2005 Tercera División play-offs
In Portuguese football, The 2005 Tercera División play-offs to Segunda División B from Tercera División (Promotion play-offs) were the final playoffs for the promotion from 2004–05 Tercera División to 2005–06 Segunda División B. In some groups four teams took part in the play-off while other groups have only three.
- The teams highlighted in yellow played the Liguilla de Ascenso to Segunda Division B.
- The teams highlighted in red were relegated to Regional Divisions.
Groups A
- Teams from Galicia, Asturias, Castile and León and Madrid.
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Group A1
- 1st Eliminatory:
| June 5, 2005 Home Matches: | |||
| Coruxo | 0-1 | Real Oviedo | |
| Parla | 1-0 | Real Ávila | 
| June 12, 2005 Away Matches: | |||
| Real Oviedo | 1-0 | Coruxo | Agg:2-0 | 
| Real Ávila | 3-0 | Parla | Agg:3-1 | 
- 2nd Eliminatory:
| June 19, 2005 Home Matches: | |||
| Real Ávila | 1-5 | Real Oviedo | 
| June 25, 2005 Away Match: | |||
| Real Oviedo | 2-0 | Real Ávila | Agg:7-1 | 
- Promoted to Segunda División B:Real Oviedo
 
Group A2
- 1st Eliminatory:
| June 5, 2005 Home Matches: | |||
| Ciempozuelos | 1-0 | Promesas Ponferrada | |
| Mosconia | 1-1 | Negreira | 
| June 12, 2005 Away Matches: | |||
| Promesas Ponferrada | 1-1 | Ciempozuelos | Agg:1-2 | 
| Negreira | 0-0 | Mosconia | Agg:1-1 | 
- 2nd Eliminatory:
| June 19, 2005 Home Matches: | |||
| Ciempozuelos | 0-3 | Negreira | 
| June 26, 2005 Away Match: | |||
| Negreira | 1-2 | Ciempozuelos | Agg:2-4 | 
- Promoted to Segunda División B:Negreira
 
Group A3
- 1st Eliminatory:
| June 5, 2005 Home Matches: | |||
| Valladolid B | 1-0 | Las Rozas | |
| Lugo | 3-0 | Ribadesella | 
| June 12, 2005 Away Matches: | |||
| Las Rozas | 1-2 | Valladolid B | Agg:1-3 | 
| Ribadesella | 1-0 | Lugo | Agg:1-3 | 
- 2nd Eliminatory:
| June 19, 2005 Home Matches: | |||
| Valladolid B | 4-1 | Lugo | 
| June 26, 2005 Away Match: | |||
| Lugo | 0-0 | Valladolid B | Agg:1-4 | 
- Promoted to Segunda División B:Valladolid B
 
Group A4
- 1st Eliminatory:
| June 5, 2005 Home Matches: | |||
| Langreo | 0-0 | Rápido Bouzas | |
| Gimnástica Segoviana | 0-1 | Móstoles | 
| June 12, 2005 Away Matches: | |||
| Móstoles | 2-1 | Gimnástica Segoviana | Agg:2-2 | 
| Rápido Bouzas | 2-0 | Langreo | Agg:2-0 | 
- 2nd Eliminatory:
| June 19, 2005 Home Matches: | |||
| Móstoles | 1-1 | Rápido Bouzas | 
| June 26, 2005 Away Match: | |||
| Rápido Bouzas | 2-2 | Móstoles | Agg:3-3 | 
- Promoted to Segunda División B:Móstoles
 
Groups B
- Teams from Cantabria, Basque Country, Navarre and Aragon.
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Group B1
- 1st Eliminatory:
| June 5, 2005 Home Matches: | |||
| Noja | 1-0 | Portugalete | |
| Mutilvera | 0-1 | Utebo | 
| June 12, 2005 Away Matches: | |||
| Portugalete | 2-0 | Noja | Agg:2-1 | 
| Utebo | 3-2 | Mutilvera | Agg:4-2 | 
- 2nd Eliminatory:
| June 19, 2005 Home Matches: | |||
| Utebo | 0-1 | Portugalete | 
| June 25, 2005 Away Match: | |||
| Portugalete | 4-0 | Utebo | Agg:5-0 | 
- Promoted to Segunda División B:Portugalete
 
