Grinders 2018 United States, Ruckersville, Virginia
Grinders 2017 United States, Dupont, Indiana
Grinders 2016 656 United States, Chesterfield, Missouri
Grinders 2018 United States, Gadsden, Alabama
Grinders 2023 31 United States, North Port, Florida
Grinders 2015 Slovak Republic
Trenchers 2022 68 h Germany, Hamburg