Fifteen Democratic delegates sought a range of other offices; only five were successful:

Tom Hucker, Elected to Montgomery County Council
Susan Lee, Elected to Senate
Veronica Turner, Defeated in Primary for Senate
Shirley Nathan-Pulliam, Elected to Senate
Jolene Ivey, Defeated in Primary for Lt. Governor
Melony Griffith, Defeated in Primary for Senate
Guy Guzzone, Elected to Senate
Heather Mizeur, Defeated in Primary for Governor
Aisha Braveboy, Defeated in Primary for Attorney General
Jon Cardin, Defeated in Primary for Attorney General
Luiz Simmons, Defeated in Primary for Senate
Peter Murphy, Elected Charles County Commission President
Johnny Olszewski, Defeated in General for Senate
Mary-Dulany James, Defeated in General for Senate
Doyle Niemann, Defeated in Primary for PG County Council

Five of eight Republican delegates who ran for higher office were successful in 2014:

Addie Eckardt, Elected to Senate
Steven Schuh, Elected Anne Arundel County Executive
Wade Kach, Elected to Baltimore County Council
Michael Hough, Elected to Senate
Jeannie Haddaway-Riccio, Defeated in Primary for Lt. Governor
Ron George, Defeated in Primary for Governor
Gail Bates, Elected to Senate
Mike McDermott, Defeated in General for Senate

If I am missing anyone, please let me know. Thanks to those who sent in corrections–the post has been updated.