The headline performance data for the Birley Academy can be seen in the table below:
| Performance Measure | 2021/22 (revised) | 2022/23 (actual) |
| Number of pupils at the end of Key Stage 4 | 208 | 205 |
| Number of pupils included in progress measures | 205 | 205 |
| Progress 8 score | -0.55 | -0.31 |
| Attainment 8 score | 40.79 | 37.50 |
| Percentage of pupils who achieved a Grade 5 (strong pass) or above in both English and mathematics at Key Stage 4 | 40% | 33% |
| Percentage of pupils who achieved a Grade 4 (standard Pass) or above in both English and mathematics at key Stage 4 | 58% | 53% |
| Percentage of pupils entered for the English Baccalaureate | 17% | 7% |
| Average point score for English Baccalaureate | 3.39 | 3.17 |
