| 2018-05-06 | CardiffvReadingChampionship · England | 0–0 | Championship · England |
| 2018-04-28 | HullvCardiffChampionship · England | 0–2 | Championship · England |
| 2018-04-24 | DerbyvCardiffChampionship · England | 3–1 | Championship · England |
| 2018-04-21 | CardiffvNott'm ForestChampionship · England | 2–1 | Championship · England |
| 2018-04-14 | NorwichvCardiffChampionship · England | 0–2 | Championship · England |
| 2018-04-10 | Aston VillavCardiffChampionship · England | 1–0 | Championship · England |
| 2018-04-06 | CardiffvWolvesChampionship · England | 0–1 | Championship · England |
| 2018-04-02 | Sheffield UnitedvCardiffChampionship · England | 1–1 | Championship · England |
| 2018-03-30 | CardiffvBurtonChampionship · England | 3–1 | Championship · England |
| 2018-03-13 | BrentfordvCardiffChampionship · England | 1–3 | Championship · England |
| 2018-03-10 | CardiffvBirminghamChampionship · England | 3–2 | Championship · England |
| 2018-03-06 | CardiffvBarnsleyChampionship · England | 2–1 | Championship · England |
| 2018-02-25 | CardiffvBristol CityChampionship · England | 1–0 | Championship · England |
| 2018-02-21 | IpswichvCardiffChampionship · England | 0–1 | Championship · England |
| 2018-02-17 | CardiffvMiddlesbroughChampionship · England | 1–0 | Championship · England |
| 2018-02-13 | CardiffvBoltonChampionship · England | 2–0 | Championship · England |
| 2018-02-09 | MillwallvCardiffChampionship · England | 1–1 | Championship · England |
| 2018-02-03 | LeedsvCardiffChampionship · England | 1–4 | Championship · England |
| 2018-01-20 | Sheffield WedsvCardiffChampionship · England | 0–0 | Championship · England |
| 2018-01-13 | CardiffvSunderlandChampionship · England | 4–0 | Championship · England |
| 2018-01-01 | QPRvCardiffChampionship · England | 2–1 | Championship · England |