Dunns Ultra Marathon Badasses - D.U.M.B.
Nov 7pomona park, FL100 mi, 100K +3
Also 100 miles, 119 mi from Tampa Bay 100, registration open
At a glance
- Date
- Nov 14, 2026
- Location
- Tampa, Florida
- Distances
- 100 mi
- Aid stations
- 5, 5 with crew access
- Registration
- Registration closes Nov 12, 2026, via ultrasignup.com
- Official site
- facebook.com
- Listed from
- UltraSignup
- Last checked
- Oct 4, 2026
Plan this race for free
5 aid stations are already loaded. Add cutoffs, pacing and the timeline your crew follows. Crew invites and race-day updates come with a Race Pass.
Build my planAbout this race
Point-to-point urban ultramarathon that starts in Ybor City and winds through Tampa, ultimately reaching Safety Harbor, Dunedin, Clearwater, Gulf Blvd, and ending in St. Petersburg. The course is mostly flat with some bridges, featuring approximately 1,165 feet of elevation gain.
Key dates
Registration closes
Nov 12, 2026
Race day
Nov 14, 2026
Pricing
Current price
$210
Registration
Email me updates about Tampa Bay 100
Registration openings and major changes, like a new date or a cancellation.
Aid stations
5| Station | Distance | Crew | Drop bags | Cutoff | Supplies |
|---|---|---|---|---|---|
Courtney Campbell First dedicated aid station on the Courtney Campbell Causeway | -- | -- | SodaPicklesGummy BearsChips+6 | ||
Cooper's Bayou | -- | -- | SodaPicklesGummy BearsChips+6 | ||
Dunedin Operated from the home of a local runner. Drop bags available between 50 and 60 miles. Hard cutoff at 19th hour. | 56.00 miles | 19:00 | SodaPicklesGummy BearsChips+6 | ||
Indian Rocks Beach Located at the Gulf Breeze Inn. Formerly called the Gulf Blvd AS. Full kitchens and nice bathrooms available. | -- | -- | SodaPicklesGummy BearsChips+6 | ||
Gulfport Drop bags available closer to 80 miles. Hard cutoff at 29th hour. | 82.00 miles | 29:00 | SodaPicklesGummy BearsChips+6 |
Entry transfers
Can't race, or need an entry? Post it here so nobody has to ask if it's still available.
Similar races
Festivus 100/50 Miler Trail Run
Dec 5middleburg, FL100 mi, 50 mi +1
Also 100 miles, 153 mi from Tampa Bay 100, registration open
Uwharrie 100 Mile and 100K Trail Run
Oct 17Troy, NC100 mi, 100K
Also 100 miles, 4 weeks before Tampa Bay 100, registration open
Straight-line distance
More 100 Mile Races in Florida
All 100 Mile Races in FloridaDunns Ultra Marathon Badasses - D.U.M.B.
Nov 7pomona park, FL100 mi, 100K +3
Festivus 100/50 Miler Trail Run
Dec 5middleburg, FL100 mi, 50 mi +1
Long Haul 100
Jan 16, 2027Lakeland, FL100 mi
Forgotten Florida
Jan 30, 2027Christmas, FL100 mi, 50 mi
Space Pirate 100
Feb 20, 2027Port Canaveral, FL100 mi, 50 mi +1
Cow Ford 100 / 50 Miler
Mar 20, 2027JACKSONVILLE, FL100 mi, 50 mi
Skunk Ape 100 Mile Endurance Run
Apr 24, 2027Ocala, FL100 mi, 50 mi
Vero Beach Octopus Ultra
Jul 10, 2027Vero Beach, FL100 mi, 100K +2
Wildcat Ultras
Sep 4, 2027Pensacola, FL100 mi, 100K +3
Miami 100
Sep 25, 2027Miami, FL100 mi, 50K
Races Near Tampa
All races near TampaTurkey Trails - Tampa
Nov 8Tampa, FLHalf Marathon, 10K +2
RunFluent Christmas
Dec 12Lutz, FL7 hr, Half Marathon +1
Unity Beach Swim - Aquathlon & Run Training Races (Oct 10th 2026)
Oct 10Saint Petersburg, FL10K, 5K +5
Gopher Weedon Trail Run
Oct 24Saint Petersburg, FL8K
Unity Beach Swim - Aquathlon & Run Training Races (November)
Nov 7Saint Petersburg, FL10K, 5K +5
Pinellas Trail Challenge
Sep 4, 2027St. Petersburg, FL46 mi
InHouse Ultra
Feb 20, 2027St Petersburg, FLBackyard Ultra
Funest 50k @ Carter Rd
Apr 17, 2027Mulberry, FL50K, 30K +1
Endure Better Backyard Ultra
Feb 20, 2027Lakeland, FLBackyard Ultra
Colt 45 Trail Run
Nov 21Lakeland, FL60 mi, 45 mi +2
All Day at Holloway
Feb 27, 2027Lakeland, FL50K, 30K +1
Long Haul Course Preview
Dec 5Lakeland, FLTraining Run
November Races Nearby
All November racesAzalea 12/24 Hour
Nov 7Palatka, FL24 hr, 50 mi +2
Buddy the Bull Stampede
Nov 7Arcadia, FL20K, 15K +1
The Florida Run @ Lake Louisa State Park
Nov 7Clermont, FLHalf Marathon, 10K +1
Turkey Trails- Orlando
Nov 7Orlando, FLHalf Marathon, 10K +2
Across Florida 200
Nov 10St. Augustine Beach, FL200 mi
Race planning
Plan Tampa Bay 100 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 Tampa Bay 100?
Claim this race to manage registration, volunteers, and race day.