Murderkill Ultramarathon

Felton, United States • 26 Jul 2025

The Murderkill Ultramarathon takes place at Killens Pond State Park in Felton, Delaware, featuring 50-mile, 50K, and 12-hour race options. The course is a roughly 3.1-mile mostly dirt loop with minimal technical challenges, shaded trails, and opportunities to cool off in the pond. The race embraces an old-school, self-supported style with minimal aid—water is provided, but no guaranteed aid stations, medals, or chip timing.

Limited to 30 participants per race, the event fosters a community atmosphere with shared food and drink tables. Held in late July, runners should expect hot, humid conditions. Parking and park fees are included in the modest entry cost. Visit the organization's website for the most recent information.

Race information

12 hr
12hrs
50 mi
50 Miler
50 km
50k
Visit the organization's website for the most recent information.
Trail runs nearby

Take on rugged trails at Killens Pond State Park in Felton Delaware during the Angela Ivory Memorial Trail Runs on January 24 and 25 2026. Distances include a 50k, 100 Miler and 24 Hour event; 50k is currently full.

Race4Warriors on May 9 2026 in Lewes DE offers 5K, 10K and half marathon with Run, Race Walk or a Heavy March through Cape Henlopen State Park and Fort Miles. Finishers get a medallion and a lively post race party with bands and vendors.