Single drum rollers 2019 1,152 h United States, Tucson, Arizona
Single drum rollers 2017 504 h United States, Eloy, Arizona
Single drum rollers 2022 799 h United States, Apache Junction, Arizona
Single drum rollers 2020 1,988 h United States, Safford, Arizona
Single drum rollers 2021 1,136 h United States, Tucson, Arizona
Single drum rollers 2019 890 h United States, Phoenix, Arizona