The Boulder Boys are a group of trail runners based in Boulder, Colorado, including athletes such as Seth Ruhling, Matt Daniels, Drew Holmen, Adam Merry, and Moises Jimenez. The group has gained attention for their performance in various trail and ultrarunning events, as well as for their training and camaraderie.

Some members are coached by David Roche, a notable figure in the trail running community. In addition to their racing, the group hosts The Boulder Boys Show, a podcast that discusses their experiences, current events in trail running, and features interviews with other athletes, including Francesco Puppi.

The athletes in the group have participated in prestigious races, such as the Ultra-Trail du Mont-Blanc (UTMB), Western States 100, Javelina Jundred, Canyons Endurance Runs, Black Canyon 100K, JFK 50 Mile, and Ultra-Trail Cape Town.

Their public presence emphasizes not only their racing achievements but also mental health, personal development, and fostering a supportive community in the sport.