| 1/09/2019 | 15:00 | R.FC.de Liège A | K.SK. Heist | 0-3 |
| 7/09/2019 | 20:00 | K.SK. Heist | K.Rupel Boom FC. | 1-0 |
| 14/09/2019 | 20:00 | K.Patro Eisden Maasmech. | K.SK. Heist | 0-1 |
| 21/09/2019 | 20:00 | K.SK. Heist | VV.Thes Sport Tessenderlo A | 0-1 |
| 28/09/2019 | 20:00 | R White Daring Molenbeek | K.SK. Heist | 2-0 |
| 5/10/2019 | 20:00 | K.SK. Heist | U.R. La Louvière-Centre A | 1-1 |
| 12/10/2019 | 20:00 | Lierse Kempenzonen A | K.SK. Heist | 0-1 |
| 19/10/2019 | 20:00 | K.SK. Heist | K.MSK.Deinze A | 0-3 |
| 26/10/2019 | 20:00 | F.C. Seraing A | K.SK. Heist | 2-1 |
| 2/11/2019 | 20:00 | K.SK. Heist | FC.V.Dender E.H. A | 0-2 |
| 9/11/2019 | 19:30 | K.FC.Dessel Sport A | K.SK. Heist | 1-1 |
| 16/11/2019 | 20:00 | K.SK. Heist | Olympic Charleroi C.F. | 4-0 |
| 23/11/2019 | 20:00 | A.FC.Tubize | K.SK. Heist | 0-2 |
| 30/11/2019 | 20:00 | K.SK. Heist | K.Sint-Eloois-Winkel Sp. | 1-0 |
| 7/12/2019 | 20:00 | K.SK. Heist | URSL Visé A | 1-0 |
| 14/12/2019 | 20:00 | K.MSK.Deinze A | K.SK. Heist | 3-2 |
| 11/01/2020 | 20:00 | K.SK. Heist | R White Daring Molenbeek | 0-0 |
| 19/01/2020 | 15:00 | K.Rupel Boom FC. | K.SK. Heist | 0-1 |
| 25/01/2020 | 20:00 | K.SK. Heist | K.Patro Eisden Maasmech. | 0-0 |
| 1/02/2020 | 20:00 | Olympic Charleroi C.F. | K.SK. Heist | 2-3 |
| 8/02/2020 | 20:00 | K.SK. Heist | A.FC.Tubize | 1-1 |
| 16/02/2020 | 15:00 | K.Sint-Eloois-Winkel Sp. | K.SK. Heist | 1-3 |
| 1/03/2020 | 15:00 | URSL Visé A | K.SK. Heist | |
| 7/03/2020 | 20:00 | K.SK. Heist | Lierse Kempenzonen A | |
| 14/03/2020 | 20:00 | U.R. La Louvière-Centre A | K.SK. Heist | |
| 21/03/2020 | 20:00 | K.SK. Heist | F.C. Seraing A | |
| 28/03/2020 | 20:00 | FC.V.Dender E.H. A | K.SK. Heist | |
| 4/04/2020 | 20:00 | K.SK. Heist | R.FC.de Liège A | |
| 18/04/2020 | 20:00 | K.SK. Heist | K.FC.Dessel Sport A | |
| 25/04/2020 | 20:00 | VV.Thes Sport Tessenderlo A | K.SK. Heist |