Inducted as truly a great player, Rosen was a standout player at Harriton (Pa.) High School, earning four-time All-DelVal and All-Main Line team recognition, as well as All-America honorable mention (1987) and All-America (1988) status. As an All-American for Virginia, Rosen won the UVA Team Award (1992) and was team captain and the MVP in 1992. A two-sport athlete who played both field hockey and lacrosse at UVA, she helped lead the Cavaliers to their first NCAA women's lacrosse championship in 1991. Rosen received honorable mention on the All-South Regional team and played in the North/South All-Star Game in 1992. She is a member of the ACC’s 50th Anniversary Women’s Lacrosse Team, selected in 2002.
Rosen was a 13-year club player, winning the USWLA Tournament Championship with Philadelphia (1994) and New England (1998, 1999). Internationally, Rosen was a member of the U.S. Women’s National First Team (1992), the Elite Team from 1993 to 2005, Touring Out Team (1996, 2000) and the Touring In Team (1999, 2004). Rosen won gold as a member of Team USA at the 1997 and 2001 World Cup. She was awarded the Beth Allen Award in 1999.
Rosen has been previously inducted into the US Lacrosse Connecticut Chapter Lacrosse Hall of Fame (2010), the US Lacrosse Philadelphia/Eastern Pennsylvania Chapter Lacrosse Hall of Fame (2008), the Harriton High School Hall of Fame (2000) and the Philadelphia Jewish Sports Hall of Fame (2002). At the time of her induction in 2010, Rosen was serving as head coach at Temple University.