Ultramarathons This Week

Endurance Grid lists 7 ultramarathons this week across 7 states.

Also happening

Ultramarathons This Weekend Ultramarathons This Month Races This Week (US)All ultramarathons

Filter by

Showing 7 events

▾

July 2026 Ultra Races

7 upcoming Ultra races in July.

Races happening soon.

Endurance races happening in the next 7 days, in date order. Browse what’s coming up and sign up soon.

Jul

17–18

Fri–Sat

Ultra

High Lonesome 100

Co Rd 321, Nathrop, CO

100 Mile

Avg 84° / 50°·8,048 ft city elevation

Avg 84° / 50°8,048 ft city elevation

Jul

Sat

Ultra

JMC Running Co: 4-Hour Relay & Solo-Ultra Challenge

100 Academic Way, Phoenixville, PA

Avg 88° / 67°·169 ft city elevation

Avg 88° / 67°169 ft city elevation

Jul

Sat

Running

Carolina Reaper Challenge (50k - 13.1 - 10k & Relay)

2959 New Easley Hwy, Greenville, SC

8K / 5 Mile · Half Marathon · 50K

Avg 91° / 72°·927 ft city elevation

Avg 91° / 72°927 ft city elevation

Jul

Sat

Ultra

Last Airman Standing

Flight line, Malmstrom A F B, MT

Avg 87° / 56°

Jul

18–19

Sat–Sun

Running

Full Moon 25k/50k

Perryville, AR

50K

Avg 90° / 70°·281 ft city elevation

Avg 90° / 70°281 ft city elevation

Jul

18–19

Sat–Sun

Running

Survive the Night Relays

Kroger Field, 1540 University Drive, Lexington, KY

Marathon · 50 Mile · 100 Mile

Avg 87° / 67°·994 ft city elevation

Avg 87° / 67°994 ft city elevation

+ 1 more happening in the next 7 days below — keep scrolling.

Jul

18–19

Sat–Sun

Running

CandleLight 12/24 Hour - Overnight Ultra and Relays

Rochester Rotary Sunshine Camp, Rush, NY

Avg 82° / 60°·579 ft city elevation

Avg 82° / 60°579 ft city elevation

Frequently Asked Questions (FAQs)

What ultramarathons are happening this week?+

Endurance Grid's Race Calendar lists 7 upcoming ultramarathons this week across 7 states in the US.

Which states have the most ultramarathons this week?+

The states with the most ultramarathons this week are Arkansas, Colorado, Kentucky, Montana, New York, and Pennsylvania.

How often is this page updated?+

This page refreshes every day, so it always shows the ultramarathons coming up this week.

Filter by

Showing 7 events

▾

July 2026 Ultra Races

7 upcoming Ultra races in July.

Races happening soon.

Endurance races happening in the next 7 days, in date order. Browse what’s coming up and sign up soon.

Jul

17–18

Fri–Sat

Ultra

High Lonesome 100

Co Rd 321, Nathrop, CO

100 Mile

Avg 84° / 50°·8,048 ft city elevation

Avg 84° / 50°8,048 ft city elevation

Jul

Sat

Ultra

JMC Running Co: 4-Hour Relay & Solo-Ultra Challenge

100 Academic Way, Phoenixville, PA

Avg 88° / 67°·169 ft city elevation

Avg 88° / 67°169 ft city elevation

Jul

Sat

Running

Carolina Reaper Challenge (50k - 13.1 - 10k & Relay)

2959 New Easley Hwy, Greenville, SC

8K / 5 Mile · Half Marathon · 50K

Avg 91° / 72°·927 ft city elevation

Avg 91° / 72°927 ft city elevation

Jul

Sat

Ultra

Last Airman Standing

Flight line, Malmstrom A F B, MT

Avg 87° / 56°

Jul

18–19

Sat–Sun

Running

Full Moon 25k/50k

Perryville, AR

50K

Avg 90° / 70°·281 ft city elevation

Avg 90° / 70°281 ft city elevation

Jul

18–19

Sat–Sun

Running

Survive the Night Relays

Kroger Field, 1540 University Drive, Lexington, KY

Marathon · 50 Mile · 100 Mile

Avg 87° / 67°·994 ft city elevation

Avg 87° / 67°994 ft city elevation

+ 1 more happening in the next 7 days below — keep scrolling.

Jul

18–19

Sat–Sun

Running

CandleLight 12/24 Hour - Overnight Ultra and Relays

Rochester Rotary Sunshine Camp, Rush, NY

Avg 82° / 60°·579 ft city elevation

Avg 82° / 60°579 ft city elevation