Liu Huankai (China, b. 22 January 2015) successfully recited from memory 60 random digits in correct sequence in 1 minute 39.40 seconds in Beijing, China, on 15 November 2020. Reviewed by the WRCA, Liu Huankai set the world record for the youngest person ever to memorise 60 random numbers in sequence.

Liu Huankai (China, b. 22 January 2015) successfully recited from memory 60 random digits in reverse sequence in 3 minutes 47.16 seconds in Beijing, China, on 15 November 2020. Reviewed by the WRCA, Liu Huankai set the world record for the youngest person ever to memorise 60 random numbers in reverse sequence.