Sean C. Morgan
Late Saturday, one man had captured bragging rights for the Mountain Mud Festival obstacle course off Berlin Road near the top of Mark’s Ridge.
Bill Miller of Springfield, attending the event for the first time, tore around the track in a rig he built himself in one minute 12 seconds.
Other drivers consistently finished better than 1:30, but few came closer to catching Miller.
Miller ran the course three times, improving his…