter and early spring. That is useful for high-volume weeks when heat is not yet a factor, but it means your long efforts happen in conditions very different from race day. Build in heat acclimation work in April and May, even if it is only a few sessions.
When in June are most ultramarathons held?
The busiest weekend is June 5 and June 6, with 7 of them, 6 of those on Saturday, June 5. Another 3 fall on a weekday, which is worth knowing if you are traveling for one.
What is a good Ultra time?
Across the 7 of these June ultramarathons with published results from past editions, the median finisher ran 7:02:59, and the median winning time was 4:19:59. So anything under 7:02:59 puts you in the faster half of a typical field. That is the middle of these RunSignup fields, walkers and charity entrants included, not a national average.
How big is a typical June Ultra field?
The median one finished 90 runners, across the 7 of these June ultramarathons with published results from past editions. Most are far smaller than the big-city events people picture, which means less crowding at the start and a friendlier field, with a last recorded finisher at 9:42:14.
Which states have the most June ultramarathons?
Michigan has 2, Pennsylvania has 2, Washington has 2. If you are willing to travel, those are the states where a June weekend gives you the most to choose from.
Are there trail ultramarathons in June?
Yes, 4 races around the United States get you off the pavement: 4 are trail races.