Single drum rollers 2022 398 h United States, Indianapolis, Indiana
Single drum rollers 2012 3,960 h United States, Snohomish, Washington
Single drum rollers 2023 136 h United States, Whitestown, Indiana
Single drum rollers 2019 1,482 h United States, Waterloo, Iowa
Single drum rollers 1992 United States, Baltimore, Maryland
Single drum rollers 2024 36 h United States, Fort Dodge, Iowa
Single drum rollers 1998 Portugal