|Hometown:||American Canyon, Calif.|
|High School:||American Canyon HS|
Placed seventh in the 100 breaststroke and ninth in the 200 breaststroke at the Mountain Pacific Sports Federation Championships (MPSF).
Four years varsity for American Canyon High School. Won All-League four years in a row in the 100 breaststroke and three years in a row in the 200 IM. A three-time MVP and two-time CIF state qualifier.
Is the Solano County Athletic Conference (SCAC) record holder in the 100 breast (1:03.25) and 200 IM (2:11.22). Her best times include: 200m breaststroke (2:18.11) and 100 fly (58.8). Rosario was also student valedictorian for her high school.
Rosario is the daughter of Don and Ethel Rosario. She has one younger brother: Ethan.