Rim To River 100 2025 Results. The rim to river 100 lottery opens next sunday, december 1st at 8:00am est and will be open through december 10th. Rim to river 100 miler (11.4.23) 27:40:53.
**2025 rim to river 100 update** we have just been notified by our good friends at the national park service that next yearโs rim to river 100 will need to be held on the weekend on october. Patapsco valley 50k (10.21.23) 7:32:04 npw5k (5.13.23) 22:29.
