She was named to the NCAA all-tournament team all three years, and won the Most Outstanding Player award in 2018 and 2019.

[1] On December 30, 2019, Plummer signed her first professional contract with Italian side Saugella Team Monza.

[7] She made her Serie A debut on January 19 in Monza's 3-2 defeat against Zanetti Bergamo in which she came on as a substitute and scored 9 points.

[8] She was the top scorer in Monza's Coppa Italia quarter final upset over Igor Gorgonzola Novara and played a key role for her team to reach their second-ever Coppa Italia final four,[9] where they were eventually defeated by Unet E-Work Busto Arsizio in the semi-finals.

[10] In CEV Cup, Plummer only played in Monza's 3-1 loss in the second leg of the round of 16 match-up against Dinamo Kazan which eliminated them from the competition.