Ultramarathons Fall 2026

Endurance Grid lists 79 ultramarathons in fall 2026 across 27 states.

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Showing 79 events

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September 2026 Ultra Races

21 upcoming Ultra races in September.

Sep

4–5

Fri–Sat

Running

Dusk to Dawn Relay + Ultra 2026

Bonneville Speedway Road, Wendover, UT

50 Mile

Avg 84° / 59°·4,297 ft city elevation

Avg 84° / 59°4,297 ft city elevation

Sep

5–6

Sat–Sun

Ultra

Tuscazoar Endurance Race (100 miler) - Big(gerstaff) Miles for a Big(gerstaff) 40th Birthday Celebration!!

6066 Boy Scout Road, Dover, OH

100 Mile

Avg 80° / 56°·909 ft city elevation

Avg 80° / 56°909 ft city elevation

Sep

10–13

Thu–Sun

Running

Old Forge Marathon Weekend - Ultra, Marathon, Half Marathon, 10K, 5K, Kayak, Bike

George T Hiltebrant Recreation Center, Old Forge, NY

5K · 10K · Half Marathon · Marathon · 50K · 50 Mile · Ultra · Under 25 mi · Sprint

Avg 70° / 48°·1,881 ft city elevation

Avg 70° / 48°1,881 ft city elevation

Sep

11–12

Fri–Sat

Triathlon

Smith Mountain Lake Ultra Triathlon

1235 State Park Road, Huddleston, VA

100 Mile · Ironman

Avg 81° / 61°·837 ft city elevation

Avg 81° / 61°837 ft city elevation

Sep

Sat

Running

The Last Boyscout

Ferne Clyffe Dam, Goreville, IL

4 Mile

Avg 83° / 58°·665 ft city elevation

Avg 83° / 58°665 ft city elevation

Sep

Sat

Running

Germantown 50k and 50k Relay (2026)

