The Hidden Advantage in the Academy System
Football academies chase talent, but the calendar may be quietly shaping who gets picked. In English football, the selection year runs from September to August. A child born in September can be almost a full year older than a teammate born the following August, and at youth level that gap shows up in size, strength and speed.
This is known as the Relative Age Effect (RAE): players born early in the selection year are more likely to be chosen, kept and developed.
What the Numbers Show
Birthday analysis (as at 9 February 2026) compared EFL academy players with one club’s academy and professional squads.
| Birth window | EFL academy | Club academy | EFL professionals | Club professionals |
|---|---|---|---|---|
| Sept-Nov | 46% | 48% | 34% | 33% |
| Dec-Feb | 26% | 24% | 26% | 20% |
| Mar-May | 17% | 16% | 22% | 41% |
| Jun-Aug | 11% | 13% | 18% | 6% |
1. Academies lean heavily towards the early-born
Across the EFL, 46% of academy players were born in the first three months of the selection year, against just 11% born in the last three. That is more than four times as many.
2. The club’s academy mirrors the national picture
At 48% versus 13%, the club’s academy sits very close to the EFL average. The effect there is strong but not unusual.
3. The advantage fades in the professional game
Among EFL professionals, the spread is much flatter: 34% born September to November and 18% born June to August. Late-born players who survive the academy filter often catch up, and some go on to thrive.
4. One striking outlier
In the club’s professional squad, 41% were born in March to May, while only 6% were born in the summer months. The squad is small, so one or two players can swing the percentages, but it hints at a possible “late bloomer” pattern worth investigating.
Why It Matters
- Talent is being missed. If selection favours the physically mature, technically gifted late-born players may be released early.
- Development is not the same as maturity. Coaches who separate the two make better long-term decisions.
- Solutions exist. Birthday-banded games, maturation-based grouping and bio-banding are all designed to level the field.
The Takeaway
The data is a reminder that talent identification is partly a calendar problem. Clubs that spot and correct the Relative Age Effect will not just be fairer. They will find players their rivals overlooked.
