2020-21 Honors – Honorable mention CSCAA Scholar All-American… Academic All-Big Ten. 2020-21 – Posted NCAA “B” qualifying times in 200 free (1:35.09) and 500 free (4:19.01)… 200 free time was a career-best… led team in 200 free, 500 free, and 1,000 free (9:14.05), which was a career-best time… ranked third on team in 200 fly (1:47.41) and swam a career-best 1:49.71 in 200 IM at Big Tens… scored in five events at Big Tens, including three individual events… was 10th in 200 free (1:35.18) and 500 free (4:19.01) and 24th in 200 fly (1:52.11)… member of the team-leading 400-free (2:53.98) and 800-free (6:22.56) relays that placed sixth at Big Tens.
2019-20 Honors — CSCAA honorable mention Scholar All-American… recipient of the 2019-20 Strength and Conditioning Award… Academic All-Big Ten selection… named to the Dean’s List for the spring semester. 2019-20 — Posted an NCAA “B” qualifying time in the 500 free (4:18.81)… led the team in the 500 free and 1,000 free (9:25.52)… member of the team-leading 800-free relay that set a school record and posted an NCAA provisional qualifying time… scored in three events at the Big Ten Championships… placed fifth as part of the 800-free relay (6:20.84), while winning the “B” final to place ninth in the 500 free (4:20.02) and finishing 13th in 200 free (1:35.89)… swam collegiate bests in 50 free (21.49), 100 free (44.90), 200 free (1:35.09), 500 free (4:18.81), 100 fly (49.86), and 200 fly (1:47.36).
2018-19 Honors — CSCAA honorable mention Scholar All-American… earned the team’s 2018-19 Strength and Conditioning Award… named to the Dean’s List in both the fall and spring semesters. 2018-19 — Posted an NCAA “B” qualifying time in the 500 free (4:21.31)… ranked second on the team in the 500 free, second in the 1,000 free (9:24.75), third in the 200 free (1:37.21), and third in the 1,650 free… placed sixth as part of the 800-free relay that swam to a school record (6:23.07) at the 2019 Big Ten Championships… also placed 12th in the 500 free (4:21.31).
High School — Euro Junior Swimming Championships gold medalist in the 800-free relay and bronze medalist in the 200 free in 2016…has a personal best of 1:49.37 in the 200 long-course free… swim coach was Przemyslaw Czokow.
Personal — Born May 22, 1998… son of Anna Dalmin… majoring in health and human physiology.
Arndt’s Collegiate Bests
| Event | Time | Meet | Date |
| 50 Free | 21.49 | Michigan State/UNI | 10/5/19 |
| 100 Free | 44.90 | at Shamrock Invitational | 1/25/20 |
| 200 Free | 1:35.09 | at Big Ten Championships | 3/2/21 |
| 500 Free | 4:18.81 | at American SC Championships | 3/6/20 |
| 1,000 Free | 9:14.05 | at Northwestern | 1/23/21 |
| 1,650 Free | 15:26.79 | Hawkeye Invitational | 11/17/18 |
| 100 Fly | 49.86 | Western Illinois | 2/7/20 |
| 200 Fly | 1:47.36 | at Big Ten Championships | 2/29/20 |
| 200 IM | 1:51.83 | at Minnesota | 2/6/21 |