Donn is an American Contract Bridge League Grand Life Master.
He is the all-time leader of Richard Pavlicek's monthly polls that ran from 2000-2006 and had thousands of participants from over 90 countries.
[5] Donn authored a popular online column called "Breakin' the Rules" from 2011 to 2015.
[6] He co-authored a book called More Breaking the Rules: Second Hand Play with Barry Rigal in 2013.
[7] He also has moderated and written a column in the ACBL Bridge Bulletin called "The Bidding Box" since 2021.