7013 Boomershine Rd, Germantown, OH

50K

Avg 80° / 55°·718 ft city elevation

Avg 80° / 55°718 ft city elevation

Sep

Sat

Running

Musser Madness endurance race

Hart Scout Reservation, 1425 Camp Rd, Pennsburg, PA

2 Mile / 3K · 10K

Avg 78° / 55°·332 ft city elevation

Avg 78° / 55°332 ft city elevation

Sep

Sun

Ultra

Never Forget 9:11 Endurance

701 W Poinsett St, Greer, SC

Avg 84° / 64°·970 ft city elevation

Avg 84° / 64°970 ft city elevation

Sep

Sun

Ultra

Saddle2Surf

2191 Fifth Street, Norco, CA

50K · 50 Mile

Avg 94° / 61°·628 ft city elevation

Avg 94° / 61°628 ft city elevation

Sep

Sat

Running

Pilot Mountain to Hanging Rock Ultra

1110 Flinchum Rd, Danbury, NC

50K · 50 Mile

Avg 79° / 59°·934 ft city elevation

Avg 79° / 59°934 ft city elevation

Sep

Sat

Running

Adventure Trail Ultras

7234 Old Forest Rd, Corydon, IN

50K · 50 Mile

Avg 81° / 55°·694 ft city elevation

Avg 81° / 55°694 ft city elevation

Sep

19–20

Sat–Sun

Running

Paris Texas Marathon

2025 S Collegiate Dr, Paris, TX

5K · 10K · Half Marathon · Marathon · 50K · 100K

Avg 88° / 65°·585 ft city elevation

Avg 88° / 65°585 ft city elevation

Sep

Sun

Ultra

River Driver 50 Miler

10 Prince Street, Lincoln, ME

50 Mile

Avg 68° / 46°·435 ft city elevation

Avg 68° / 46°435 ft city elevation

Sep

25–27

Fri–Sun

Running

Red Feather Trail Jamboree

2331 County Rd 68C, Red Feather Lakes, CO

Half Marathon · 50K · 50 Mile · Ultra

Avg 65° / 35°·9,241 ft city elevation

Avg 65° / 35°9,241 ft city elevation

Sep

Sat

Running

Sasquatch Trail Run + Last One Standing

29409 170th St, Detroit Lakes, MN

4 Mile

Avg 65° / 42°·1,370 ft city elevation

Avg 65° / 42°1,370 ft city elevation

Sep

Sat

Ultra

JP's Backyard Ultra/Hike, The Final Edition

2201 Imola Avenue, Napa, CA

Ultra

Avg 83° / 52°·140 ft city elevation

Avg 83° / 52°140 ft city elevation

Sep

Sat

Running

West Line Winder

402 E Main St, Buena Vista, CO

50K

Avg 71° / 36°·8,017 ft city elevation

Avg 71° / 36°8,017 ft city elevation

Sep

Sat

Running

KROP - Kaizen Rite of Passage

19679 S 550 Rd, Tahlequah, OK

4 Mile · 8 Mile · 50K

Avg 82° / 57°·817 ft city elevation

Avg 82° / 57°817 ft city elevation

Sep

26–27

Sat–Sun

Running

Sangre de Cristo Trail Festival

Grape Creek Trailhead (Almost), Westcliffe, CO

8 Mile · 50K · 50 Mile · 100K · Ultra

Avg 69° / 33°·8,080 ft city elevation

Avg 69° / 33°8,080 ft city elevation

Sep

26–27

Sat–Sun

Ultra

2026 Hinson Lake 24 Hour Ultra Classic

152 Hinson Lake Road, Rockingham, NC

Avg 82° / 60°·284 ft city elevation

Avg 82° / 60°284 ft city elevation

Sep

Sun

Ultra

Sawatch Ascent

Co Rd 321, Nathrop, CO

50K

Avg 70° / 36°·8,048 ft city elevation

Avg 70° / 36°8,048 ft city elevation

October 2026 Ultra Races

47 upcoming Ultra races in October.

Oct

1–4

Thu–Sun

Ultra

Iron Hike - Fall Answer the Bell Ultra Trail Marathon - Full (Backyard Ultra Format) - 100+ Miles | 50,400' Elevation | 84-Hour | Run, Hike or Walk

Mohawk Mountain Ski Area, Cornwall, CT

100K

Avg 70° / 44°·674 ft city elevation

Avg 70° / 44°674 ft city elevation

Oct

1–4

Thu–Sun

Ultra

Iron Hike - Fall Everest / 29029 Everesting Ultra Trail Marathon - 61+ Miles | 29,029'+ Elevation | 72-Hour | Run, Hike or Walk

Mohawk Mountain Ski Area, Cornwall, CT

100K

Avg 70° / 44°·674 ft city elevation

Avg 70° / 44°674 ft city elevation

Oct

1–4

Thu–Sun

Ultra

Iron Hike - Fall Everest / 29029 Everesting Ultra Trail Marathon Relay - 61+ Miles | 29,029'+ Elevation | 72-Hour | Run, Hike or Walk

Mohawk Mountain Ski Area, Cornwall, CT

100K

Avg 70° / 44°·674 ft city elevation

Avg 70° / 44°674 ft city elevation

Oct

1–4

Thu–Sun

Ultra

Iron Hike - Fall Olympus Mons Ultra Trail Marathon - powered by Skratch Labs ® - 152+ Miles | 72,590' Elevation | 84-Hour | Run, Hike or Walk

Mohawk Mountain Ski Area, Cornwall, CT

Ultra

Avg 70° / 44°·674 ft city elevation

Avg 70° / 44°674 ft city elevation

Oct

1–4

Thu–Sun

Ultra

Iron Hike - Fall Olympus Mons Ultra Trail Marathon Relay - powered by Skratch Labs ® - 152+ Miles | 72,590' Elevation | 84-Hour | Run, Hike or Walk

Mohawk Mountain Ski Area, Cornwall, CT

Ultra

Avg 70° / 44°·674 ft city elevation

Avg 70° / 44°674 ft city elevation

Oct

1–4

Thu–Sun

Running

IronHike Mohawk Mountain Fall 2026

46 Great Hollow Road, Mohawk Mtn Ski Area, Cornwall, CT

100K · 100 Mile · Ultra

Avg 70° / 44°

Oct

2–4

Fri–Sun

Ultra

Iron Hike - Fall Denali Ultra Trail Marathon - 43+ Miles | 20,825' Elevation | 48-Hour | Run, Hike or Walk

