| 2020 Tri-Valley Mustang Football Varsity Schedule --- Record: 2-6 Total Points For: 78 Average Points For: 9.75 Total Points Against: 172 Average Points Against: 21.5 |
| Date | Opponent | Location | Time | Result |
| August 28 | Sioux Valley Cossacks | Home | 7:00 | L--6-12 |
| September 4 | Pine Ridge Thorpes | Pine Ridge | 6:00 | CANCELLED |
| September 11 | Vermillion Tanagers | Home | 7:00 | W--22-15 |
| September 18 | West Central Trojans | Home | 7:00 | L--8-25 |
| September 25 | Dell Rapids Quarriers | Dell Rapids | 7:00 | L--0-20 |
| October 2 | Sioux Falls Christian Chargers | Home | 7:00 | W--14-7 |
| October 9 | Canton C-Hawks | Canton | 7:00 | L--14-34 |
| October 16 | Huron Tigers | Home | 7:00 | L--8-27 |
| October 22 | Dakota Valley Panthers | Dakota Valley | 7:00 | L--6-31 |
| 2020 Tri-Valley Mustang Football Junior Varsity Schedule --- Record: 3-4 |
| Date | Opponent | Location | Time | Result |
| August 31 | Dakota Valley Panthers | Home | 4:00 | L--14-32 |
| September 7 | Milbank Bulldogs | Home | 3:00 | W--12-6 (OT) |
| September 14 | Vermillion Tanagers | Home | 4:30 | W--8-0 |
| September 21 | West Central Trojans | Hartford | 4:00 | L--0-6 |
| September 28 | Dell Rapids Quarriers | Dell Rapids | 4:00 | L--0-22 |
| October 5 | Sioux Falls Christian Chargers | Home | 4:30 | W--18-14 |
| October 12 | Canton C-Hawks | Canton | 4:00 | L--0-30 |
| 2020 Tri-Valley Mustang Football Freshman Schedule --- 2-3 |
| Date | Opponent | Location | Time | Result |
| August 22 | Flandreau Jamboree | Flandreau | 10:00 | CANCELLED |
| August 31 | Dakota Valley Panthers | Home | 5:30 | L--8-26 |
| September 7 | Milbank Bulldogs | Home | 4:30 | Scrimmage |
| September 12 | McCook Central Jamboree | Salem | 9:45 | CANCELLED |
| September 14 | Vermillion Tanagers | Home | 4:30 | W--8-0 |
| September 21 | West Central Trojans | Home | 4:00 | L--0-24 |
| September 28 | Dell Rapids Quarriers | Dell Rapids | 4:00 | W--28-0 |
| October 12 | Canton C-Hawks | Canton | 4:00 | L--8-12 |
| 2020 Tri-Valley Mustang Football Junior High Schedule |
| Date | Opponent | Location | Time | Result |
| September 3 | Sioux Valley Cossacks | Volga | 4:00 | CANCELLED |
| September 10 | Milbank Bulldogs | Home | 4:00 | CANCELLED |
| September 15 | Vermillion Tanagers | Vermillion | 4:00 | 8th--L |
| September 24 | West Central Trojans | Home | 4:00 | 7th--W 8th--L |
| October 1 | Dell Rapids Quarriers | Home | 4:00 | 7th--W 8th--L |
| October 5 | Madison Bulldogs | Madison | 4:00 | 7th--L 8th--L |
| October 13 | Sioux Falls Christian Chargers | USF Field | 4:00 | 7th--W 8th--L |
| October 15 | Canton C-Hawks | Home | 4:00 | 7th--W 8th--L |
| October 20 | Dakota Valley Panthers | Dakota Valley | 4:00 | 7th--L 8th--L |