The Next Loop 40M/50M | Lake Carl Blackwell
Nov 21Stillwater, OK50 mi, 40 mi
Also 50 miles, by EverFurther Events, registration open
Listed from UltraSignup. Checked Oct 19, 2026.
1 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 planA gritty, no-nonsense test of pacing and patience on a scenic 3.1-mile (5K) loop trail in Wrentham, MA. This is a continuous 50-mile trail race with a 12-hour cutoff.
Registration closes
Oct 9, 2026
Race day
Oct 31, 2026
40 Mile Challenge
Registration
$90
50 Mile Challenge
Registration
$90
Registration openings and major changes, like a new date or a cancellation.
| Station | Distance | Crew | Drop bags | Cutoff | Supplies |
|---|---|---|---|---|---|
Main aid station The same fully stocked start/finish aid station is available every 5K loop. | 5.00 km | -- | -- |
Can't race, or need an entry? Post it here so nobody has to ask if it's still available.
Nov 21Stillwater, OK50 mi, 40 mi
Also 50 miles, by EverFurther Events, registration open
Nov 7Roland, AR50 mi, 40 mi
Also 50 miles, similar trail technicality to The Next Loop Endurance Series | New England, registration open
Nov 7Montgomery Village, MD50 mi
Also 50 miles, similar trail technicality to The Next Loop Endurance Series | New England, registration open
Nov 7Fruita, CO50 mi, 40 mi +3
Also 50 miles, similar trail technicality to The Next Loop Endurance Series | New England, registration open
Oct 24Sutton, MABackyard Ultra
Oct 24Wrentham, MA5K
Oct 24Edgartown, MA
Oct 24Hingham, MA50K, 10 mi
Oct 25Tyngsboro, MA3K
Oct 25Dover, MA8.6 mi, 5.6 mi +2
Oct 25Sudbury, MA6 hr, 30K +1
Oct 25Harvard, MA5K, 1 mi
Oct 25Berkley, MA5K, 3 mi
Nov 7Hingham, MA8 hr, 4 mi
Nov 8Upton, MAHalf Marathon, 10.5K
Dec 12Springfield, MA50K
Nov 1Cumberland, RI5 mi, 5K
Nov 28Cumberland, RI5 mi, 5K
Dec 12Cumberland, RI4 hr, 5 mi +1
May 1, 2027East Thompson, CT200K, 100K
Oct 24Westerly, RI10 mi, 10K
Oct 24Modena, NY5K
Oct 25Garrison, NYHalf Marathon, 5K
Build your aid station plan, organize your crew, and dial in your nutrition strategy. Everything you need to finish strong.
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Claim this race to manage registration, volunteers, and race day.