She was a three-time All-American and two-time Big East Attacker of the Year, Rowan Thomson's teams won the program's first-ever NCAA tournament game in 2007 and later reached its first Final Four in 2008.

[citation needed] Rowan Thomson has won gold medals at the World Lacrosse Championship as a member of the U.S. Women's National Team.

[3] Thompson contributed to the U.S. team's gold medal win at the 2009 Women's Lacrosse World Cup in Prague, Czech Republic.

She also helped the U.S. national team secure its second consecutive gold medal at the 2013 Women's Lacrosse World Cup in Oshawa, Ontario, where she was named player of the match in the final game after setting a program record with 8 goals and 10 points.

[2] Rowan Thomson was selected by the Long Island Sound in the inaugural United Women's Lacrosse League draft in 2016.

[6][11] She also served as a coach for the Haudenosaunee team in the Pan-American Lacrosse Association Women's World Qualifiers, which took place in Auburndale, Florida, in November 2019.

She held the position of head coach for the Haudenosaunee National Senior Team for the World Games, having been officially named to this role on May 1, 2020.