| Professional Development League | 第20轮 | 2022-05-03 20:00 | Cardiff U23 | 2-1 | Crewe U23 | 0-0 |
| Professional Development League | 第19轮 | 2022-04-25 20:00 | Coventry U23 | 1-2 | Cardiff U23 | 1-0 |
| Professional Development League | 第12轮 | 2022-04-19 20:00 | 查尔顿U23 | 6-1 | Cardiff U23 | 2-1 |
| Professional Development League | 第17轮 | 2022-04-12 00:30 | 赫尔城U23 | 3-0 | Cardiff U23 | 1-0 |
| Professional Development League | 第19轮 | 2022-04-05 20:00 | Cardiff U23 | 2-0 | 巴恩斯利U23 | 1-0 |
| Professional Development League | 第15轮 | 2022-03-18 21:00 | Colchester U23 | 2-1 | Cardiff U23 | 0-1 |
| Professional Development League | 第17轮 | 2022-03-11 21:00 | 沃特福德U23 | 0-2 | Cardiff U23 | 0-1 |
| Professional Development League | 第16轮 | 2022-03-01 21:00 | Cardiff U23 | 1-3 | 布里斯托城U23 | 0-1 |
| Professional Development League | 第14轮 | 2022-02-08 21:00 | Cardiff U23 | 0-2 | 女王公园巡游者U23 | 0-1 |
| Professional Development League | 第6轮 | 2022-02-01 21:00 | 布里斯托城U23 | 3-3 | Cardiff U23 | 2-0 |
| Professional Development League | 第14轮 | 2022-01-25 21:00 | Cardiff U23 | 1-1 | 斯旺西U23 | 0-1 |
| Professional Development League | 第12轮 | 2022-01-11 19:00 | Cardiff U23 | 0-2 | 伊普斯维奇U23 | 0-0 |
| Professional Development League | 第12轮 | 2021-12-10 20:30 | 米尔沃尔U23 | 1-0 | Cardiff U23 | 1-0 |
| Professional Development League | 第11轮 | 2021-12-06 21:00 | Cardiff U23 | 4-0 | 沃特福德U23 | 2-0 |
| Professional Development League | 第10轮 | 2021-11-30 21:00 | Cardiff U23 | 2-0 | Colchester U23 | 2-0 |
| Professional Development League | 第10轮 | 2021-11-23 21:30 | 女王公园巡游者U23 | 1-3 | Cardiff U23 | 1-1 |
| Professional Development League | 第8轮 | 2021-11-02 03:00 | 斯旺西U23 | 1-3 | Cardiff U23 | 1-3 |
| Professional Development League | 第7轮 | 2021-10-26 19:00 | 伊普斯维奇U23 | 1-2 | Cardiff U23 | 0-1 |
| Professional Development League | 第6轮 | 2021-10-19 20:00 | Cardiff U23 | 4-1 | 查尔顿U23 | 3-0 |
| Professional Development League | 第5轮 | 2021-09-27 20:00 | Cardiff U23 | 2-0 | 米尔沃尔U23 | 1-0 |
| Professional Development League | 第4轮 | 2021-09-21 20:00 | Cardiff U23 | 2-0 | 谢菲尔德联队U23 | 1-0 |
| Professional Development League | 第3轮 | 2021-09-10 18:00 | 谢周三U23 | 0-3 | Cardiff U23 | 0-2 |
| Professional Development League | 第2轮 | 2021-08-29 22:00 | Cardiff U23 | 3-1 | Peterborough United U23 | 1-0 |
| Professional Development League | 第1轮 | 2021-08-16 20:00 | Cardiff U23 | 1-0 | 维冈U23 | 0-0 |
| Professional Development League | 第12轮 | 2021-05-03 22:00 | 巴恩斯利U23 | 1-1 | Cardiff U23 | 1-0 |
| Professional Development League | 第11轮 | 2021-04-27 20:00 | Cardiff U23 | 1-6 | Coventry U23 | 1-2 |
