2018-19: Fastest Wildcat in 200 fly (2:00.97) ... Took third in the both the 200 fly and 300 IM in the season's first meet against Michigan (10/19) ... Finished second in the 200 fly in quad-dual against UIC/Chicago/Illinois (10/26) ... Set a career high in the 200 free with a fourth place finish at the TYR Invite ... Closed out a 1-4 Wildcat sweep in the 200 IM and 1-5 sweep in the 100 fly, both with season highs (11/16-18).
2017-18: Posted her first win of the season against Georgia Tech in the 200 fly, along with a second place finish in the 100 fly (10/21) ... Won the 200 back in career-best fashion (2:05.16) at the triple-dual against UIC and UChicago (10/28) ... Took second in the 200 fly against Wisconsin (11/11) ... Recorded a career best in the 100 fly to take fifth, along with a fourth place finish in the 200 fly in the TYR Invitational (11/17-19) ... Also took sixth with a career high in the 200 IM (2:03.39) and finished eighth in the 50 fly ... Finished second in the 200 fly against Iowa (1/20) ... Placed seventh in the 100 fly in triple dual against Purdue and No. 18 Minnesota (1/27) ... Set a career high in the 200 IM at the Big Ten Championships.
2015-16: Consistent butterfly presence as a freshman ... Second-fastest Wildcat swimmer in the 100 fly and 200 fly this season ... Swam season-best times in the 100 fly, 200 fly, and 200 IM at the Big Ten Championships (2/18-20) ... Qualified for a second swim in the 200 fly and registered a 19th-place finish in the finals (1:59.79) ... Paced the 'Cats in the 100 fly with her fourth-place swim of 56.59 at the triple dual with Minnesota and Purdue (1/29-30) ... Finished third in the 100 fly and 200 fly in dual victory over Iowa (1/23) ... Recorded a season-best time of 2:07.88 in the 200 back at Notre Dame (1/16) ... Also turned in a third-place performance in the 100 fly at the dual ... Turned in a first-place finish in a reverse 100 IM at the FAU FUN Invite (12/19), swimming the event in 59.49 ... Earned Big Ten Freshman of the Week honors following her performance (Dec. 23) ... Swam the 200 fly in a third-place time of 2:01.33 at the TYR Invitational (11/20-22) ... Also registered a time of 55.49 in the 100 fly, which is second-best for NU this season ... Participated in the 200 fly for the first time in her collegiate career and placed second (2:04.41) at Illinois (10/30) ... Also finished third in the 100 fly (57.27) ... Part of the quartet that took first place in the 400 medley relay (3:47.38) ... Took home first place in the 100 fly (56.77) at her first-ever collegiate performance at the Chicago Quad (10/24) ... Also finished in third in both the 100 back (59.41) and 200 back (2:08.00).
High School: Five-time NISCA/Speedo High School All-American ... Ranked as the 36th-fastest butterfly swimmer in the nation in 2013-14 ... Finished second in the 100 fly at the 2014 Central Coast Section meet ... Swam the butterfly leg of the winning 400 medley relay at the 2014 Texas Sectionals ... Holds four individual and three relay school records at Los Gatos, which she helped lead to a sixth-place finish at the CCS Championships in 2014 ... Three-time LGHS team MVP ... Swam club with Palo Alto Stanford Aquatics under coach Scott Shea beginning in 2011 ... USA Swimming Gold Medal club that took third place at the 2013 Winter Junior Nationals ... Earned the 2014 Society of Women Engineers Award ... Three-time LGHS honor student ... Two-time USA Swimming Scholastic All-American ... National Society of High School Scholars member.
Personal: Born Alexandra Kaye Grimes ... Daughter of Mark and Beth Grimes ... Played violin for eight years ... Chose Northwestern over Illinois and Rice ... Majoring in Computer Science.
GRIMES'S CAREER BESTS
| Event | Career Best |
| 50 fly | 25.42 |
| 100 fly | 54.89 |
| 200 fly | 1:59.79 |
| 100 IM | 59.49 |
| 200 IM | 2:01.76 |
| 50 free | 24.90 |
| 100 free | 51.57 |
| 200 free | 1:50.21 |
| 500 free | 4:51.32 |
| 50 back | 26.75 |
| 100 back | 56.29 |
| 200 back | 2:05.16 |