| Type | Date | Time | Home Team | Away Team | Location | Result |
| League | 4/13/2021 | 5pm | Cottage Grove | Siuslaw | Cottage Grove High School | |
| League | 4/16/2021 | 3pm | Siuslaw | Elmira | Siuslaw High School | |
| League | 4/16/2021 | 5pm | Siuslaw | Elmira | Siuslaw High School | |
| League | 4/20/2021 | 5pm | Siuslaw | Marshfield | Siuslaw High School | |
| League | 4/23/2021 | 3pm | Marist Catholic | Siuslaw | Marist Catholic High School | |
| League | 4/23/2021 | 5pm | Marist Catholic | Siuslaw | Marist Catholic High School | |
| League | 4/27/2021 | 5pm | Siuslaw | Junction City | Siuslaw High School | |
| League | 4/30/2021 | 3pm | Siuslaw | Cottage Grove | Siuslaw High School | |
| League | 4/30/2021 | 5pm | Siuslaw | Cottage Grove | Siuslaw High School | |
| League | 5/4/2021 | 5pm | Elmira | Siuslaw | Elmira High School | |
| League | 5/7/2021 | 3pm | Marshfield | Siuslaw | Marshfield High School | |
| League | 5/7/2021 | 5pm | Marshfield | Siuslaw | Marshfield High School | |
| League | 5/11/2021 | 5pm | Siuslaw | Marist Catholic | Siuslaw High School | |
| League | 5/14/2021 | 3pm | Junction City | Siuslaw | Junction City High School | |
| League | 5/14/2021 | 5pm | Junction City | Siuslaw | ||
OSAA Siuslaw Girls Basketball Schedule @ 3-23-2021
