Knockout Advancement Calculator

Teams:

Enter the two teams in the same A/B order used for both scorelines.

Rule profile:

Current UEFA-style ties do not use away goals; older and local competitions may use another path.

Leg 1 host:

The other team is treated as the leg 2 host.

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Stage label:

Names the tie in the summary and exports without changing the ruling.

Close-call margin:

Flag a deciding difference at or below this value for a second score and venue check.

Scoreline map cap:

Sets the largest regulation leg 2 goal total shown on each map axis.

Checkpoint	Value	Ruling	Copy
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Check	Status	Detail	Copy
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A two-leg football tie combines two separate match scores into one competition decision. Each team normally hosts once, and regulation goals from both legs form the aggregate score. The team with the higher aggregate advances without consulting any later tiebreak.

A level aggregate does not have one universal outcome. Competition rules may send the tie to extra time, a penalty shoot-out, an away-goals comparison, or a custom combination of those stages. UEFA club competitions removed the away-goals rule from the 2021/22 season, but historical records and other competitions may follow different rules.

Aggregate: Each team's regulation goals from leg 1 plus leg 2.
Away goals: Goals scored while that team was the visiting side, used only when the selected competition rules enable the check.
Extra-time goals: Goals scored after regulation in the second leg. They are added separately and should not be repeated in the leg score.
Shoot-out tally: Successful kicks in the penalty shoot-out. It is never added to match goals or aggregate.

Host order matters only when an away-goals rule is active. Reversing the venues changes which regulation goals count as away goals and which team is away during second-leg extra time. A result is therefore trustworthy only when the score split, host order, and competition handbook all agree.

How to Use This Tool:

Enter match goals and later-stage tallies separately so the selected rule order can be applied once.

Name Team A and Team B, then choose which team hosted leg 1. Keep that A/B order for both scorelines.
Select the Rule profile that matches the competition handbook. Use the custom path only when you can confirm the exact away-goals, extra-time, and penalty sequence.
Enter regulation goals for both legs. Do not include extra-time goals or penalty kicks in these four fields.
Mark extra time or penalties as played only after that stage is complete, then enter only its own goals or successful kicks. A completed shoot-out tally must not be level.
Check Current ruling and the rule audit. Use the second-leg map for possible regulation scorelines, remembering that its cells assume extra time and penalties have not yet been played.

Interpreting Results:

The advancing team and Decision reason should be read together. An aggregate decision makes later-stage entries irrelevant; an away-goals decision depends on the venue order; an extra-time or penalty result applies only after that stage is marked complete.

Extra time next or Penalties next is a pending stage, not a winner.
A close-call flag uses the selected goal or shoot-out margin only as a prompt to recheck scores and venues. It does not change the ruling.
The scoreline map evaluates every possible regulation second-leg score from 0 through the selected cap. Scores above the cap and completed later stages are outside that map.
Confirm the competition handbook whenever away goals or a non-standard sequence is selected. A mathematically consistent answer can still use the wrong competition rule.
The ruling does not retrieve fixtures, confirm official results, or cover abandoned matches, awarded scores, neutral venues, single-leg ties, group standings, best-of series, or reseeding.

Technical Details:

The decision is an ordered rule evaluation. Each stage runs only when every earlier active stage remains level. This order prevents an entered shoot-out or extra-time tally from overriding a tie already settled in regulation.

Rule Core

Regulation aggregates are the sums of each team's two leg scores. Penalty kicks are excluded.

G_{A} = g_{A 1} + g_{A 2}, G_{B} = g_{B 1} + g_{B 2}

Ordered two-leg knockout decision rules
Order	Condition	Decision
1	Regulation aggregates differ.	Higher aggregate advances.
2	Aggregate is level and regulation away goals are enabled and differ.	Higher regulation away-goal total advances.
3	Earlier checks are level and extra time is enabled.	Wait if not played; otherwise add extra-time goals and compare the new aggregate.
4	Aggregate after extra time is level and extra-time away goals are enabled.	Higher away-goal total including second-leg extra time advances.
5	Every earlier active check is level and penalties are enabled.	Wait if not played; otherwise the higher non-level shoot-out tally advances.
6	No active stage separates the teams.	The tie remains unresolved.

Away-goal ownership follows the selected leg 1 host. The other team hosts leg 2. When the historic extra-time away-goal rule is active, only the team visiting in leg 2 can add its extra-time goals to the away-goal total.

Built-in knockout rule profiles
Profile	Away goals	Extra time	Penalties	ET away goals
No away goals · ET · penalties	No	Yes	Yes	No
Away goals · ET · penalties	Yes	Yes	Yes	No
Away goals · penalties	Yes	No	Yes	No
Historic ET away goals	Yes	Yes	Yes	Yes
Aggregate only	No	No	No	No

All score and shoot-out fields accept whole numbers from 0 through 30. The map cap accepts 3 through 8 and creates a square matrix whose axes are Team A and Team B regulation goals in leg 2. Each cell reruns the same rule order with extra time and penalties marked as not played.

Worked Examples:

Level aggregate under modern no-away-goals rules

North City wins the first leg 2–1 and loses the second 0–1. Both teams have two regulation goals on aggregate. Under No away goals · ET · penalties, South United's away goal does not decide the tie; the result is Extra time next.

Penalty shoot-out after every earlier check stays level

Blue FC wins 1–0 at home, then loses 0–1 away. The aggregate and regulation away-goal totals are both level. With Away goals · penalties and a completed 5–4 shoot-out, Blue FC advances by penalties; the shoot-out score is not added to the 1–1 aggregate.

References:

Law 10: Determining the Outcome of a Match, International Football Association Board.
Abolition of the away goals rule in all UEFA club competitions, UEFA, 24 June 2021.