2017–18 Hoofdklasse

The 2017–18 season of the Hoofdklasse was played in four leagues, two Saturday leagues and two Sunday leagues. The champions of each group promote directly to the 2018–19 Derde Divisie. The 2017–18 Hoofdklasse started on Saturday 2 September 2017.

Promotion
In each competition teams play periods of 10 games, three times per season (30 games per season). After each period the best team which has not yet qualified earns a spot in the play-offs for the Derde Divisie as the period champion. 6 teams from the Saturday Hoofdklasse play against 2 teams from the Saturday Derde Divisie for 2 promotion spots. The teams from the Sunday leagues do the same.

Relegation
The teams in place 13 and 14 at the end of the season fight against relegation in the relegation play-offs. They face the period champions of the Eerste Klasse.

Saturday
The numbers 15 and 16 from the 2017–18 Derde Divisie Saturday and 3 (substitute) period winners of each of the 2017–18 Hoofdklassen Saturday, making 8 teams, decided in a 2-round knockout system of which 2 teams play next season in the 2018–19 Derde Divisie Saturday. The remaining 6 teams play next season in the 2018–19 Hoofdklasse Saturday.

Results
SteDoCo and Hoek promoted to the 2018-19 Derde Divisie Saturday.

VV Spijkenisse relegated to the 2018-19 Hoofdklasse Saturday.

Capelle and Ajax (amateurs) played an extra match.

The other teams remained in the 2018-19 Hoofdklasse Saturday.

Extra match
Because Jong Twente decided at the end of season to withdraw from the Derde Divisie Saturday and to continue in the league for reserve teams only, an extra spot became available in the Derde Divisie Saturday. Therefore the two teams who lost in the second round of the play-offs were given a second chance. In an extra match, on neutral ground, these teams competed for the spot that became available.

Ajax (amateurs) promoted to the 2018-19 Derde Divisie Saturday.

Capelle relegated to the 2018-19 Hoofdklasse Saturday.

Sunday
The numbers 15 and 16 from the 2017–18 Derde Divisie Sunday and 3 (substitute) period winners of each of the 2017–18 Hoofdklassen Sunday, making 8 teams, decided in a 2-round knockout system which 2 teams play next season in the 2018–19 Derde Divisie Sunday. The remaining 6 teams play next season in the 2018–19 Hoofdklasse Sunday.

Results
GOES promoted to the 2018-19 Derde Divisie Sunday.

Quick '20 maintained in the 2018-19 Derde Divisie Sunday.

Be Quick 1887 relegated to the 2018-19 Hoofdklasse Sunday.

The other teams remained in the 2018-19 Hoofdklasse Sunday.

Saturday
The numbers 13 and 14 from each of the 2017–18 Hoofdklasse Saturday leagues (2 times 2 teams) and 3 (substitute) period winners of each of the 2017–18 Eerste Klasse Saturday leagues (5 times 3 teams), making 19 teams, decided in a 3-round single match knockout system of which 3 teams play next season in the 2018–19 Hoofdklasse Saturday leagues. The remaining 16 teams play next season in the 2018–19 Eerste Klasse Saturday leagues.

Out of the 4 Hoofdklasse teams and the 5 highest ranked period winners (9 teams total), 5 teams were excluded by draw from playing the first round.

Home advantage was decided by a draw.

Results
DETO, WHC and Flevo Boys promoted to the 2018-19 Hoofdklasse Saturday.

AFC, Rijsoord, HZVV and Huizen relegated to the 2018-19 Eerste Klasse Saturday.

XerxesDZB, Sportlust '46 and Brielle played extra matches.

The other teams remained in the 2018-19 Eerste Klasse Saturday.

Extra matches
Because Jong Twente decided, at the end of season, to withdraw from the Derde Divisie Saturday and to continue in the league for reserve teams only, an extra spot became available in the Derde Divisie Saturday. This caused a repeated pattern of an extra available spot for all lower Saturday tiers of the pyramid. Therefore the three teams who lost in the third round of the play-offs were given a second chance. In extra matches, each team playing one match at home and one match away, these teams competed for the spot that became available in the 2018-19 Hoofdklasse Saturday.

XerxesDZB promoted to the 2018-19 Derde Divisie Saturday.

Brielle and Sportslust '46 remained in the 2018-19 Hoofdklasse Saturday.

Sunday
The numbers 13 and 14 from each of the 2017–18 Hoofdklasse Sunday leagues (2 times 2 teams) and 3 (substitute) period winners of each of the 2017–18 Eerste Klasse Sunday leagues (6 times 3 teams), making 22 teams, decided in a 4-round single match knockout system of which 2 teams play next season in the 2018–19 Hoofdklasse Sunday leagues. The remaining 20 teams play next season in the 2018–19 Eerste Klasse Sunday leagues.

The 4 Hoofdklasse teams and the 6 highest ranked period winners (10 teams total) were excluded from playing the first round. In the first round the second best and lowest ranked period winners (of each Eerste Klasse separate) meet each other, where the lowest ranked period winner has home advantage.

In the second round home advantage was decided by draw.

Results
Hoogland and Alcides promoted to the 2018-19 Hoofdklasse Sunday.

Sneek Wit Zwart, DHC Delft, Juliana '31 and BVC '12 relegated to the 2018-19 Eerste Klasse Sunday.

HVCH and DEM played an extra match.

The other teams remained in the 2018-19 Eerste Klasse Sunday.

Extra match
Because Jong De Graafschap, relegated from Derde Divisie, decided at the end of season to withdraw from the Hoofdklasse for next season and to continue in the league for reserve teams only, an extra spot became available in the Hoofdklasse Sunday leagues. Therefore the two teams who lost in the fourth round of the play-offs were given a second chance. In an extra match, on neutral ground, these teams competed for the spot that became available.

DEM promoted to the 2018-19 Hoofdklasse Sunday.

HVCH remained in the 2018-19 Eerste Klasse Sunday.