Racers get a taste of the cold muddy water as they run over hurdles during the second annual Dirty Dog Mud Run at Thomas College in Waterville on Sunday.

Shannon Cote rolls over a heavy tire during the Dirty Dog Mud Run at Thomas College in Waterville on Sunday.

Dirty Dog Mud Run racer Abby Gaudette crawls through the mud during the Dirty Dog Mud Run at Thomas College in Waterville on Sunday.

Dirty Dog Mud Run racers take off during one of the starts on the obstacle course at Thomas College in Waterville on Sunday.

Jenna Pederson places a medal on a muddy Ryan Lathrop after he finished the Dirty Dog Mud Run at Thomas College in Waterville on Sunday.

Jacob Leonardi struggles to carry a heavy bucket during one of the obstacle races in the Dirty Dog Mud Run at Thomas College in Waterville on Sunday.