Single drum rollers 2022 412 h United States, Baltimore, Maryland
Single drum rollers 2013 2,076 h United States, Hagerstown, Maryland
Single drum rollers 2023 United States, Baltimore, Maryland
Single drum rollers 2004 1,589 h United States, Crofton, Maryland
Single drum rollers 2008 1,521 h United States, Annapolis, Maryland
Single drum rollers 2020 United States, Crofton, Maryland
Single drum rollers 2016 1,929 h United States, Crofton, Maryland
Single drum rollers 2020 United States, Baltimore, Maryland