Date Athlete Record Championship
2006-05-07Joshua Foer160 digitsFriendly (Cambridge) Memory Championship 2006
2010-05-02Nelson DELLIS360 digitsFriendly (Cambridge) Memory Championship 2010
2015-05-05Alex MULLEN615 digits (e) MAA US Open 2015 (Digital)
2016-07-02Alex MULLEN1100 digitsIAM US Open 2016