Honors & Awards
- Nebraska Scholar-Athlete Honor Roll (Fall 2022, 2023)
- Tom Osborne Citizenship Team (2023, 2024)
2023-24: Senior
In his senior season, Rudi Christiansen tallied a 15-9 singles record and 4-3 doubles mark on the season. An Alabama transfer, Christiansen concluded his collegiate career with 37 singles wins and 11 doubles wins. Christiansen put up two Big Ten wins at six singles in his final season, over Wisconsin and Penn State.
Off the court, Christiansen was named to the 2024 Tom Osborne Citizenship Team.
2022-23: Junior
In his first season with Nebraska, Rudi Christiansen posted an 8-3 overall singles record. The majority of his play came in the fall season, where he went 7-3 and finished 5-1 in his last six fall matches. In the spring, he competed in just one match, where he defeated Shin Inoue 6-2, 6-7 (5), [10-1] in the No. 4 spot. In doubles, he went 1-4, with all matches coming in the fall.
Off the court, Christiansen was named to the Nebraska Scholar-Athlete Honor Roll in the fall and the 2023 Tom Osborne Citizenship Team.
Before Nebraska
A native of Heilbronn, Germany, Rudi Christiansen spent his freshman and sophomore seasons at the University of Alabama, recording 16 singles wins and had doubles wins at the MSU Bulldog and UCF Invitationals. Before college, Christiansen had been ranked in the top-five among junior players in Germany and has wins over four top-30 ITF juniors.
Personal
The son of Katja and Detlef Christiansen, Rudi was born on July 14, 2001. He is majoring in business administration.
Singles
| Year | Spring | Big Ten | Fall | Total |
| 2020-21* | 4-0 | -- | -- | 4-0 |
| 2021-22* | 4-7 | -- | 6-6 | 10-13 |
| 2022-23 | 1-0 | -- | 7-3 | 8-3 |
| 2023-24 | 9-4 | 2-1 | 6-5 | 15-9 |
| Totals | 18-11 | 2-1 | 19-14 | 37-25 |
*Indicates Alabama
Doubles
| Year | Spring | Big Ten | Fall | Total |
| 2020-21* | -- | -- | -- | -- |
| 2021-22* | 2-5 | -- | 4-2 | 6-7 |
| 2022-23 | -- | -- | 1-4 | 1-4 |
| 2023-24 | -- | -- | 4-3 | 4-3 |
| Totals | 2-5 | -- | 9-9 | 11-14 |
*Indicates Alabama