Butler verbally committed to the Green Bay Phoenix in June 2019 and officially signed her letter of intent on November 11, 2020.[5] She became the fourth Wisconsin Miss Basketball player to play at Green Bay.[6]
Playing in 27 games, Butler averaged 3.1 rebounds per game, and totaled 58 assists and 38 steals. In scoring, Butler recorded season highs of 14 points twice, at Youngstown State on December 4, 2021, and vs. UW-Milwaukee on February 7, 2022. The Horizon League voted Butler onto the All-Freshman Team plus Freshman of the Year and Sixth Player of the Year awards.[7][8] Green Bay finished third in the conference and earned an at-large bid to the 2022 Women's National Invitation Tournament.[9]
Bailey averaged 8.5 points, 3.9 rebounds, and 4.1 assists per game, including a conference leading 2.26 assist-to-turnover ratio. Butler's notable games include an 11-for-11 free throw effort vs. Wisconsin on December 14, 2022, and a near double-double of 16 points and 9 assists at Oakland on February 5, 2023.[7] Elected to the Horizon League All-League Second-Team and All-Defensive Team,[10] Butler help led the team to the regular-season conference title and another WNIT bid, this time reaching the 2nd round.[11]
Bailey led the conference in assists at 5.4 per game (181 total) and assist-to-turnover ratio at 2.9. Finished second in the conference with 2.18 steals per game (72 total).[7] Butler scored 20 points and nabbed 6 steals at Northern Kentucky on January 5, 2024, both career highs.[12] Against Oakland on February 22, 2024, Butler notched a double-double with 10 rebounds and 10 assists.[13] Voted Horizon League All-League Third Team and All-Defensive Team, Butler helped Green Bay win the conference tournament, earning an automatic bid to the NCAA tournament after a five-year absence.[14]
Butler led the league again in assists at 4.8 per game (160 total) and assist-to-turnover ratio at 2.9. Butler twice recorded double-digit assist totals with 12 at UW-Milwaukee on December 11, 2024, and vs. Northern Kentucky on January 2, 2025.[7] Butler became the school's all-time Division I career assist leader by the end of the regular season, passing Megan Lukan at 525 assists.[15]
Voted onto the Horizon League All-Defensive Team along with teammate and senior Jasmine Kondrakiewicz, Butler was also awarded the Horizon League Defensive Player of the Year.[16] Butler helped Green Bay win both the Horizon League regular-season and tournament championships, earning another bid to the NCAA tournament.[17]