| Events | Regionals Div 6 C | regional | C | Region 6 C | 3 | 60 | Jan 21, 2023 | Lindenwood University |
| Events | Regionals Div 6 B | regional | B | Region 6 B | 3 | 40 | Feb 11, 2023 | Lindenwood University |
| Events | Regionals Div 3 | regional | B | Region 3 B/C | 2 | 60 | Feb 18, 2023 | William Jewell College |
| Events | Regionals Div 3 | regional | C | Region 3 B/C | 2 | 60 | Feb 18, 2023 | William Jewell College |
| Events | Regionals Div 4 | regional | B | Region 4 B/C | 2 | 60 | Feb 18, 2023 | Central Missouri University |
| Events | Regionals Div 4 | regional | C | Region 4 B/C | 2 | 60 | Feb 18, 2023 | Central Missouri University |
| Events | Regionals Div 7 | regional | B | Region 7 B/C | 3 | 60 | Feb 18, 2023 | Missouri State University |
| Events | Regionals Div 7 | regional | C | Region 7 B/C | 3 | 60 | Feb 18, 2023 | Missouri State University |
| Events | Regionals Div 8 | regional | B | Region 8 B/C | 2 | 60 | Feb 18, 2023 | Southeast Missouri State University |
| Events | Regionals Div 8 | regional | C | Region 8 B/C | 2 | 60 | Feb 18, 2023 | Southeast Missouri State University |
| Events | Region 1 B | regional | B | Region 1 B/C | 2 | 50 | Feb 25, 2023 | Northwest Missouri State University |
| Events | Region 1C | regional | C | Region 1 B/C | 2 | 50 | Feb 25, 2023 | Northwest Missouri State University |
| Events | Regionals Div 5 | regional | B | Region 5 B/C | 2 | 40 | Feb 25, 2023 | Missouri S&T |
| Events | Regionals Div 5 | regional | C | Region 5 B/C | 2 | 60 | Feb 25, 2023 | Missouri S&T |
| Events | Regionals Div 2 | regional | C | Region 2 B/C | 2 | 60 | Mar 04, 2023 | Truman State University |
| Events | Regionals Div 2 | regional | B | Region 2 B/C | 2 | 60 | Mar 04, 2023 | Truman State University |
| Events | Missouri Science Olympiad State Tournament | state | B | | 1 | 32 | Apr 01, 2023 | Missouri State University |
| Events | Missouri Science Olympiad State Tournament | state | C | | 1 | 32 | Apr 01, 2023 | Missouri State University |