A total of 34 rounds.
Between 1897 and 1950 the Dutch Football League was actually a tournament for the champions of the four regional leagues, and in 1950 the Dutch Football Association organized the first national league, dividing the six leagues of the four regional leagues into five groups, with each group also adopting a two-legged home-and-away system, and the winners of each of the five groups deciding on the winning team by means of a league match.
It was not until 1956 that the Dutch Football Association officially established a national league with a home-and-away system and abolished the Champions' Extra League, now known as the Dutch Football First Division. Upon completion of the season, the league champions directly qualify for the group stage of the next season's UEFA Champions League, while the runners-up need to participate in the qualifying rounds of the next season's UEFA Champions League. In addition, the 3rd and 4th places in the league qualify for the Europa League the following season.
Extended Information:
The relevant requirements of the Dutch League stipulate:
1. The team at the bottom of the league table (18th place) will be relegated directly to the Second Division. Meanwhile, the champion of League B will get the direct promotion place for the next season. Teams ranked 16th and 17th will play promotion/relegation play-offs with teams ranked 2-7 in League Two.
2. The two relegated teams, both seeded in their respective groups, play a double round-robin mini-tournament against three Second Division teams. The winner of each group qualifies for the next season's First Division, while the remaining teams play in the next season's Second Division.
3. The team with the most league titles is Ajax FC with 33. This is followed by PSV Eindhoven with 21 and Feyenoord with 14. Since 1965, there have only been three league titles that were not won by the above three clubs.
