The 1999 Tercera División play-offs to Segunda División B from Tercera División (Promotion play-offs) were the final playoffs for the promotion from 1998–99 Tercera División to 1999–2000 Segunda División B. The first four teams in each group (excluding reserve teams) took part in the play-off. 
   The 68 participating teams were divided into 5 series each made up of 4 groups in the category, with the exception of  Series E , which was only formed by  Group XII . Each series was divided into 4 groups formed by a 1st, a 2nd, a 3rd and a 4th classified from each group, which played a double-round playoff. Each victory was equivalent to 3 points, the tie to 1 point and the defeat to 0 points. The champion of each group obtained the promotion to Second Division B. 
The distribution of each series was as follows: 
  Teams for 1998–99 play-offs
  
 
     Tables and Results
 Group A-1
     Updated to match(es) played on completed. Source: 
FutbolMeLegend: Blue = home team win; Yellow = draw; Red = away team win.
 Group A-2
     Updated to match(es) played on completed. Source: 
FutbolMeLegend: Blue = home team win; Yellow = draw; Red = away team win.
 Group A-3
     Updated to match(es) played on completed. Source: 
FutbolMeLegend: Blue = home team win; Yellow = draw; Red = away team win.
 Group A-4
     Updated to match(es) played on completed. Source: 
FutbolMeLegend: Blue = home team win; Yellow = draw; Red = away team win.
 Group B-1
     Updated to match(es) played on completed. Source: 
FutbolMeLegend: Blue = home team win; Yellow = draw; Red = away team win.
 Group B-2
     Updated to match(es) played on completed. Source: 
FutbolMeLegend: Blue = home team win; Yellow = draw; Red = away team win.
 Group B-3
     Updated to match(es) played on completed. Source: 
FutbolMeLegend: Blue = home team win; Yellow = draw; Red = away team win.
 Group B-4
     Updated to match(es) played on completed. Source: 
FutbolMeLegend: Blue = home team win; Yellow = draw; Red = away team win.
 Group C-1
     Updated to match(es) played on completed. Source: 
FutbolMeLegend: Blue = home team win; Yellow = draw; Red = away team win.
 Group C-2
     Updated to match(es) played on completed. Source: 
FutbolMeLegend: Blue = home team win; Yellow = draw; Red = away team win.
 Group C-3
     Updated to match(es) played on completed. Source: 
FutbolMeLegend: Blue = home team win; Yellow = draw; Red = away team win.
 Group C-4
     Updated to match(es) played on completed. Source: 
FutbolMeLegend: Blue = home team win; Yellow = draw; Red = away team win.
 Group D-1
     Updated to match(es) played on completed. Source: 
FutbolMeLegend: Blue = home team win; Yellow = draw; Red = away team win.
 Group D-2
     Updated to match(es) played on completed. Source: 
FutbolMeLegend: Blue = home team win; Yellow = draw; Red = away team win.
 Group D-3
     Updated to match(es) played on completed. Source: 
FutbolMeLegend: Blue = home team win; Yellow = draw; Red = away team win.
 Group D-4
     Updated to match(es) played on completed. Source: 
FutbolMeLegend: Blue = home team win; Yellow = draw; Red = away team win.
 Group E
     Updated to match(es) played on completed. Source: 
FutbolMeLegend: Blue = home team win; Yellow = draw; Red = away team win.
   | Group I – Galicia    Group II – Asturias    Group III – Cantabria    Group IV – Basque Country    Group V – Catalonia    Group VI – Valencian Community .svg.png)  | Group VII – Community of Madrid    Group VIII – Castile and León    Group IX – E. Andalusia and Melilla     Group X – W. Andalusia and Ceuta     Group XI – Balearic Islands    Group XII – Canary Islands    | Group XIII – Region of Murcia    Group XIV – Extremadura  .svg.png)  Group XV – Navarre and La Rioja   .svg.png)  Group XVI – Aragon    Group XVII – Castilla–La Mancha    | 
 External links
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