Single drum rollers 2019 1,600 h United States, Williston Area, North Dakota
Single drum rollers 2011 287 h United States, Londonderry, New Hampshire
Single drum rollers 2022 851 h United States, Salt Lake City, Utah
Single drum rollers 2022 96 h United States, Waterloo, Iowa
Single drum rollers 2024 462 h United States, Cedar City, Utah
Single drum rollers 2021 351 h United States, Bondurant, Iowa
Single drum rollers 2014 971 h United States, Womelsdorf, Pennsylvania
Single drum rollers 2024 1 h United States, Lilly, Pennsylvania
Single drum rollers 2023 565 h United States, Salt Lake City, Utah
Single drum rollers 2023 340 h United States, Corpus Christi, Texas
Single drum rollers 2017 2,558 h United States, Safford, Arizona
Single drum rollers 2017 1,189 h United States, Tampa, Florida
Single drum rollers 2022 77 h United States, Bondurant, Iowa
Single drum rollers 2017 2,483 h United States, Kingman, AZ
Single drum rollers 2015 2,412 h United States, Milwaukee, Wisconsin
Single drum rollers 2022 275 h United States, Pittsfield, Massachusetts
Single drum rollers 2019 1,096 h United States, Lilly, Pennsylvania
Single drum rollers 2018 1,850 h United States, Fort Dodge, Iowa
Single drum rollers 2020 562 h United States, Sergeant Bluff, Iowa
Single drum rollers 2024 6 h United States, Salt Lake City, Utah