Key: Win : Draw : Loss
| Date | Home | Away | Ref | ||
|---|---|---|---|---|---|
| 04/08/2018 | Brentford | 5 | 1 | Rotherham | O Langford |
| 11/08/2018 | Rotherham | 1 | 0 | Ipswich | D Webb |
| 18/08/2018 | Leeds | 2 | 0 | Rotherham | R Jones |
| 21/08/2018 | Rotherham | 2 | 3 | Hull | J Simpson |
| 26/08/2018 | Rotherham | 1 | 0 | Millwall | G Eltringham |
| 01/09/2018 | Wigan | 1 | 0 | Rotherham | S Duncan |
| 15/09/2018 | Rotherham | 1 | 0 | Derby | P Bankes |
| 18/09/2018 | Aston Villa | 2 | 0 | Rotherham | A Davies |
| 22/09/2018 | Nott'm Forest | 1 | 0 | Rotherham | R Jones |
| 29/09/2018 | Rotherham | 2 | 2 | Stoke | D Webb |
| 03/10/2018 | Rotherham | 0 | 0 | Bristol City | G Ward |
| 06/10/2018 | Birmingham | 3 | 1 | Rotherham | K Stroud |
| 20/10/2018 | Rotherham | 1 | 1 | Bolton | T Robinson |
| 23/10/2018 | Middlesbrough | 0 | 0 | Rotherham | D Bond |
| 27/10/2018 | Preston | 1 | 1 | Rotherham | J Simpson |
| 03/11/2018 | Rotherham | 2 | 1 | Swansea | T Harrington |
| 10/11/2018 | Blackburn | 1 | 1 | Rotherham | D Webb |
| 24/11/2018 | Rotherham | 2 | 2 | Sheffield United | P Bankes |
| 27/11/2018 | Rotherham | 2 | 2 | QPR | A Woolmer |
| 01/12/2018 | Norwich | 3 | 1 | Rotherham | S Martin |
| 08/12/2018 | Sheffield Weds | 2 | 2 | Rotherham | D Bond |
| 15/12/2018 | Rotherham | 1 | 1 | Reading | R Joyce |
| 22/12/2018 | Rotherham | 0 | 4 | West Brom | T Harrington |
| 26/12/2018 | Bolton | 2 | 1 | Rotherham | J Simpson |
| 29/12/2018 | Bristol City | 1 | 0 | Rotherham | S Duncan |
| 01/01/2019 | Rotherham | 2 | 1 | Preston | L Probert |
| 12/01/2019 | Ipswich | 1 | 0 | Rotherham | J Linington |
| 19/01/2019 | Rotherham | 2 | 4 | Brentford | T Harrington |
| 26/01/2019 | Rotherham | 1 | 2 | Leeds | T Robinson |
| 02/02/2019 | Millwall | 0 | 0 | Rotherham | A Madley |
| 09/02/2019 | Rotherham | 1 | 1 | Wigan | O Langford |
| 12/02/2019 | Hull | 2 | 2 | Rotherham | S Duncan |
| 16/02/2019 | Rotherham | 2 | 2 | Sheffield Weds | D England |
| 23/02/2019 | Reading | 1 | 1 | Rotherham | J Simpson |
| 02/03/2019 | Rotherham | 3 | 2 | Blackburn | J Brooks |
| 09/03/2019 | Sheffield United | 2 | 0 | Rotherham | G Eltringham |
| 13/03/2019 | QPR | 1 | 2 | Rotherham | D Webb |
| 16/03/2019 | Rotherham | 1 | 2 | Norwich | O Langford |
| 30/03/2019 | Derby | 6 | 1 | Rotherham | T Robinson |
| 06/04/2019 | Rotherham | 2 | 1 | Nott'm Forest | S Martin |
| 10/04/2019 | Rotherham | 1 | 2 | Aston Villa | A Madley |
| 13/04/2019 | Stoke | 2 | 2 | Rotherham | A Woolmer |
| 19/04/2019 | Swansea | 4 | 3 | Rotherham | K Stroud |
| 22/04/2019 | Rotherham | 1 | 3 | Birmingham | A Davies |
| 27/04/2019 | West Brom | 2 | 1 | Rotherham | R Jones |
| 05/05/2019 | Rotherham | 1 | 2 | Middlesbrough | A Madley |