Mohawk Mountain Ski Area, Cornwall, CT

Ultra

Avg 69° / 43°·674 ft city elevation

Avg 69° / 43°674 ft city elevation

Oct

2–4

Fri–Sun

Ultra

Iron Hike - Fall Denali Ultra Trail Marathon Relay - 43+ Miles | 20,825' Elevation | 48-Hour | Run, Hike or Walk

Mohawk Mountain Ski Area, Cornwall, CT

Ultra

Avg 69° / 43°·674 ft city elevation

Avg 69° / 43°674 ft city elevation

Oct

Sat

Running

Night Owl 5k, 10k and the 6 hour shuffle

Lake Elmo Park Reserve 1515 Keats Ave N, Lake Elmo, MN

5K · 10K

Avg 64° / 44°·934 ft city elevation

Avg 64° / 44°934 ft city elevation

Oct

Sat

Ultra

MIDNIGHT RECON

Fayetteville Farmer's Market & Historic Square, Fayetteville, AR

Ultra

Avg 76° / 53°·1,246 ft city elevation

Avg 76° / 53°1,246 ft city elevation

Oct

3–4

Sat–Sun

Ultra

Bear Lake Ultra

3409 5 Lakes Rd, Lapeer, MI

Avg 67° / 44°·835 ft city elevation

Avg 67° / 44°835 ft city elevation

Oct

3–4

Sat–Sun

Ultra

Iron Hike - Fall Answer the Bell Ultra Trail Marathon - Basic (Backyard Ultra Format) - 28+ Miles | 14,400'+ Elevation | 24-Hour | Run, Hike or Walk

Mohawk Mountain Ski Area, Cornwall, CT

100K

Avg 69° / 43°·674 ft city elevation

Avg 69° / 43°674 ft city elevation

Oct

3–4

Sat–Sun

Ultra

Iron Hike - Fall Double Kuwohi Trail Marathon Plus - 28+ Miles | 13,685' Elevation | 24-Hour | Run, Hike or Walk

Mohawk Mountain Ski Area, Cornwall, CT

Avg 69° / 43°·674 ft city elevation

Avg 69° / 43°674 ft city elevation

Oct

3–4

Sat–Sun

Ultra

Iron Hike - Fall Double Kuwohi Trail Marathon Plus Relay - 28+ Miles | 13,685' Elevation | 24-Hour | Run, Hike or Walk

