The most dogs walked simultaneously by an individual is 35 and was achieved by Joseph Orsino (USA). The walk took place as part of the Lupus Loop Walk, raising money for The Lupus Foundation and held on the North Shore of Pittsburgh, Pennsylvania, USA on 1st October 2011.

Mr Orsino walked the dogs for a distance of more than 1 km during the rainy weather conditions that took place on the day. He walked with 20 dogs in front of him and 15 smaller dogs walking behind him in a straight line.