The 2018 campaign saw the Mavericks go 14-4 and appear in the ECC Tournament for the third straight year. Mercy advanced to the ECC Championship Game for the second straight year and ended the season ranked No. 13 in the final IWLCA Coaches Poll. Under Sachs, the Mavericks had three All-Americans in Hunter Isnardi, Talia Stagnitta and Emily Jehle with Isnardi being named the IWLCA, Inside Lacrosse and ECC Midfielder of the Year. At the end of the season, Isnardi was crowned NCAA Division II Statistical Champion in goals per game and draw controls per game, setting a new NCAA Division II single-season record for draw controls. Stagnitta was named ECC Defender of the Year as the Mavericks had six named to the All-ECC teams. Isnardi, Stagnitta and Jehle all received IWLCA First Team All-Region accolades and were named to the All-ECAC teams with Isnardi being named Offensive Player of the Year. The accolades did not stop there for the Mavericks with Jehle and Coticchio being named to the IWLCA Senior All-Star Game and Jehle also received ECC Scholar-Athlete of the Year for Women's Lacrosse.

In 2017, Sachs led the Mavericks to a school-record 16 wins and their first-ever appearance in the NCAA Tournament. Mercy qualified for the ECC Tournament for the second straight year and won their first-ever playoff game over NYIT to advance to the ECC Championship Game for the first time in program history. Sachs also guided the Mavericks to their first national ranking in program history, ending the season ranked No. 11 in the final IWLCA Coaches Poll. During that time Sachs coached the first two All-Americans in program history in sophomores Hunter Isnardi and Talia Stagnitta. Isnardi was a First Team selection and Stagnitta a Third Team recipient, while Sachs coached a school-record seven ECC All-Conference honorees with Isnardi being named Offensive Player of the Year. Sachs was named ECC Coach of the Year for the second straight year and had four named to the IWLCA All-North Region teams. The Mavericks also had three named to the All-ECAC women’s lacrosse teams and two student-athletes selected to play in the IWLCA North/South Senior All-Star Game.

The 2016 season proved to be a successful season with an overall record of 12-7. The Mavericks made their first appearance in the East Coast Conference Playoffs, obtaining the No. 3 seed.