In 31 years at the University of Oklahoma, she has compiled a record of 1,567–361–2 and a winning percentage of . Her teams have advanced to the
Women's College World Series fourteen times and won the national championship eight times in 2000, 2013, 2016, 2017, 2021, 2022, 2023 and 2024. In 1999, the University of Oklahoma won its third Big 12 Conference championship in five years at Oklahoma, but financial difficulties nearly ended her tenure following the 1999 season. Gasso noted: Gasso remained in
Oklahoma for the 2000 season despite her husband's return to California. Following the national championship in 2000, the University of Oklahoma gave Gasso "a significant salary hike," and her husband was able to return to Oklahoma. The 2012 team finished its season with a 54–10 record. Gasso was inducted into the National Fastpitch Coaches Association (NFCA) Hall of Fame in 2012. Gasso reached a milestone on March 15, 2015, when she got her 1,000th win as the head coach of Oklahoma in a resounding win over East Carolina. On June 6, 2017, Gasso and the Sooner softball team swept Florida in the national championship, winning Gasso her second national championship in two years and fourth overall. On June 10, 2021, Gasso's Sooners defeated
Florida State in the national championship, winning Gasso's and the school's fifth national championship. On June 8, 2022, Gasso's Sooners defeated
Texas in the national championship, winning Gasso's and the school's sixth national championship. On June 8, 2023, Gasso's Sooners defeated
Florida State in the national championship, winning Gasso's and the school's seventh national championship, and their third consecutive championship. They became the first team to
three-peat since
UCLA from
1988 to
1990. The
2023 team nearly finished the season undefeated with a record of 61–1. Their only loss came in February to Baylor, 4–3, during an early season tournament played in Waco, Texas. On June 6, 2024, Gasso's Sooners again defeated Texas in the national championship series, in a rematch from
2022, winning Gasso's and the school's eighth national championship. Gasso's eight national titles tied
Arizona's
Mike Candrea for the most by any coach in Division I softball history. With the win, Oklahoma became the first team in college softball history to four-peat. ==Team USA (2025–present)==