Group B2
- 1st Eliminatory:
| June 5, 2005 Home Matches: | |||
| Cultural Durango | 1-0 | Valle de Egüés | |
| Universidad Zaragoza | 1-0 | Escobedo | 
| June 12, 2005 Away Matches: | |||
| Valle de Egüés | 0-0 | Cultural Durango | Agg:0-1 | 
| Escobedo | 2-2 | Universidad Zaragoza | Agg:2-3 | 
- 2nd Eliminatory:
| June 19, 2005 Home Matches: | |||
| Cultural Durango | 1-1 | Universidad Zaragoza | 
| June 26, 2005 Away Match: | |||
| Universidad Zaragoza | 4-1 | Cultural Durango | Agg:5-2 | 
- Promoted to Segunda División B:Cultural Durango
 
Group B3
- 1st Eliminatory:
| June 5, 2005 Home Matches: | |||
| Barreda | 1-2 | Zalla | |
| Fundación Logroñés | 0-1 | Barbastro | 
| June 12, 2005 Away Matches: | |||
| Zalla | 6-0 | Barreda | Agg:8-1 | 
| Barbastro | 1-1 | Fundación Logroñés | Agg:2-1 | 
- 2nd Eliminatory:
| June 19, 2005 Home Matches: | |||
| Zalla | 1-0 | Barbastro | 
| June 26, 2005 Away Match: | |||
| Barbastro | 0-0 | Zalla | Agg:0-1 | 
- Promoted to Segunda División B:Zalla
 
Group B4
- 1st Eliminatory:
| June 5, 2005 Home Matches: | |||
| Sariñena | 0-1 | Racing B | |
| Gernika | 1-2 | Calahorra | 
| June 12, 2005 Away Matches: | |||
| Racing B | 2-0 | Sariñena | Agg:3-0 | 
| Calahorra | 1-2 | Gernika | Agg:3-3//Pen:1-4 | 
- 2nd Eliminatory:
| June 19, 2005 Home Matches: | |||
| Gernika | 0-2 | Racing B | 
| June 26, 2005 Away Match: | |||
| Racing B | 2-2 | Gernika | Agg:4-2 | 
- Promoted to Segunda División B:Racing B
 
Groups C
- Teams from Catalonia, Valencian Community, Balearic Islands and Region of Murcia.
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Group C1
- 1st Eliminatory:
| June 5, 2005 Home Matches: | |||
| Mazarrón | 1-0 | Valencia Mestalla | |
| Sant Andreu | 1-2 | Manacor | 
| June 12, 2005 Away Matches: | |||
| Valencia Mestalla | 2-1 | Mazarrón | Agg:2-2 | 
| Manacor | 0-2 | Sant Andreu | Agg:2-3 | 
- 2nd Eliminatory:
| June 19, 2005 Home Matches: | |||
| Mazarrón | 2-1 | Sant Andreu | 
| June 26, 2005 Away Match: | |||
| Sant Andreu | 2-0 | Mazarrón | Agg:3-2 | 
- Promoted to Segunda División B:Sant Andreu
 
Group C2
- 1st Eliminatory:
| June 5, 2005 Home Matches: | |||
| Sporting Mahonés | 2-2 | L'Hospitalet | |
| Eldense | 1-0 | Sangonera Atlético | 
| June 12, 2005 Away Matches: | |||
| L'Hospitalet | 3-1 | Sporting Mahonés | Agg:5-2 | 
| Sangonera Atlético | 2-0 | Eldense | Agg:2-1 | 
- 2nd Eliminatory:
| June 19, 2005 Home Matches: | |||
| Sangonera Atlético | 1-2 | L'Hospitalet | 
| June 26, 2005 Away Match: | |||
| L'Hospitalet | 3-0 | Sangonera Atlético | Agg:5-1 | 
- Promoted to Segunda División B:L'Hospitalet
 