| Professional Development League | 第11轮 | 2021-04-24 02:00 | Nottingham U23 | 1-2 | Cardiff U23 | 0-2 |
| Professional Development League | 第10轮 | 2021-04-13 20:00 | Cardiff U23 | 0-2 | 谢菲尔德联队U23 | 0-0 |
| Professional Development League | 第10轮 | 2021-03-23 03:00 | Birmingham U23 | 2-1 | Cardiff U23 | 1-0 |
| Professional Development League | 第9轮 | 2021-03-16 21:00 | 女王公园巡游者U23 | 1-0 | Cardiff U23 | 0-0 |
| Professional Development League | 第9轮 | 2021-03-09 21:00 | Cardiff U23 | 4-0 | 沃特福德U23 | 2-0 |
| Professional Development League | 第8轮 | 2021-03-01 22:00 | Cardiff U23 | 4-5 | 查尔顿U23 | 1-4 |
| Professional Development League | 第8轮 | 2021-02-23 21:00 | 布里斯托城U23 | 0-3 | Cardiff U23 | 0-3 |
| Professional Development League | 第8轮 | 2021-02-16 21:00 | Cardiff U23 | 3-0 | 米尔沃尔U23 | 2-0 |
| Professional Development League | 第7轮 | 2021-02-09 21:00 | Cardiff U23 | 4-1 | Colchester U23 | 3-0 |
| Professional Development League | 第7轮 | 2021-02-02 21:00 | Cardiff U23 | 4-0 | 伊普斯维奇U23 | 2-0 |
| Professional Development League | 第6轮 | 2021-01-19 21:00 | Cardiff U23 | 2-1 | 斯旺西U23 | 0-1 |
| Professional Development League | 第6轮 | 2021-01-11 21:00 | 查尔顿U23 | 4-0 | Cardiff U23 | 0-0 |
| Professional Development League | 第5轮 | 2020-12-22 21:00 | Cardiff U23 | 1-0 | 女王公园巡游者U23 | 0-0 |
| Professional Development League | 第5轮 | 2020-12-15 03:00 | 沃特福德U23 | 2-2 | Cardiff U23 | 2-1 |
| Professional Development League | 第4轮 | 2020-11-28 19:00 | Colchester U23 | | Cardiff U23 | 0-0 |
| Professional Development League | 第4轮 | 2020-11-23 21:00 | 米尔沃尔U23 | | Cardiff U23 | |
| Professional Development League | 第3轮 | 2020-11-10 21:00 | Cardiff U23 | 6-1 | 维冈U23 | 4-0 |
| Professional Development League | 第3轮 | 2020-11-01 21:30 | Crewe U23 | | Cardiff U23 | |
| Professional Development League | 第3轮 | 2020-10-27 21:00 | Cardiff U23 | 2-0 | 赫尔城U23 | 1-0 |
| Professional Development League | 第3轮 | 2020-10-20 21:00 | 谢周三U23 | 1-0 | Cardiff U23 | 0-0 |
| Professional Development League | 第2轮 | 2020-10-06 20:00 | 伊普斯维奇U23 | 2-1 | Cardiff U23 | 1-1 |
| Professional Development League | 第1轮 | 2020-09-22 20:00 | Cardiff U23 | 1-2 | 布里斯托城U23 | 0-1 |
| Professional Development League | 第1轮 | 2020-09-14 20:00 | 斯旺西U23 | 5-1 | Cardiff U23 | 3-0 |
| Professional Development League | 第31轮 | 2020-04-28 02:00 | 维冈U23 | | Cardiff U23 | |
| Professional Development League | 第30轮 | 2020-04-21 02:00 | Cardiff U23 | | 赫尔城U23 | |
| Professional Development League | 第28轮 | 2020-04-13 20:00 | Cardiff U23 | | 伯恩利U23 | |
