2018–19 Plunket Shield season

Unlike the previous edition of the competition, the tournament featured eight rounds of matches, instead of ten.

[4] Up to eleven international players, including New Zealand's captain Kane Williamson, were available for the opening round of the tournament.

[8] Ahead of the final round of fixtures, Central Districts had a fifteen point lead over Canterbury, needing just five more points to win the competition and retain their title.

[9] However, following the Christchurch mosque shootings, Canterbury withdrew from their final game, against Wellington, therefore Central Districts retained their title.

[10] It was the first time in more than fifty years that Central Districts had won back-to-back titles.