Key: Win : Draw : Loss
| Date | Home | Away | Ref | ||
|---|---|---|---|---|---|
| 03/08/2018 | Reading | 1 | 2 | Derby | R Jones |
| 11/08/2018 | Derby | 1 | 4 | Leeds | P Bankes |
| 18/08/2018 | Millwall | 2 | 1 | Derby | S Martin |
| 21/08/2018 | Derby | 2 | 0 | Ipswich | S Duncan |
| 25/08/2018 | Derby | 2 | 0 | Preston | D Webb |
| 01/09/2018 | Hull | 1 | 2 | Derby | J Brooks |
| 15/09/2018 | Rotherham | 1 | 0 | Derby | P Bankes |
| 18/09/2018 | Derby | 0 | 0 | Blackburn | D England |
| 22/09/2018 | Derby | 3 | 1 | Brentford | A Madley |
| 29/09/2018 | Bolton | 1 | 0 | Derby | S Duncan |
| 03/10/2018 | Derby | 1 | 1 | Norwich | G Eltringham |
| 06/10/2018 | QPR | 1 | 1 | Derby | D Webb |
| 20/10/2018 | Derby | 2 | 1 | Sheffield United | O Langford |
| 24/10/2018 | West Brom | 1 | 4 | Derby | R Joyce |
| 27/10/2018 | Middlesbrough | 1 | 1 | Derby | S Hooper |
| 03/11/2018 | Derby | 3 | 1 | Birmingham | C Kavanagh |
| 10/11/2018 | Derby | 0 | 3 | Aston Villa | J Brooks |
| 24/11/2018 | Sheffield Weds | 1 | 2 | Derby | J Simpson |
| 28/11/2018 | Stoke | 2 | 1 | Derby | D England |
| 01/12/2018 | Derby | 2 | 1 | Swansea | A Madley |
| 08/12/2018 | Wigan | 0 | 1 | Derby | G Ward |
| 17/12/2018 | Derby | 0 | 0 | Nott'm Forest | K Stroud |
| 22/12/2018 | Derby | 1 | 1 | Bristol City | D Bond |
| 26/12/2018 | Sheffield United | 3 | 1 | Derby | G Eltringham |
| 29/12/2018 | Norwich | 3 | 4 | Derby | D Webb |
| 01/01/2019 | Derby | 1 | 1 | Middlesbrough | R Jones |
| 11/01/2019 | Leeds | 2 | 0 | Derby | A Davies |
| 19/01/2019 | Derby | 2 | 1 | Reading | A Woolmer |
| 01/02/2019 | Preston | 0 | 0 | Derby | D Bond |
| 09/02/2019 | Derby | 2 | 0 | Hull | G Ward |
| 13/02/2019 | Ipswich | 1 | 1 | Derby | A Madley |
| 20/02/2019 | Derby | 0 | 1 | Millwall | J Linington |
| 25/02/2019 | Nott'm Forest | 1 | 0 | Derby | R Jones |
| 02/03/2019 | Aston Villa | 4 | 0 | Derby | L Mason |
| 05/03/2019 | Derby | 2 | 1 | Wigan | T Harrington |
| 09/03/2019 | Derby | 1 | 1 | Sheffield Weds | K Stroud |
| 13/03/2019 | Derby | 0 | 0 | Stoke | O Langford |
| 30/03/2019 | Derby | 6 | 1 | Rotherham | T Robinson |
| 06/04/2019 | Brentford | 3 | 3 | Derby | J Brooks |
| 09/04/2019 | Blackburn | 2 | 0 | Derby | J Simpson |
| 13/04/2019 | Derby | 4 | 0 | Bolton | A Davies |
| 19/04/2019 | Birmingham | 2 | 2 | Derby | S Hooper |
| 22/04/2019 | Derby | 2 | 0 | QPR | D Webb |
| 27/04/2019 | Bristol City | 0 | 2 | Derby | D Bond |
| 01/05/2019 | Swansea | 1 | 1 | Derby | P Bankes |
| 05/05/2019 | Derby | 3 | 1 | West Brom | T Robinson |