Oct 10, 2026 · 7:00 AM · Bastrop, TX
Autumn Harvest 50K • 20-Miler • 10-Miler • 5-Miler • Full • Half • 10K • 5K • Big Bastrop Backyard Ultra (Last Runner & Last Rucker Standing)
5K4.17M10KHalf MarathonMarathonUltra
- Price
- $64.59-$175.90
Ultras in October — Page 2
Every upcoming Ultra race we know about in October. Where a detail isn't confirmed, we mark it unknown rather than guessing.
Race results
Showing 61–120 of 139 races. Use search and filters from page 1.
Oct 10, 2026 · 7:00 AM · Glen Rose, TX
The Mammoth Trail Run 2026 - 100K / 50K / 25K / 10K / 5K and Mighty Mammoth 1K Kids Dash
5K10KUltra
- Price
- Free-$186.50
Oct 10, 2026 · 9:00 AM · Gwinn, MI
Anderson Lake Backyard Ultra
Ultra
- Price
- $80.50
- Field size
- 65 · based on the organizer's entry cap
Oct 10, 2026 · 9:00 AM · Paducah, KY
Hills & Hollers for Habitat
10MUltra
- Price
- Price on registration site
Oct 10, 2026 · 9:00 AM · Bradenton, FL
Chasing the Sun Endurance Run
4.35MHalf MarathonMarathonUltra
- Price
- $40.21-$159.99
Oct 10, 2026 · 7:30 AM · Oklahoma City, OK
OKLAHOMA CITY TRAIL RUNNING FESTIVAL
Ultra
- Price
- $48.70-$133.50
- Field size
- 156 · based on the organizer's entry cap
Oct 10, 2026 · 7:00 AM · Polebridge, MT
Le Grizz Ultramarathon & Relay
5K15KUltra2,300 ft gain
- Price
- $38.53-$160.20
- Field size
- 200 · based on the organizer's entry cap
Oct 10, 2026 · 7:00 AM · Canandaigua, NY
CanLake Ultras
15MUltraflat and fast
- Price
- Free-$421
- Field size
- 180 · based on the organizer's entry cap
Oct 10, 2026 · 7:30 AM · Pine, CO
Suffer Better 10th Annual Fall Trail Runs
5KUltra
- Price
- $27.50-$96.40
- Field size
- 198 · based on the organizer's entry cap
Oct 10, 2026 · 7:00 AM · Somerville, TX
Trailway Trail Race
1M5K10KHalf MarathonMarathonUltra
- Price
- $17.22-$131.70
Oct 11, 2026 · 7:00 AM · Houston, TX
2026 HARRA Warm-Up Series Bundles
MarathonUltra
- Price
- $223.60-$300.25
Oct 11, 2026 · 8:30 AM · Mount Airy, MD
Rick O'Donnell Memorial 5 Mile Trail Run and Ultra Challenge
Ultra
- Price
- $45-$70
Oct 16, 2026 · 5:30 PM · Glencoe, KY
Little Rooster Run
5KUltraWalker-friendly · per organizer
- Price
- $22.20-$138.80
Oct 16, 2026 · 3:00 PM · Pelham, AL
Altra x Running Wild Trail Camp
Ultra
- Price
- Price on registration site
Oct 16, 2026 · 4:30 PM · Silverton, OR
Silver Falls Trail Runs
5KHalf MarathonMarathonUltra
- Price
- $43.40-$128.20
- Field size
- 375 · based on the organizer's entry cap
Oct 17, 2026 · 8:00 AM · Williamsburg, VA
Bikes & Beers Williamsburg
Ultra
- Price
- Price on registration site
Oct 17, 2026 · 7:30 AM · Emporium, PA
Sinnemahone Ultra Trail Run Sponsored by Keystone Rural Health Consortia
Ultra
- Price
- $43.40-$96.40
Oct 17, 2026 · 7:00 AM · Burnet, TX
Inks Lake Trail Run/Ruck
1M5K10KHalf MarathonMarathonUltra
- Price
- $13.05-$139.65
Oct 17, 2026 · 8:00 AM · Nashville, IN
Tecumseh Trail Challenge