Mohawk Mountain Ski Area, Cornwall, CT

Avg 69° / 43°·674 ft city elevation

Avg 69° / 43°674 ft city elevation

Oct

Sun

Running

Kettle Cooker Trail Race

50 W Christine Road, Nottingham, PA

8K / 5 Mile · 50K

Avg 69° / 49°·447 ft city elevation

Avg 69° / 49°447 ft city elevation

Oct

Sun

Running

Heritage 50k & Half-Marathon

Heritage Park, Adrian, MI

Half Marathon · 50K

Avg 69° / 44°·756 ft city elevation

Avg 69° / 44°756 ft city elevation

Oct

9–11

Fri–Sun

Ultra

Indiana Trail 100

2355 E 75 S, Albion, IN

50 Mile · 100 Mile · Ultra

Avg 66° / 44°·898 ft city elevation

Avg 66° / 44°898 ft city elevation

Oct

Sat

Ultra

The Devils Race Track Backyard Ultra

10130 Spragins Hollow Rd NW, Huntsville, AL

Avg 78° / 54°·624 ft city elevation

Avg 78° / 54°624 ft city elevation

Oct

Sat

Running

Ruth Anderson Memorial Endurance Run

Lake Merced Blvd Parking Lot (North), San Francisco, CA

50K · 50 Mile

Avg 71° / 55°·43 ft city elevation

Avg 71° / 55°43 ft city elevation

Oct

Sat

Running

Suffer Better 10th Annual Fall Trail Runs

Staunton State Park, Pine, CO

50K

Avg 61° / 26°·8,109 ft city elevation

Avg 61° / 26°8,109 ft city elevation

Oct

Sat

Running

Le Grizz Ultramarathon & Relay

Big Creek Outdoor Education Center, Polebridge, MT

5K · 15K · 50 Mile

Avg 58° / 27°·4,014 ft city elevation

Avg 58° / 27°4,014 ft city elevation

Oct

Sat

Running

CanLake Ultras

Finger Lakes Community College, Canandaigua, NY

50K · 50 Mile

Avg 63° / 45°·775 ft city elevation

Avg 63° / 45°775 ft city elevation

Oct

Sat

Ultra

Ridge Creek Run Club 12 Hour Ultra

3018 Ridge Creek Drive, Dinuba, CA

Avg 80° / 54°·329 ft city elevation

Avg 80° / 54°329 ft city elevation

Oct

Sat

Ultra

Toughest Last Man Standing Utah (Tushar Mountains)

150 S W Village Cir, Beaver, UT

Avg 88° / 69°·5,967 ft city elevation

Avg 88° / 69°5,967 ft city elevation

Oct

Sat

Swimming

Unity Beach Swim - Aquathlon & Run Training Races (Oct 10th 2026)

15100 Gulf Blvd Maderia Beach, Saint Petersburg, FL

Avg 86° / 72°·24 ft city elevation

Avg 86° / 72°24 ft city elevation

Oct

10–11

Sat–Sun

Ultra

Anderson Lake Backyard Ultra

Anderson Lake West State Forest Campground, Gwinn, MI

100 Mile

Avg 56° / 37°·1,153 ft city elevation

Avg 56° / 37°1,153 ft city elevation

Oct

10–11

Sat–Sun

Running

Wolverine State 100

101 E Lake St, Petoskey, MI

50K · 100K · 100 Mile

Avg 59° / 41°·839 ft city elevation

Avg 59° / 41°839 ft city elevation

Frequently Asked Questions (FAQs)

What ultramarathons are happening in fall 2026?+

Endurance Grid's Race Calendar lists 79 upcoming ultramarathons in fall 2026 across 27 states in the US.

Which states have the most ultramarathons in fall 2026?+

The states with the most ultramarathons in fall 2026 are Connecticut, Colorado, California, North Carolina, Indiana, and Michigan.

How current is this fall ultramarathons calendar?+

This page refreshes every day and always shows the next fall, so the ultramarathons coming up never go stale.

Filter by

Showing 79 events

▾

September 2026 Ultra Races

21 upcoming Ultra races in September.

Sep

4–5

Fri–Sat

Running

Dusk to Dawn Relay + Ultra 2026

Bonneville Speedway Road, Wendover, UT

50 Mile

Avg 84° / 59°·4,297 ft city elevation

Avg 84° / 59°4,297 ft city elevation

Sep

5–6

Sat–Sun

Ultra

Tuscazoar Endurance Race (100 miler) - Big(gerstaff) Miles for a Big(gerstaff) 40th Birthday Celebration!!

6066 Boy Scout Road, Dover, OH

100 Mile

Avg 80° / 56°·909 ft city elevation

Avg 80° / 56°909 ft city elevation

Sep

10–13

Thu–Sun

Running

Old Forge Marathon Weekend - Ultra, Marathon, Half Marathon, 10K, 5K, Kayak, Bike

George T Hiltebrant Recreation Center, Old Forge, NY

5K · 10K · Half Marathon · Marathon · 50K · 50 Mile · Ultra · Under 25 mi · Sprint

Avg 70° / 48°·1,881 ft city elevation

Avg 70° / 48°1,881 ft city elevation

Sep

11–12

Fri–Sat

Triathlon

Smith Mountain Lake Ultra Triathlon

1235 State Park Road, Huddleston, VA

100 Mile · Ironman

Avg 81° / 61°·837 ft city elevation

Avg 81° / 61°837 ft city elevation

Sep

Sat

Running

The Last Boyscout

Ferne Clyffe Dam, Goreville, IL

4 Mile

Avg 83° / 58°·665 ft city elevation

Avg 83° / 58°665 ft city elevation

Sep

Sat

Running

Germantown 50k and 50k Relay (2026)

