What an aggregate score is
An aggregate score is the combined total of goals across a two-legged tie — a knockout contest played as two matches, one at each team's home ground. Instead of a single game deciding who advances, the goals from both legs are added together, and the team with the higher combined total wins. It's the standard format for European knockout rounds like the Champions League.
How two-legged ties work
- Each team hosts one leg (one home match, one away match).
- The scores from both legs are added together to give the aggregate.
- Example: Team A wins the first leg 2-1, Team B wins the second leg 1-0 — the aggregate is 2-2, and the tie is level.
- The two-home-games format is designed for fairness: neither side has a permanent home advantage over the tie.
What happens if the aggregate is level
If the aggregate score is level after both legs, the tie goes to extra time in the second leg, and then a penalty shootout if still level. (See Extra Time Explained and The Penalty Shootout Explained.)
The away goals rule — and why it's gone
For decades, level aggregate ties were often decided by the away goals rule: the team that scored more goals *away from home* advanced. In the 2-2 example above, Team A's goals came away, so Team A would have progressed.
UEFA abolished the away goals rule in 2021. The original logic — that scoring away was harder, so it deserved a tiebreaker — had faded as travel, pitches and tactics evened out. Worse, the rule was discouraging home teams from attacking in first legs (afraid of conceding a costly away goal) and making second-leg home teams overly cautious. Now, a level aggregate simply goes to extra time and penalties, with no weighting for where goals were scored.
Related guides
Frequently asked questions
- What does aggregate score mean in football?
- It's the combined total of goals from a two-legged tie — the goals from both matches added together. The team with the higher aggregate advances.
- How do two-legged ties work?
- Each team hosts one match. The scores from both legs are added together, and the team with the higher combined (aggregate) total wins the tie.
- What happens if the aggregate score is level?
- Since the away goals rule was abolished, a level aggregate goes to extra time in the second leg, then a penalty shootout if still level.
- What was the away goals rule?
- If a two-legged tie was level on aggregate, the team that had scored more goals away from home advanced. UEFA abolished it in 2021.
- Why was the away goals rule scrapped?
- The advantage of playing away had faded, and the rule was making teams too cautious. UEFA removed it in 2021 so level ties are decided purely by extra time and penalties.