Champions League Format Explained: How the Swiss-Model League Phase and Knockouts Work
From the 2024-25 season, the UEFA Champions League underwent its biggest structural overhaul in decades: the long-standing group stage was scrapped entirely and replaced by a single Swiss-model league phase of 36 teams. For fans used to “four-team groups played home and away,” the new rules on qualification, fixtures and progression all need re-learning. This guide, based on UEFA’s official regulations, explains exactly how the new format works.
The League Phase: 36 Teams, One Table
The central change is merging the old eight groups into one unified standings table. The 36 teams are no longer split into groups but ranked together, much like a Swiss-system tournament. Each club plays eight matches — four at home and four away — against eight different opponents. For the draw, teams are placed into four seeding pots by UEFA coefficient, and each side draws two opponents from every pot, one home and one away, ensuring a balanced spread of stronger and weaker rivals.
Qualification: The Top Eight Go Through
Once the league phase ends, the final standings decide everything. The top eight teams advance directly to the round of 16 as seeded sides, skipping the extra round. Teams finishing 9th to 24th enter a two-legged knockout play-off round: 9th-16th are seeded, 17th-24th are unseeded, and they are paired off. The eight play-off winners join the round of 16 draw as unseeded teams alongside the top eight.
Elimination and the European Route
Teams finishing 25th to 36th in the league phase, together with the eight play-off losers, are eliminated outright. Crucially, under the new format there is no longer a “drop into the Europa League” from the league phase onwards — once you are out, your European campaign for the season is over. This raises the stakes on every league-phase match, forcing mid- and lower-table sides to fight for every point.
Schedule and Viewing Notes
Per the official calendar, the league phase runs from September to January, while the knockout phase begins in February, with matches predominantly on Tuesday and Wednesday nights. Because 36 teams share one table and positions stay tight, the race for points late in the phase is often fierce, and a single result can reshape several teams’ fates. Understanding this structure helps fans track the key moments across a long season.
FAQ
How many matches does each team play in the league phase?
Eight — four home and four away against eight different opponents, all counting toward the single 36-team table.
How do teams qualify after the league phase?
The top eight go straight to the round of 16; teams 9th-24th contest two-legged play-offs, with winners advancing; teams 25th-36th are eliminated.
Can teams still drop into the Europa League?
No. From the league phase onwards, elimination ends the European season entirely, with no route into the Europa League.
Explore more in our analysis section, or see the full fixtures and results page.