7013 Boomershine Rd, Germantown, OH

50K

Avg 80° / 55°·718 ft city elevation

Avg 80° / 55°718 ft city elevation

Sep

Sat

Running

Musser Madness endurance race

Hart Scout Reservation, 1425 Camp Rd, Pennsburg, PA

2 Mile / 3K · 10K

Avg 78° / 55°·332 ft city elevation

Avg 78° / 55°332 ft city elevation

Sep

Sun

Ultra

Never Forget 9:11 Endurance

701 W Poinsett St, Greer, SC

Avg 84° / 64°·970 ft city elevation

Avg 84° / 64°970 ft city elevation

Sep

Sun

Ultra

Saddle2Surf

2191 Fifth Street, Norco, CA

50K · 50 Mile

Avg 94° / 61°·628 ft city elevation

Avg 94° / 61°628 ft city elevation

Sep

Sat

Running

Pilot Mountain to Hanging Rock Ultra

1110 Flinchum Rd, Danbury, NC

50K · 50 Mile

Avg 79° / 59°·934 ft city elevation

Avg 79° / 59°934 ft city elevation

Sep

Sat

Running

Adventure Trail Ultras

7234 Old Forest Rd, Corydon, IN

50K · 50 Mile

Avg 81° / 55°·694 ft city elevation

Avg 81° / 55°694 ft city elevation

Sep

19–20

Sat–Sun

Running

Paris Texas Marathon

2025 S Collegiate Dr, Paris, TX

5K · 10K · Half Marathon · Marathon · 50K · 100K

Avg 88° / 65°·585 ft city elevation

Avg 88° / 65°585 ft city elevation

Sep

Sun

Ultra

River Driver 50 Miler

10 Prince Street, Lincoln, ME

50 Mile

Avg 68° / 46°·435 ft city elevation

Avg 68° / 46°435 ft city elevation

Sep

25–27

Fri–Sun

Running

Red Feather Trail Jamboree

2331 County Rd 68C, Red Feather Lakes, CO

Half Marathon · 50K · 50 Mile · Ultra

Avg 65° / 35°·9,241 ft city elevation

Avg 65° / 35°9,241 ft city elevation

Sep

Sat

Running

Sasquatch Trail Run + Last One Standing

29409 170th St, Detroit Lakes, MN

4 Mile

Avg 65° / 42°·1,370 ft city elevation

Avg 65° / 42°1,370 ft city elevation

Sep

Sat

Ultra

JP's Backyard Ultra/Hike, The Final Edition

2201 Imola Avenue, Napa, CA

Ultra

Avg 83° / 52°·140 ft city elevation

Avg 83° / 52°140 ft city elevation

Sep

Sat

Running

West Line Winder

402 E Main St, Buena Vista, CO

50K

Avg 71° / 36°·8,017 ft city elevation

Avg 71° / 36°8,017 ft city elevation

Sep

Sat

Running

KROP - Kaizen Rite of Passage

19679 S 550 Rd, Tahlequah, OK

4 Mile · 8 Mile · 50K

Avg 82° / 57°·817 ft city elevation

Avg 82° / 57°817 ft city elevation

Sep

26–27

Sat–Sun

Running

Sangre de Cristo Trail Festival

Grape Creek Trailhead (Almost), Westcliffe, CO

8 Mile · 50K · 50 Mile · 100K · Ultra

Avg 69° / 33°·8,080 ft city elevation

Avg 69° / 33°8,080 ft city elevation

Sep

26–27

Sat–Sun

Ultra

2026 Hinson Lake 24 Hour Ultra Classic

152 Hinson Lake Road, Rockingham, NC

Avg 82° / 60°·284 ft city elevation

Avg 82° / 60°284 ft city elevation

Sep

Sun

Ultra

Sawatch Ascent

Co Rd 321, Nathrop, CO

50K

Avg 70° / 36°·8,048 ft city elevation

Avg 70° / 36°8,048 ft city elevation

October 2026 Ultra Races

47 upcoming Ultra races in October.

