| Singles competition |
| 1. #27 Johannes Schretter (BU) def. #48 Matej Vocel (OSU) 6-4, 6-1 |
| 2. #49 Matias Soto (BU) vs. Mathieu Scaglia (OSU) unfinished |
| 3. #111 Adrian Boitan (BU) def. Maxim Tybar (OSU) 6-3, 6-1 |
| 4. #76 Will Little (BU) vs. Emile Hudd (OSU) unfinished |
| 5. Sven Lah (BU) def. Luke Hammond (OSU) 6-2, 6-4 |
| 6. Kyrylo Tsygura (BU) def. Brady Draheim (OSU) 6-2, 6-4 |
| Doubles competition |
| 1. Matias Soto/Will Little (BU) vs. #38 Maxim Tybar/Mathieu Scaglia (OSU) unfinished |
| 2. #74 Emile Hudd/Matej Vocel (OSU) def. Sven Lah/Adrian Boitan (BU) 6-4 |
| 3. Luke Hammond/Brady Draheim (OSU) def. Johannes Schretter/Constantin Frantzen (BU) 6-4 |
| Match Notes |
| Oklahoma State 15-11; National ranking #32 |
| Baylor 21-4; National ranking #8 |
| Order of finish: Doubles (3,2); Singles (6,1,5,3) |
| 2019 Big 12 Conference Tennis Semifinals |