Most binary digits memorized in 30 minutes
Who
Ryu Song I
What
7,485 total number
Where
China Mainland (Wuhan)
When

The most binary digits memorized in 30 minutes is 7,485, achieved by Ryu Song I (North Korea) at the 2019 World Memory Championships held in Wuhan City, Hubei, China from 4 to 8 December 2019.