Oct

1–4

Thu–Sun

Ultra

Iron Hike - Fall Answer the Bell Ultra Trail Marathon - Full (Backyard Ultra Format) - 100+ Miles | 50,400' Elevation | 84-Hour | Run, Hike or Walk

Mohawk Mountain Ski Area, Cornwall, CT

100K

Avg 70° / 44°·674 ft city elevation

Avg 70° / 44°674 ft city elevation

Oct

1–4

Thu–Sun

Ultra

Iron Hike - Fall Everest / 29029 Everesting Ultra Trail Marathon - 61+ Miles | 29,029'+ Elevation | 72-Hour | Run, Hike or Walk

Mohawk Mountain Ski Area, Cornwall, CT

100K

Avg 70° / 44°·674 ft city elevation

Avg 70° / 44°674 ft city elevation

Oct

1–4

Thu–Sun

Ultra

Iron Hike - Fall Everest / 29029 Everesting Ultra Trail Marathon Relay - 61+ Miles | 29,029'+ Elevation | 72-Hour | Run, Hike or Walk

Mohawk Mountain Ski Area, Cornwall, CT

100K

Avg 70° / 44°·674 ft city elevation

Avg 70° / 44°674 ft city elevation

Oct

1–4

Thu–Sun

Ultra

Iron Hike - Fall Olympus Mons Ultra Trail Marathon - powered by Skratch Labs ® - 152+ Miles | 72,590' Elevation | 84-Hour | Run, Hike or Walk

Mohawk Mountain Ski Area, Cornwall, CT

Ultra

Avg 70° / 44°·674 ft city elevation

Avg 70° / 44°674 ft city elevation

Oct

1–4

Thu–Sun

Ultra

Iron Hike - Fall Olympus Mons Ultra Trail Marathon Relay - powered by Skratch Labs ® - 152+ Miles | 72,590' Elevation | 84-Hour | Run, Hike or Walk

Mohawk Mountain Ski Area, Cornwall, CT

Ultra

Avg 70° / 44°·674 ft city elevation

Avg 70° / 44°674 ft city elevation

Oct

1–4

Thu–Sun

Running

IronHike Mohawk Mountain Fall 2026

46 Great Hollow Road, Mohawk Mtn Ski Area, Cornwall, CT

100K · 100 Mile · Ultra

Avg 70° / 44°

Oct

2–4

Fri–Sun

Ultra

Iron Hike - Fall Denali Ultra Trail Marathon - 43+ Miles | 20,825' Elevation | 48-Hour | Run, Hike or Walk

Mohawk Mountain Ski Area, Cornwall, CT

Ultra

Avg 69° / 43°·674 ft city elevation

Avg 69° / 43°674 ft city elevation

Oct

2–4

Fri–Sun

Ultra

Iron Hike - Fall Denali Ultra Trail Marathon Relay - 43+ Miles | 20,825' Elevation | 48-Hour | Run, Hike or Walk

Mohawk Mountain Ski Area, Cornwall, CT

Ultra

Avg 69° / 43°·674 ft city elevation

Avg 69° / 43°674 ft city elevation

Oct

Sat

Running

Night Owl 5k, 10k and the 6 hour shuffle

Lake Elmo Park Reserve 1515 Keats Ave N, Lake Elmo, MN

5K · 10K

Avg 64° / 44°·934 ft city elevation

Avg 64° / 44°934 ft city elevation

Oct

Sat

Ultra

MIDNIGHT RECON

Fayetteville Farmer's Market & Historic Square, Fayetteville, AR

Ultra

Avg 76° / 53°·1,246 ft city elevation

Avg 76° / 53°1,246 ft city elevation

Oct

3–4

Sat–Sun

Ultra

Bear Lake Ultra

3409 5 Lakes Rd, Lapeer, MI

Avg 67° / 44°·835 ft city elevation

Avg 67° / 44°835 ft city elevation

Oct

3–4

Sat–Sun

Ultra

Iron Hike - Fall Answer the Bell Ultra Trail Marathon - Basic (Backyard Ultra Format) - 28+ Miles | 14,400'+ Elevation | 24-Hour | Run, Hike or Walk

