Outback in the Ozarks 205 Mile Relay
Oct 9Eureka Springs, AR205 mi, 65 mi relay
100K, 8 weeks before race day, 61 mi away, registration open
100 mi100K50 mi50KRegistration open
Last Chance Ultra
Springfield, Missouri
- Entry from
- $80
- Days to go
- 60
At a glance
- Date
- Dec 5–6, 2026
- Location
- Springfield, Missouri
- Distances
- 100 mi, 100K, 50 mi, 50K
- Registration
- Registration open until Dec 5, 2026, via ultrasignup.com
- Official site
- heartlandracingco.com
- Listed from
- RunSignUp
- Last checked
- Oct 4, 2026
Plan this race for free
Aid stations, cutoffs and pacing in one plan, with the timeline your crew follows. Crew invites and race-day updates come with a Race Pass.
Build my planAbout this race
Join us for Year 5!
At the end of the year everyone needs a chance to get in some of those last miles or get that final race in and what better way to do it with some friends? Join us for the FIFTH ANNUAL Last Chance Ultra on December 5th & 6th in Springfield, MO to have a blast racing and throwing a party before the NEW YEAR!
Key dates
Registration opens
Jan 26, 2026
Tier 1 ends
Aug 1, 2026
Tier 2 ends
Nov 1, 2026
Registration closes
Dec 5, 2026
Race day
Dec 5, 2026
Tier 3 ends
Dec 5, 2026
Pricing
100 Mile
Tier 2, then $200 from Nov 1, 2026
$175
100k
Tier 2, then $175 from Nov 1, 2026
$150
50 Mile
Tier 2, then $140 from Nov 1, 2026
$125
50k
Tier 2, then $125 from Nov 1, 2026
$110
10 Mile
Tier 2, then $90 from Nov 1, 2026
$80
Email me updates about Last Chance Ultra
Registration openings and major changes, like a new date or a cancellation.
Entry transfers
Can't race, or need an entry? Post it here so nobody has to ask if it's still available.
Tune-up races
Straight-line distance
Similar races
Spirit of Syllamo
Dec 12Norfork, AR100 mi, 38 mi
Also 100 miles, 92 mi from Last Chance Ultra, registration open
Hare Mountain 100
Oct 23Hagarville, AR100 mi
Also 100 miles, 99 mi from Last Chance Ultra, registration open
Creek Trail Crusher
Nov 14Paragould, AR100.01 mi, 50 mi +1
Also 100 miles, 160 mi from Last Chance Ultra, registration open
Kansas Rails-to-Trails
Oct 24Ottawa, KS100 mi, 100K +4
Also 100 miles, 158 mi from Last Chance Ultra, registration open
Straight-line distance
More 100 Mile Races in Missouri
All 100 Mile Races in MissouriShow Me Your Free State Marathon and Ultra
Oct 24St. Joseph, MO100 mi, 50 mi +3
Ozark Trail 100 Mile Endurance Run
Oct 31Steelville, MO100 mi
The Next Loop Endurance Weekend | 01/01/27
Jan 1, 2027St. Louis, MO48 hr, 100 mi +3
The Shippey Endurance Runs
Jan 16, 2027High Ridge, MO100 mi, 100K +2
Iron Heart Ultra
Feb 13, 2027ST JAMES, MO100 mi, 100K +5
Races Near Springfield
Turkey Trails - Springfield
Nov 14Springfield, MOHalf Marathon, 10K +2
Bleak Midwinter Endurance Run
Jan 23, 2027Springfield, MO12 hr, 6 hr +2
Leaky Hourglass Ultra
Aug 28, 2027Half Way, MOBackyard Ultra
Outback in the Ozarks 205 Mile Relay
Oct 9Eureka Springs, AR205 mi, 65 mi relay
Lake of the Ozarks Endurance Runs
May 1, 2027Kaiser, MO25K
The Feral Hog Mountain Run
Oct 31NORFORK, AR
Sunset Mountain's Naked Mile - Snap Dragon Style
Oct 17Noel, MOHalf Marathon
Lion King Backyard Ultra
Oct 10Rolla, MOBackyard Ultra
Spirit of Syllamo
Dec 12Norfork, AR100 mi, 38 mi
Three Days of Syllamo
Mar 19, 2027Fifty-Six, AR94 mi, 50 mi +2
Hare Mountain 100
Oct 23Hagarville, AR100 mi
Last Person Standing by Flint Creek Endurance
May 1, 2027Gentry, ARBackyard Ultra
December Races Nearby
All December racesOllie's Ultra
Dec 4Chanute, KS48 hr, 36 hr +3
Mitchell's Mountain Infinity Loop - 3.14 mi Last Man Standing/5k/1k
Dec 5Fayetteville, ARBackyard Ultra, 5K +1
Race planning
Plan Last Chance Ultra with Crewable
Build your aid station plan, organize your crew, and dial in your nutrition strategy. Everything you need to finish strong.
Build my planAre you the race director for Last Chance Ultra?
Claim this race to manage registration, volunteers, and race day.