AC100 RaceBook
The official record and program of the Angeles Crest 100 Mile Endurance Run. Includes course and driving maps for runner and crew. 1986-2001 information.
American Ultrarunning Association
Membership details, race listing, USA National Ultra Team, description of the organization and related links.
Cascade Running Club
Hosts 100 mile, 50 Mile and 50K minimalist runs in Washington. Includes club information and race details.
Extreme Ultrarunning
Resources, links, and general information. Includes runners' profiles, calendar, photographs and race reports.
Hal Higdon: On The Run - Ultramarathon Training
While focusing on the Comrades Marathon, author Higdon provides a training plan useful for a wide range of ultras.
Kevin Sayers UltRunR Site
Resources and opinions on topics ranging from training and racing tips to equipment recommendations.
Marathon and Beyond
Published six times a year - website contains tables of content, sneak previews and ordering information.
New York Ultra Running
Contains details about races in the area, highlights, pictures, directions, and membership details.
North Texas Trail Runners
Information on trail running and ultra running in North Texas. Features calendar listings and a news/opinion section.
Sri Chinmoy Marathon Team International
Sponsor of multi-day races, including the world's longest certified race of 3,100 miles, triathlons, and many ultra events in more than 30 nations. Includes news, photos, race info…
Sri Chinmoy Marathon Team New York
Multi-day events, including an annual 3,100-mile race. Information on upcoming races and events, articles, and contact information.
St. Louis Ultrarunners Group
Provides club news and events, including registration materials.
Stan Jensen's Ultramarathon Guide
Provides general information on the sport, especially focusing on northern California. Includes information and statistics for the top races in the USA, as well as personal achieve…
Ultrafit Endurance Sports
Company that specializes in products designed for the endurance athlete.
Ultrarunners Organization
Includes descriptions and links to events, photos and contact information.
Will Brown's Umstead 100 Report - 2001
Will Brown conquers the 100 mile distance at the 2001 Umstead 100 Mile Run in Umstead State Park, Raleigh, North Carolina, April 7-8, 2001.