The fastest lawnmowers in St. Lawrence County will race in Lisbon Sunday to support the volunteer fire department. Races will start at 1 p.m., rain or shine, at the Fireman’s Field, Pray Road, Lisbon near the County Route 10 intersection according to organizers. The event will feature concession stands. Residents may bring coolers, lawn chairs and canopies. All proceeds benefit the Lisbon Volunteer Fire Department.