USARunningTrail108K · 108 km / 67.1 mi32K · 32 km / 19.9 mi55K · 55 km / 34.2 mi

River of No Return Endurance Runs

Challis, Idaho · USA

When is the next River of No Return Endurance Runs?

Sat, 19 Jun 2027

3 distances · see start times below

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Time limits and cut-offs

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32K · 2027-06-19: Not yet verified for this edition. Check the official race instructions.
55K · 2027-06-19: Not yet verified for this edition. Check the official race instructions.
108K · 2027-06-19: Not yet verified for this edition. Check the official race instructions.

About River of No Return Endurance Runs

River of No Return Endurance Runs is a running event in Challis, Idaho, United States. Recorded disciplines include 108K, 32K, 55K. The listed surface is trail. The listed organiser is Pulse Running. The next listed date is Saturday, 19 June 2027. Check the organiser's information for entry and race-day arrangements.

Dates, starts & entry

Times are local to the race. Select the entry route for your distance.

32K · 32 km / 19.9 mi
Sat, 19 Jun 2027
Start time not yet verified
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River of No Return Endurance Runs · 32K · 32 km / 19.9 mi
2027-06-19 · Date-only reminder
Venue / race area: Challis, Idaho, United States
Race website
Date-only reminder: start time to be confirmed.
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River of No Return Endurance Runs · 32K · 32 km / 19.9 mi
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Date and distance list (108K, 55K, 32K) confirmed on the organiser's UltraSignup registration page for the 2027 edition (checked 2026-11-09). Local time America/Boise.
Edition source
55K · 55 km / 34.2 mi
Sat, 19 Jun 2027
Start time not yet verified
Confirm date and entry availability with the organiser
Entry details
Add to calendar
River of No Return Endurance Runs · 55K · 55 km / 34.2 mi
2027-06-19 · Date-only reminder
Venue / race area: Challis, Idaho, United States
Race website
Date-only reminder: start time to be confirmed.
Google Calendar Outlook.com Microsoft 365 Apple Calendar
Google and Outlook open a prepared event for you to save. Apple uses your private AthRecs race subscription. Download a one-off file only if you prefer to import it yourself.
Share
Share this race
River of No Return Endurance Runs · 55K · 55 km / 34.2 mi
WhatsApp Facebook X Telegram Email
Choose where to share, then select who to send it to.
Date and distance list (108K, 55K, 32K) confirmed on the organiser's UltraSignup registration page for the 2027 edition (checked 2026-11-09). Local time America/Boise.
Edition source
108K · 108 km / 67.1 mi
Sat, 19 Jun 2027
Start time not yet verified
Confirm date and entry availability with the organiser
Entry details
Add to calendar
River of No Return Endurance Runs · 108K · 108 km / 67.1 mi
2027-06-19 · Date-only reminder
Venue / race area: Challis, Idaho, United States
Race website
Date-only reminder: start time to be confirmed.
Google Calendar Outlook.com Microsoft 365 Apple Calendar
Google and Outlook open a prepared event for you to save. Apple uses your private AthRecs race subscription. Download a one-off file only if you prefer to import it yourself.
Share
Share this race
River of No Return Endurance Runs · 108K · 108 km / 67.1 mi
WhatsApp Facebook X Telegram Email
Choose where to share, then select who to send it to.
Date and distance list (108K, 55K, 32K) confirmed on the organiser's UltraSignup registration page for the 2027 edition (checked 2026-11-09). Local time America/Boise.
Edition source

Location & race day

Listed venue / area

Challis, IdahoUSA

Find this location on a map

Confirm the exact start line, parking and arrival instructions with the organiser. A listed town or postcode may cover a wider area.

About the race

River of No Return Endurance Runs is listed on UltraSignup for 2027 near Challis, Idaho, with the following distances or formats: 108K, 55K, 32K. Organised by Pulse Running.

Surface:: Trail
Organiser:: Pulse Running

Race website

Entry options for

Ways to enter

Compare the listed booking routes. Verified links show when they were checked.

Sat, 19 Jun 2027

Official race entry

Official entry

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Recorded Mon, 9 Nov 2026

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Race questions

When is the next event?

The next listed date for River of No Return Endurance Runs is 19 June 2027.

Where is it held?

River of No Return Endurance Runs is listed in Challis, Idaho, United States. Check the event's race-day instructions for the exact start location.

Which distances are listed?

The programme listed for 19 June 2027 includes 32K, 55K, 108K.

What time does it start?

Listed starts for 19 June 2027: 32K: start time not yet verified; 55K: start time not yet verified; 108K: start time not yet verified. Times are local to the race venue. Follow the start or wave assigned to your entry.