According to Official Guinness Records,
The most pots thrown in one hour by an individual is 193, and was achieved by Jim Calhoun (USA) in Phoenix, Arizona, USA, on 21 March 2018. The pots thrown during the evening were sold to raise funds for the Natalia Lantseva Ceramic Scholarship Fund.
For a complete list of 2018 records, please visit 2018 Guinness Records in United States.