Group C3
- 1st Eliminatory:
| June 5, 2005 Home Matches: | |||
| Mar Menor | 1-1 | Gandía | |
| Reus | 1-0 | Constancia | 
| June 12, 2005 Away Matches: | |||
| Gandía | 2-2 | Mar Menor | Agg:3-3 | 
| Constancia | 0-2 | Reus | Agg:0-3 | 
- 2nd Eliminatory:
| June 19, 2005 Home Matches: | |||
| Reus | 2-0 | Mar Menor | 
| June 26, 2005 Away Match: | |||
| Mar Menor | 3-4 | Reus | Agg:6-3 | 
- Promoted to Segunda División B:Reus
 
Group C4
- 1st Eliminatory:
| June 5, 2005 Home Matches: | |||
| Santa Pola | 0-3 | Águilas | |
| Santa Eulàlia | 0-1 | Mataró | 
| June 12, 2005 Away Matches: | |||
| Águilas | 2-2 | Santa Pola | Agg:5-2 | 
| Mataró | 0-0 | Santa Eulàlia | Agg:1-0 | 
- 2nd Eliminatory:
| June 19, 2005 Home Matches: | |||
| Mataró | 1-1 | Águilas | 
| June 26, 2005 Away Match: | |||
| Águilas | 1-0 | Mataró | Agg:2-1 | 
- Promoted to Segunda División B:Águilas
 
Groups D
- Teams from Andalusia, Extremadura, and Castile-La Mancha.
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Group D1
- 1st Eliminatory:
| June 5, 2005 Home Matches: | |||
| Roquetas | 1-1 | Albacete B | |
| Balompédica Linense | 2-1 | Mérida | 
| June 12, 2005 Away Matches: | |||
| Albacete B | 1-3 | Roquetas | Agg:2-4 | 
| Mérida | 1-0 | Balompédica Linense | Agg:2-2 | 
- 2nd Eliminatory:
| June 19, 2005 Home Matches: | |||
| Roquetas | 1-3 | Mérida | 
| June 26, 2005 Away Match: | |||
| Mérida | 0-1 | Roquetas | Agg:3-2 | 
- Promoted to Segunda División B:Mérida
 
Group D2
- 1st Eliminatory:
| June 5, 2005 Home Matches: | |||
| Racing Portuense | 1-5 | Villanovense | |
| Talavera | 2-3 | Baza | 
| June 12, 2005 Away Matches: | |||
| Villanovense | 2-2 | Racing Portuense | Agg:7-3 | 
| Baza | 1-2 | Talavera | Agg:4-4 | 
- 2nd Eliminatory:
| June 19, 2005 Home Matches: | |||
| Villanovense | 1-2 | Baza | 
| June 26, 2005 Away Match: | |||
| Baza | 4-1 | Villanovense | Agg:6-2 | 
- Promoted to Segunda División B:Baza
 
Group D3
- 1st Eliminatory:
| June 5, 2005 Home Matches: | |||
| Gimnástico Alcázar | 3-1 | Torredonjimeno | |
| Moralo | 2-1 | Villanueva | 
| June 12, 2005 Away Matches: | |||
| Torredonjimeno | 3-1 | Gimnástico Alcázar | Agg:4-4//Pen:3-1 | 
| Villanueva | 2-0 | Moralo | Agg:3-2 | 
- 2nd Eliminatory:
| June 19, 2005 Home Matches: | |||
| Torredonjimeno | 2-4 | Villanueva | 
| June 26, 2005 Away Match: | |||
| Villanueva | 1-0 | Torredonjimeno | Agg:5-2 | 
- Promoted to Segunda División B:Villanueva
 
Group D4
- 1st Eliminatory:
| June 5, 2005 Home Matches: | |||
| Alhaurino | 1-1 | Almansa | |
| Cerro Reyes | 0-0 | Los Barrios | 
| June 12, 2005 Away Matches: | |||
| Almansa | 3-1 | Alhaurino | Agg:4-2 | 
| Los Barrios | 2-2 | Cerro Reyes | Agg:2-2 | 
- 2nd Eliminatory:
| June 19, 2005 Home Matches: | |||
| Cerro Reyes | 0-3 | Almansa | 
| June 26, 2005 Away Match: | |||
| Almansa | 3-1 | Cerro Reyes | Agg:6-1 | 
- Promoted to Segunda División B:Cerro Reyes