Single drum rollers 2003 2,881 h United States, Cypress, Texas
Single drum rollers 2006 3,492 h United States, Cypress, Texas
Single drum rollers 2006 2,753 h United States, Cypress, Texas
Single drum rollers 2007 4,904 h United States, Cypress, Texas
Single drum rollers 2004 2,885 h United States, Cypress, Texas