Mohawk Mountain Ski Area, Cornwall, CT

100K

Avg 69° / 43°·674 ft city elevation

Avg 69° / 43°674 ft city elevation

Oct

3–4

Sat–Sun

Ultra

Iron Hike - Fall Double Kuwohi Trail Marathon Plus - 28+ Miles | 13,685' Elevation | 24-Hour | Run, Hike or Walk

Mohawk Mountain Ski Area, Cornwall, CT

Avg 69° / 43°·674 ft city elevation

Avg 69° / 43°674 ft city elevation

Oct

3–4

Sat–Sun

Ultra

Iron Hike - Fall Double Kuwohi Trail Marathon Plus Relay - 28+ Miles | 13,685' Elevation | 24-Hour | Run, Hike or Walk

Mohawk Mountain Ski Area, Cornwall, CT

Avg 69° / 43°·674 ft city elevation

Avg 69° / 43°674 ft city elevation

Oct

Sun

Running

Kettle Cooker Trail Race

50 W Christine Road, Nottingham, PA

8K / 5 Mile · 50K

Avg 69° / 49°·447 ft city elevation

Avg 69° / 49°447 ft city elevation

Oct

Sun

Running

Heritage 50k & Half-Marathon

Heritage Park, Adrian, MI

Half Marathon · 50K

Avg 69° / 44°·756 ft city elevation

Avg 69° / 44°756 ft city elevation

Oct

9–11

Fri–Sun

Ultra

Indiana Trail 100

2355 E 75 S, Albion, IN

50 Mile · 100 Mile · Ultra

Avg 66° / 44°·898 ft city elevation

Avg 66° / 44°898 ft city elevation

Oct

Sat

Ultra

The Devils Race Track Backyard Ultra

10130 Spragins Hollow Rd NW, Huntsville, AL

Avg 78° / 54°·624 ft city elevation

Avg 78° / 54°624 ft city elevation

Oct

Sat

Running

Ruth Anderson Memorial Endurance Run

Lake Merced Blvd Parking Lot (North), San Francisco, CA

50K · 50 Mile

Avg 71° / 55°·43 ft city elevation

Avg 71° / 55°43 ft city elevation

Oct

Sat

Running

Suffer Better 10th Annual Fall Trail Runs

Staunton State Park, Pine, CO

50K

Avg 61° / 26°·8,109 ft city elevation

Avg 61° / 26°8,109 ft city elevation

Oct

Sat

Running

Le Grizz Ultramarathon & Relay

Big Creek Outdoor Education Center, Polebridge, MT

5K · 15K · 50 Mile

Avg 58° / 27°·4,014 ft city elevation

Avg 58° / 27°4,014 ft city elevation

Oct

Sat

Running

CanLake Ultras

Finger Lakes Community College, Canandaigua, NY

50K · 50 Mile

Avg 63° / 45°·775 ft city elevation

Avg 63° / 45°775 ft city elevation

Oct

Sat

Ultra

Ridge Creek Run Club 12 Hour Ultra

3018 Ridge Creek Drive, Dinuba, CA

Avg 80° / 54°·329 ft city elevation

Avg 80° / 54°329 ft city elevation

Oct

Sat

Ultra

Toughest Last Man Standing Utah (Tushar Mountains)

150 S W Village Cir, Beaver, UT

Avg 88° / 69°·5,967 ft city elevation

Avg 88° / 69°5,967 ft city elevation

Oct

Sat

Swimming

Unity Beach Swim - Aquathlon & Run Training Races (Oct 10th 2026)

15100 Gulf Blvd Maderia Beach, Saint Petersburg, FL

Avg 86° / 72°·24 ft city elevation

Avg 86° / 72°24 ft city elevation

Oct

10–11

Sat–Sun

Ultra

Anderson Lake Backyard Ultra

Anderson Lake West State Forest Campground, Gwinn, MI

100 Mile

Avg 56° / 37°·1,153 ft city elevation

Avg 56° / 37°1,153 ft city elevation

Oct

10–11

Sat–Sun

Running

Wolverine State 100

101 E Lake St, Petoskey, MI

50K · 100K · 100 Mile

Avg 59° / 41°·839 ft city elevation

Avg 59° / 41°839 ft city elevation