Spirit of Syllamo
Dec 12Norfork, AR100 mi, 38 mi
38 mi, 14 weeks before race day, 143 mi away, registration open
At a glance
- Date
- Mar 19–20, 2027
- Location
- Cordova, Tennessee
- Distances
- 100 mi, 107K
- Aid stations
- 2, 1 with crew access
- Registration
- Closes Nov 2, 2026, via ultrasignup.com
Listed from UltraSignup. Checked Oct 19, 2026.
Plan this race for free
2 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
An ultra endurance race featuring multiple distances from 25K to 300 miles on a 33.4-mile loop through Shelby Farms Park with paved paths and single-track trails through lakes and wooded landscapes with local wildlife including deer and buffalo.
Key dates
Registration closes
Nov 2, 2026
Race day
Mar 19, 2027
Pricing
100 Miler
Registration
$330
100K
Registration
$215
50K
Registration
$115
25K
Registration
$100
Email me updates about Viper 100
Registration openings and major changes, like a new date or a cancellation.
Aid stations
2| Station | Distance | Crew | Drop bags | Cutoff | Supplies |
|---|---|---|---|---|---|
Bridge Aid Station Located at approximately miles 4.5 and 9.5 each loop. Crew access not permitted; crew may only access runners at the Start/Finish area. Specific per-loop mile markers vary by distance. | -- | -- | TailwindwaterGatoradeCoca-Cola+15 | ||
Start/Finish Aid Station Located at mile 14 of each loop. Primary hub for crew, drop bags, personal aid station, and canopy tents. Lasagna served here during evening/overnight hours. | -- | -- | TailwindwaterGatoradeCoca-Cola+16 |
Entry transfers
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Tune-up races
Straight-line distance
Similar races
Creek Trail Crusher
Nov 14Paragould, AR100.01 mi, 50 mi +1
Also 100 miles, 74 mi from Viper 100, registration open
Spirit of Syllamo
Dec 12Norfork, AR100 mi, 38 mi
Also 100 miles, 143 mi from Viper 100, registration open
The Next Loop | Pinnacle Mountain
Nov 7Roland, AR100 mi, 100K +2
Also 100 miles, 151 mi from Viper 100, registration open
Straight-line distance
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March Races Nearby
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Race planning
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