While at St. Edward's, she set school records and individual achievements, including:
She also spent the off-season playing in a professional league in 1999-2001Italy for Familia Schio. After the birth of her daughter, she went to Spain to play for Puig D'En Valls, Ibiza, Spain in 2003. As well as Brno, Czech Republic in 2004. Lavezzini Parma (Italy) in 2005. She was on the gold medal-winning team of the 1998 USA World Championship Team, as well as a member of the silver medal-winning 1997 World Championship Qualifying Team.
In 2005, McWilliams-Franklin played in the Korean women's team, the Shinhan Bank S-Birds, and toured Australia, taking on the Australian women's side, the Dandenong Rangers, in Melbourne. After the Korean season, she went to Salamanca, Spain, where she won a title, beating Barcelona in 5 games. She played half a season in Spartak Region, Moscow, Russia, then returned to Shinhan S-birds in Korea for the Korea professional season in 2006. She won the Korean title and MVP of the finals in 2006, beating the Samsung team, and Lauren Jackson in the finals, 3-2. After having knee surgery in the 2007 offseason, played in winter of 2007 in Israel. In 2008, she will join Galatasaray, Turkey.
She was also a member of the starting team of the 2004 WNBA All-Star squad that played against a select group of players (who were also WNBA players) from the USA Basketball team. That game was held on August 4, 2004 at the historic Radio City Music Hall in New York City. The game was held in place of the regular WNBA All-Star Game and was a send-off for the USA Basketball squad prior to their participation at the 2004 Summer Olympics in Athens, Greece.
McWilliams-Frankin was the recipient of the 2005 Kim Perrot Sportsmanship Award. She was awarded a Tiffany-designed trophy and $5,000. In addition, she has designated an additional $5,000 to go to the Mary Elizabeth House in Richmond, Virginia. She was also 2nd team all WNBA in 2005.
On April 22, 2008 the Los Angeles Sparks traded McWilliams-Franklin to the Washington Mystics for Delisha Milton-Jones. On August 12, 2008 McWilliams- Franklin was traded to the Detroit Shock for Tasha Humphrey, Eshaya Murphy, and a second round pick in the 2009 WNBA draft.