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Saturday - September 19th, 2026

Register Now
https://www.aravaiparunning.com/white-mountain-endurance/

Kilkenny Ridge Race

50 Mile | 25 Mile | 25K

South Pond Recreational Area 
Stark, New Hampshire

High above the bustle of the Whites lies Kilkenny Ridge — a long, lonely spine of wilderness where the trail narrows, the forest thickens, and the mountains ask for your full attention.

Our 25- and 50-mile distances follow the Kilkenny Ridge Trail end-to-end, gaining roughly 7,500 ft per direction on raw ridgelines, remote valleys, and soul-stirring viewpoints.

It’s unmarked, unmanned, and unapologetically wild. If you want a race that feels like a true mountain crossing, this is it.

*Distances may vary slightly each year due to permitting.

Start Times

Saturday, September 19
50 Mile  - 5:00 am
25 Mile - 7:00 am
25K - 8:00 am

Bib Pickup

South Pond Recreational Area 
Stark, New Hampshire
NH-110, Stark, NH 03582
Friday, September 18
4:00pm - 6:00pm
September 19
4:00am - 7:00am

Volunteer

We need help to make Kilkenny Ridge Race possible. Volunteer perks include Aravaipa race credits and race swag!
Volunteer Now

Qualifications

We require that you have finished a 20 mile challenging TRAIL race for the 25 miler or a 50k challenging TRAIL race in order to enter the 50 miler.

Live Tracking

Follow the Kilkenny Ridge Race with live split points throughout race weekend.
Aravaipa Live
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Register Now

Registration closes: Mon, Sep 14 @ 11:59PM ET

Race Registration

  Until 2/28 Until 7/14 Until 9/14
50 Mile $175 $190 $205
25 Mile $140 $155

$170

25K $115 $125

$135

*Race shirts guaranteed on race day if ordered by 8/18. Registration also available at Packet Pick-up depending on availability.
NOTE: Pricing does not include taxes or Ultrasignup fees. 
Withdrawal Policy

Course Information

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Key Stats
Date |Saturday, September 20th, 2025

Start Time | 5:00 am

Time Limit | 24 Hours

Distance | 45 Miles

Total Elevation Gain | 15,000 feet

Max Elevation | 4,143 feet

Women's Course Record | 13:09:44 - Brianna Russell (2022)

Men's Course Record | 10:58:45 - Peter Howe (2019)

Course Map
CalTopo Course  Map

50 Mile Event Details

Wild & Wooly Race Film

Results & Photos


Thank you to our sponsors!

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The Cohos Trail Association (TCTA)