As a football fan living in Spain for many years, the Copa del Rey is the competition I look forward to most every year. This tournament is not only rich in history but also a crucial part of Spanish football culture. Today, let’s talk in detail about the competition rules of the Copa del Rey.
Eligibility and Team Composition
The Copa del Rey has a very broad eligibility, which is part of its charm. All 20 teams from La Liga automatically qualify, and the 22 teams from Segunda División also enter directly. In addition, there are teams from Segunda División B, Tercera División, as well as various regional leagues who earn their spots through preliminary rounds, as detailed in the Spanish Sports Football Competition Rules. Approximately 116 teams participate in this national football feast, from top-level giants like Real Madrid and Barcelona to amateur clubs unknown to most, all having the chance to compete on the same stage.

Detailed Format Process
The Copa del Rey uses a single-elimination format, which means every match is a do-or-die battle, with no two-legged home and away matches for buffering. The schedule is as follows:
| Round | Number of Teams | Match Format | Time |
| First round | 116 teams | Single elimination | Late October |
| Second round | 58 teams | Single elimination | Mid November |
| Third round | 32 teams | Single elimination | December |
| Round of 16 | 16 teams | Single elimination | January |
| Quarterfinals | 8 teams | Single elimination | February |
| Semifinals | 4 teams | Single elimination | March |
| Final | 2 teams | Single elimination | April-May |
Draw Rules and Home Advantage
The draw rules are the most controversial yet interesting part of the Copa del Rey. Lower-ranked teams enjoy home advantage, giving smaller clubs an opportunity to create miracles. Specifically, teams from Segunda División B and below have home advantage when facing higher-level opponents. When teams of the same level face each other, the home team is determined by a draw.
This design is very considerate, allowing smaller teams to face giants on their home turf and often produce memorable matches. A few years ago, a Tercera División team managed a home draw against Real Madrid—a classic encounter whose atmosphere is truly indescribable.
Special Regulations and Notes
The Copa del Rey also has some special rules worth noting. If the match is tied after 90 minutes, it goes straight to a 30-minute extra time. If still tied after extra time, the winner is decided by a penalty shootout. Unlike league matches where draws are accepted, cup games must produce a winner.
Since the 2019-20 season, the Copa del Rey final is no longer fixed in Madrid but rotates among major cities in Spain, allowing fans from more locations to witness this important final live. Besides the trophy, the champion team directly qualifies for the next season’s UEFA Europa League, which is a significant motivation for mid-table teams.