Mark Walton Pos RB, Career G, Bengals Dolphins , born ..Mark Walton. . RB. HT WT “. . AGE DOB . . EXPERIENCE nd season. COLLEGE Miami Fla. Week . VS. BUF. Week VS..Mark Walton born is an American football running back who is currently a free agent. After playing college football at the University of Miami, he was drafted by the Cincinnati Bengals in the fourth round of the NFL Draft. He also played for the Miami Dolphins..Dolphins running back Mark Walton has been suspended without pay for the next four games for violating NFL conduct and substance abuse .