Half MarathonMarathonUltra
- Price
- $48.70-$112.30
- Field size
- 552 · based on the organizer's entry cap
Oct 17, 2026 · 7:00 AM · Galveston, TX
Galveston Ultra Trail
1M5K10KHalf MarathonUltra
- Price
- Free-$122.90
Oct 17, 2026 · 10:00 AM · Clarendon, TX
Six Pack Outdoors: Goodnight's Grind
MarathonUltra
- Price
- Price on registration site
Oct 17, 2026 · 5:00 AM · Summerville, SC
Ville to Ville Coastal Relay
Ultra
- Price
- Free-$814.75
- Field size
- 211 · based on the organizer's entry cap
Oct 17, 2026 · 8:00 AM · Hickory, NC
HKY 100 Mile Ultra Trail Race
Ultra
- Price
- $133.50
- Field size
- 396 · based on the organizer's entry cap
Oct 17, 2026 · 9:00 AM · Columbus, IN
OUTLAST INDIANAPOLIS
Ultra
- Price
- $107-$149.40
- Field size
- 450 · based on the organizer's entry cap
Oct 17, 2026 · 7:45 AM · Salado, TX
Barrow Volksride 2026
Ultra2,500 ft gain
- Price
- Price on registration site
Oct 17, 2026 · 7:00 AM · San Diego, CA
Lake Hodges Trail Festival
1M5K10K15K15.6M23MUltra
- Price
- $16.90-$154.70
- Field size
- 40 · based on the organizer's entry cap
Oct 17, 2026 · 7:30 AM · Clermont, FL
AdventHealth Great Floridian Multisport Festival
5K3.35M8.45M15K11.55M12.3M25.35MUltra
- Price
- $52.94-$80.50
Oct 17, 2026 · 8:45 AM · Anderson, SC
Sadlers Creek Stumble (32 Hour - 26.2 - 13.1 - 10k)
10KHalf MarathonMarathonUltra380 ft gain · rolling hills
- Price
- $54-$133.50
Oct 17, 2026 · 8:45 AM · Titusville, NJ
Delaware River Loop Series
Ultra
- Price
- $16.90
- Field size
- 100 · based on the organizer's entry cap
Oct 17, 2026 · 7:00 AM · Santa Barbara, CA
Ride Santa Barbara 100
Ultra2,500 ft gain
- Price
- Price on registration site
Oct 18, 2026 · 7:00 AM · Missoula, MT
CITY TO SKY
Ultra
- Price
- $154.91-$165.49
- Field size
- 300 · based on the organizer's entry cap
Oct 23, 2026 · 7:00 AM · Jamestown, TN
No Business 100
Ultra14,500 ft gain
- Price
- $447.20
- Field size
- 315 · based on the organizer's entry cap
Oct 24, 2026 · 7:00 AM · Earlysville, VA
Andy's Backyard Ultra
Ultra
- Price
- $107
- Field size
- 90 · based on the organizer's entry cap
Oct 24, 2026 · 7:00 AM · Park City, KY
Mammoth Cave 50K/25K
Ultra
- Price
- $80.50-$101.70
- Field size
- 150 · based on the organizer's entry cap
Oct 24, 2026 · 10:00 AM · Hueston Woods State Park, OH
Hueston Woods Trail Race
5K10K15KHalf MarathonUltraCertified course · per organizer
- Price
- $43.40-$107
Oct 24, 2026 · 7:35 AM · Marthasville, MO
The EQUALIZER 50K and 100K Gravel Race
Ultra
- Price
- Price on registration site
Oct 24, 2026 · 9:00 AM · Marble Falls, TX
Fields of Gold 50K • Marathon • Half Marathon • 12 Hour • 1 Hour • 10K • 5K
5K10KHalf MarathonMarathonUltrarolling hills
- Price
- $53.99-$180.14
Oct 24, 2026 · 10:00 AM · College Corner, OH
Mad Maple Trail Races @ Hueston Woods
5K10KHalf MarathonUltraCertified course · per organizer
- Price
- $43.40-$75.20