The 38-year-old allowed some youngsters to join him in the ring at a local concert hall as he demonstrated his technique to the packed audience in the Russian capital, with the boxing fans replicating his movements.
Official Guinness World Records judge Sofia Greenacre was on hand to note down the new record and hand Mayweather his award; the previous record was set in 2014, in London, but only had a mere 508 participants.
The event, which was designed to give something back to his Russian fans, was organised by Boxing Academy in association with Russian Timber Group and State Corporation Rostec.
Mayweather was also pictured inside the cock pit of a private jet with Money Team Boss and CEO Of Philthy Rich Records P-Reala.
- Daily Mail