Date Athlete Record Championship
2006-05-07Joshua Foer138 digitsFriendly (Cambridge) Memory Championship 2006
2010-05-02Nelson DELLIS300 digitsFriendly (Cambridge) Memory Championship 2010
2015-05-05Lance TSCHIRHART811 digits (e) MAA US Open 2015 (Digital)
2016-07-02Alex MULLEN1110 digitsIAM US Open 2016