[2][3][4][5] In her senior year, McQuillin led Arizona softball to a berth in the 2019 Women's College World Series after being absent for nearly a decade.

[15] As a junior, she set season highs in wins, strikeouts (school top-10 record), shutouts (led the NCAA) and innings pitched.

[17] Facing the New Mexico Lobos on February 11, 2018, McQuillin threw a no hitter and began a career highlight of 14 consecutive wins, until suffering a loss to the Washington Huskies on March 23.

[18] For the streak, she tossed 93.0 innings, allowing 35 hits, 2 earned runs, 22 walks and amassing 121 strikeouts, resulting in a 0.15 ERA and 0.61 WHIP.

[22] McQuillin made her last appearance by pitching four scoreless innings with 6 strikeouts in an elimination loss to the Alabama Crimson Tide on June 1.