She was the first South American woman's racquetball player to finish in the top 10 on the women's pro tour, doing so six straight seasons (2003-04 to 2008–09).

Grisar was runner up in singles at the World Championships twice: in 2004,[1] when she lost to Cheryl Gudinas in the final in Anyang, South Korea, and 2006,[1] Canadian Christie Van Hees in the final in Santo Domingo, Dominican Republic.

Her latest medal at Worlds came in 2014, when she was a bronze medalist in Women's Doubles with Carla Muñoz.

[6] Grisar has three other bronze medals in singles: one from the 2004 Pan American Championships, when she lost to Canadian Lori-Jane Powell in the semi-finals,[7] one from the 2011 Pan American Championships, when she lost to Samantha Salas in semi-finals,[8] and the other at the 2009 World Games in Kaohsiung, Taiwan.

Over her career, Grisar was a top 10 player on the women's pro tour rankings for six consecutive seasons from 2003–04 to 2008–09.