2021-22 Honors – Academic All-Big Ten selection… named to the Dean’s List during the fall semester. 2021-22 – Led team in 100 breast (1:03.59), 200 breast (2:20.52) and 200 IM (2:06.69)… competed at the Big Ten Championships as a member of the team-leading 400 free, 200 and 400 medley relays… member of team’s second-fastest 800-free relay (7:48.14)…member of team’s third-fastest 200 free relay (1:37.45)… scored, placing 24th at the Big Ten Championships in the 100 breast (1:04.04)… won four event titles during the regular season.
2020-21 Honors – Academic All-Big Ten. 2020-21 – Swam a collegiate-best time in 100 breast (1:02.06) at Big Ten Championships… also had a collegiate-best in 400 IM (4:34.59)… had a season-best time in 200 breast (2:16.19) and 200 IM (2:04.58)… led the team in the 200 breast and was second in 100 breast… member of team-leading 200-medley and 400-medley relays… scored in four events at the Big Ten Championships… member of the 400-medley relay (3:37.98) that placed seventh and the 200-medley relay (1:40.22) that was eighth… also was 22nd in the 100 breast (1:02.08) and 24th in the 200 breast (2:16.19).
2019-20 — Tallied an NCAA “B” qualifying standard in the 200 breast, leading the team with a time of 2:13.92… notched a school record as a member of the 400-medley relay (3:36.18)… also led the team in the 100 breast (1:02.39)… scored in two events at the Big Ten Championships, placing ninth in the 400-medley relay (3:36.18) and 21st in 200 breast (2:13.92)… also recorded collegiate bests in the 50 free (25.13) and 200 IM (2:04.49).
High School — Won the 100 and 200-meter breast and was runner-up in 50-meter breast at 2018 TYR ISCA Summer Senior Championships… All-American team qualifier as a junior… Colorado All-State A team as a junior… two-time team MVP… state runner-up in the 100 breast as a sophomore and junior… placed fifth at state in 200 IM as a sophomore and junior and 14th as a freshman… conference champion in 100 breast as a junior… also placed second in 200 IM… conference runner-up in 100 breast as sophomore… school record holder in 100 breast (1:02.91), 200 IM (2:08.29), and 200-medley relay (1:51.30… top times are 1:15.24 (100 LCM breast), 2:17.95 (200 breast), and 1:01.62 (100 breast)… three-time All-America Academic Award… Principal’s Honor Roll recipient all four years… cum laude recipient… National Honor Society… high school coach was Mike Doane.
Personal — Born Oct. 8, 2001, in Manhattan, New York… daughter of Maciej and Lidia Olesiak… has a younger brother, Jakub… majoring in human physiology.
Olesiak’s Collegiate Bests
| Event | Time | Meet | Date |
| 50 Free | 25.13 | at Minnesota Invitational | 12/5/19 |
| 100 Breast | 1:02.06 | at Big Ten Championships | 2/26/21 |
| 200 Breast | 2:13.92 | Big Ten Championships | 2/21/20 |
| 200 IM | 2:04.49 | Big Ten Championships | 2/19/20 |
| 400 IM | 4:34.59 | at Northwestern | 1/23/21 |