- Who
- Cory Macellaro
- What
- 840 total number
- Where
- United States (Mount Sinai)
- When
The most alternate one-handed claps in one minute is 840, achieved by Cory Macellaro (USA), in Mount Sinai, New York, USA, on 15 August 2020.
Cory attempted this record to demonstrate his unique talents. He was able to surpass the previous record by over 100 claps.