Teams ranked second through fifth in each of the two groups will qualify for the promotion play-off, which will determine the last two promotion spots. The eight qualified teams will be drawn into two fixed brackets, each of which will contain the second and fifth-place finishers from one group and the third and fourth-place finishers from the other. All ties will consist of a two-legged knockout series. In case of draws, an overtime period will be played; if the match is still tied following the overtime, the team which achieved a higher regular season finish will be proclaimed the winner.[1]
Starting with the 2022–23 season, the RFEF recovered the two-legged knockout system, due to the complaints filed against the single knockout system at a neutral venue that had been implemented after COVID-19 and the subsequent reform of the football leagues organized by the RFEF.[2]
Source: [3] Rules for classification: 1) points; 2) head-to-head points; 3) head-to-head goal difference; 4) goal difference; 5) number of goals scored (Note: Head-to-head record is used only after all the matches between the teams in question have been played). Notes:
^ abGimnàstic finished ahead of Barcelona Atlètic on head-to-head points: Gimnàstic 1–0 Barcelona Atlètic, Barcelona Atlètic 1–2 Gimnàstic