Twin drum rollers 1997 9,185 h United States, Edgerton, Wisconsin
Other rollers 1999 United States, Sparrow Bush, New York
Twin drum rollers 2006 4,604 h United States, Monroe, North Carolina
Twin drum rollers 2,817 h United States, Riverside, California
Single drum rollers United States, Southeast, North Carolina
Twin drum rollers 2002 2,992 h United States, Scott Township, Pennsylvania
Twin drum rollers 5,999 h United States, Pleasureville, Kentucky