July 17 2018
Under Armour's second annual Mountain Running Series kicked off at Colorado's Copper Mountain on Saturday, July 14.
This year’s Rock ‘n’ Roll Los Angeles Marathon was a costume extravaganza. In addition to taking place the weekend before Halloween, the event also partnered with Stan Lee’s Comic Con, creating an atmosphere of fun that was well documented by event photographers as they captured runners tackling the course enthusiastically in their costumes. Scroll through the photo gallery below to see some of the best runner costumes and exciting moments from this year’s race.