Reindeer Run 5k - Aberdeen

Reindeer Run 5k - Aberdeen is held in Aberdeen, Maryland, on December 19, 2026, with the 5K run/walk and a 1-mile fun run both starting at 8:00 a.m. Part of the Holiday Running Series, it gives participants a custom medal and shirt and is professionally timed on the RaceResult chip system by Blue Cheetah Sports Timing and Event Management. The certified course is described as fast and flat, suited to family running and personal bests alike, a share of proceeds goes to the National PTSD Foundation, and awards go three deep for men and women in each age group.

A certified, flat course with chip timing is the combination you want for a legitimate personal best, so if you have a number in mind this is a reasonable place to chase it. Sharpen with two or three weeks of 1-kilometer repeats at goal pace, then taper lightly into race morning.