Little Patuxent River Half Marathon & 10K

Registration is SOLD OUT for the 2025 race. There is no waiting list. All information about this race can be viewed at https://www.ripitevents.com/littlepatuxentriverrun . Enjoy nature in one of the most beautiful areas of Columbia, MD. Starting and finishing at the Guilford Pratt Truss Bridge, the half marathon (13.1 miles), 10K (6.55 miles) and 5K (3.1 miles) takes place on the Patuxent and Wincopin trails. The course runs along the Little Patuxent and Middle Patuxent River. The terrain is tame compared to many other trail races. This race is appropriate for beginners and intermediate runners. NEW 5K OPTION! Add the 5K race on Feb 1 and earn 3 finisher medals. Feb 1 @ 4:00 PM - 5K* Feb 2 @ 9:00 AM- Half Marathon & 10K *The 5K race is an add-on option only. There is no 5K only option. 5K race is capped at 250 runners.​