| Professional Development League | 第29轮 | 2020-04-06 20:00 | Crewe U23 | | Cardiff U23 | |
| Professional Development League | 第27轮 | 2020-03-20 21:00 | 利兹联U23 | | Cardiff U23 | |
| Professional Development League | 第26轮 | 2020-03-16 21:00 | Cardiff U23 | | 女王公园巡游者U23 | |
| Professional Development League | 第22轮 | 2020-03-12 22:00 | 查尔顿U23 | 2-1 | Cardiff U23 | 1-0 |
| Professional Development League | 第8轮 | 2020-03-09 21:00 | Cardiff U23 | 1-1 | 伊普斯维奇U23 | 0-1 |
| Professional Development League | 第24轮 | 2020-03-02 21:00 | Cardiff U23 | 3-1 | 沃特福德U23 | 2-0 |
| Professional Development League | 第22轮 | 2020-02-12 03:00 | Cardiff U23 | 3-2 | 布里斯托城U23 | 1-1 |
| Professional Development League | 第20轮 | 2020-02-03 22:00 | 米尔沃尔U23 | 3-0 | Cardiff U23 | 1-0 |
| Professional Development League | 第20轮 | 2020-01-29 21:00 | 水晶宫U23 | 2-3 | Cardiff U23 | 1-0 |
| Professional Development League | 第7轮 | 2020-01-20 21:00 | Coventry U23 | 1-1 | Cardiff U23 | 0-0 |
| Professional Development League | 第18轮 | 2020-01-13 21:00 | Cardiff U23 | 2-1 | Colchester U23 | 2-0 |
| Professional Development League | 第17轮 | 2020-01-06 21:00 | Cardiff U23 | 0-1 | Coventry U23 | 0-0 |
| Professional Development League | 第16轮 | 2019-12-16 21:00 | 女王公园巡游者U23 | 4-1 | Cardiff U23 | 3-0 |
| Professional Development League | 第15轮 | 2019-12-09 21:00 | 沃特福德U23 | 1-1 | Cardiff U23 | 0-1 |
| Professional Development League | 第13轮 | 2019-11-25 21:00 | Cardiff U23 | 0-0 | 查尔顿U23 | 0-0 |
| Professional Development League | 第12轮 | 2019-11-11 21:00 | 布里斯托城U23 | 2-2 | Cardiff U23 | 2-1 |
| Professional Development League | 第3轮 | 2019-11-04 21:00 | Cardiff U23 | 0-1 | Birmingham U23 | 0-1 |
| Professional Development League | 第11轮 | 2019-10-29 03:00 | Cardiff U23 | 3-0 | 水晶宫U23 | 1-0 |
| Professional Development League | 第9轮 | 2019-10-21 20:00 | Colchester U23 | 0-2 | Cardiff U23 | 0-0 |
| Professional Development League | 第25轮 | 2019-10-14 20:00 | 伊普斯维奇U23 | 3-1 | Cardiff U23 | 2-0 |
| Professional Development League | 第12轮 | 2019-10-07 20:00 | Cardiff U23 | 2-1 | 米尔沃尔U23 | 0-0 |
| Professional Development League | 第5轮 | 2019-09-16 20:00 | 谢周三U23 | 2-3 | Cardiff U23 | 0-1 |
| Professional Development League | 第5轮 | 2019-09-09 20:00 | Cardiff U23 | 1-0 | Bolton U23 | 0-0 |
| Professional Development League | 第3轮 | 2019-08-31 02:00 | Nottingham U23 | 4-1 | Cardiff U23 | 2-0 |
| Professional Development League | 第2轮 | 2019-08-20 19:00 | 巴恩斯利U23 | 3-1 | Cardiff U23 | 3-1 |
| Professional Development League | 第2轮 | 2019-08-12 20:00 | Cardiff U23 | 1-3 | 谢菲尔德联队U23 | |
