A two-time First Team and two-time Second Team All-Atlantic 10 selection, David Rosa also earned All-East honors as a junior and senior, placing fifth in the 400m intermediate hurdles at the 2001 and 2002 outdoor IC4A/ECAC Championships.
 
On the Atlantic 10 level, Rosa won the 400m intermediate hurdles at the 2001 and 2002 outdoor A-10 Championships to earn First Team All A-10 honors and his winning time of 52.30 in 2002 is still top 15 all-time in A-10 history. He also took second in the 110m hurdles at the 2001 and 2002 outdoor A-10 Championships to earn Second Team all-conference accolades.
 
Indoors, Rosa placed third in the 55m hurdles at the 2000 indoor Atlantic 10 Championship and sixth in the 200m and eighth in the 55m hurdles at the 2001 indoor championships
 
At the prestigious Penn Relays, Rosa took 14th in the 400m intermediate hurdles in the Championship of America race at the 2001 event and 15th in the 400m intermediate hurdles at the 2002 Penn Relays.