# 2018 Segunda División play-offs

The 2017–18 Segunda División play-offs were played from June 6 to June 17, 2018 and determined the third team which would be promoted to the top division. Teams placed between 3rd and 6th position excluding reserve teams took part in the promotion play-offs.
Valladolid achieved promotion.

## Regulations

The regulations were the same as the previous season: in the semi-finals, the fifth-placed team faced the fourth-placed team, while the sixth-placed team faced the third. Each tie was played over two legs, with the team lower in the table hosting the first leg.
The team that scored more goals on aggregate over the two legs advanced to the next round. If the aggregate score was level, the away goals rule was applied (i.e., the team that scored more goals away from home over the two legs advanced). If away goals were also equal, then thirty minutes of extra time would be played. The away goals rule would again be applied after extra time (i.e., if there were goals scored during extra time and the aggregate score was still level, the visiting team advanced by virtue of more away goals scored). If no goals were scored during extra time, the winner would be the best positioned team in the regular season.

## Road to the play-offs

| Pos | Teamvte | Pld | W | D | L | GF | GA | GD | Pts | Promotion, qualification or relegation |
| 3 | Zaragoza | 42 | 20 | 11 | 11 | 57 | 44 | +13 | 71 | Qualification for promotion play-offs |
| 4 | Sporting Gijón | 42 | 21 | 8 | 13 | 60 | 40 | +20 | 71 | Qualification for promotion play-offs |
| 5 | Valladolid (O, P) | 42 | 19 | 10 | 13 | 69 | 55 | +14 | 67 | Qualification for promotion play-offs |
| 6 | Numancia | 42 | 18 | 11 | 13 | 52 | 41 | +11 | 65 | Qualification for promotion play-offs |
* 1 2 Zaragoza finished ahead of Sporting Gijón on head-to-head points: Sporting Gijón 0–1 Zaragoza, Zaragoza 2–1 Sporting Gijón
* ↑ Numancia finished ahead of Oviedo on head-to-head goal difference: Oviedo 3–1 Numancia, Numancia 3–0 Oviedo

## Bracket

| Semi-finals | Semi-finals | Semi-finals | Semi-finals | Final | Final | Final | Final |
| Numancia | 1 | 2 | 3 |
| Zaragoza | 1 | 1 | 2 | | | | |
| Zaragoza | 1 | 1 | 2 | Numancia | 0 | 1 | 1 |
| | | | | Valladolid | 3 | 1 | 4 |
| Valladolid | 3 | 2 | 5 | Valladolid | 3 | 1 | 4 |
| Sporting Gijón | 1 | 1 | 2 | | | | |

### Semi-finals

| Team 1 | Agg.Tooltip Aggregate score | Team 2 | 1st leg | 2nd leg |
| Numancia | 3–2 | Zaragoza | 1–1 | 2–1 |
| Valladolid | 5–2 | Sporting Gijón | 3–1 | 2–1 |

#### First legs

| Numancia | Zaragoza |
| GK | 13 | Aitor Fernández |
| LB | 2 | Saúl |
| CB | 8 | Alberto Escassi |
| CB | 16 | Carlos | 28' |
| RB | 15 | Markel Etxeberria |
| CM | 6 | Iñigo Pérez |
| CM | 24 | Pape Diamanka |
| LW | 21 | Marc Mateu |
| AM | 12 | Pere Milla | | 82' |
| RW | 17 | Unai Medina | | 73' |
| CF | 19 | Guillermo | | 70' |
| Substitutions: ||
| GK | 30 | Gaizka Campos |
| DF | 5 | Dani Calvo |
| FW | 9 | Higinio | | 70' |
| MF | 10 | Julio Álvarez | | 82' |
| FW | 11 | Nacho |
| MF | 22 | Pablo Larrea |
| MF | 23 | Dani Nieto | | 73' |
| Manager: ||
| Jagoba Arrasate ||
| GK | 1 | Cristian Álvarez |
| LB | 17 | Daniel Lasure |
| CB | 5 | Diogo Verdasca |
| CB | 6 | Simone Grippo |
| RB | 22 | Julián Delmás |
| CM | 16 | Íñigo Eguaras |
| LW | 21 | Alberto Zapater | 81' |
| RW | 10 | Javi Ros | | 62' |
| AM | 19 | Giorgi Papunashvili | 41' | 71' |
| LF | 8 | Jorge Pombo | 35' | 86' |
| RF | 9 | Borja Iglesias |
| Substitutions: ||
| GK | 13 | Álvaro Ratón |
| DF | 2 | Alberto Benito |
| MF | 14 | Aleix Febas | | 62' |
| MF | 15 | Oliver Buff | | 71' |
| FW | 23 | Gaizka Toquero | | 86' |
| DF | 24 | Mikel González |
| MF | 33 | Pep Biel |
| Manager: ||
| Natxo González ||
| Valladolid | Sporting Gijón |
| GK | 1 | Jordi Masip |
| LB | 22 | Nacho |
| CB | 4 | Kiko Olivas |
| CB | 5 | Fernando Calero |
| RB | 17 | Javi Moyano |
| CM | 8 | Borja Fernández | 62' |
| CM | 35 | Anuar | | 90' |
| LW | 19 | Toni Villa | | 74' |
| AM | 23 | Óscar Plano |
| RW | 11 | Pablo Hervías | | 79' |
| CF | 9 | Jaime Mata | 83' |
| Substitutions: ||
| GK | 13 | Isaac Becerra |
| DF | 3 | Borja Herrera |
| FW | 7 | Giannis Gianniotas | | 79' |
| MF | 10 | Javier Ontiveros | 80' | 74' |
| DF | 14 | Toni Martínez |
| DF | 18 | Antoñito |
| MF | 44 | Javi Pérez | | 90' |
| Manager: ||
| Sergio González ||
| GK | 13 | Diego Mariño |
| LB | 15 | Roberto Canella |
| CB | 5 | Federico Barba |
| CB | 29 | Juan Rodríguez |
| RB | 25 | Jordi Calavera | 90+1' |
| CM | 4 | Álex Bergantiños |
| CM | 6 | Sergio Álvarez | 28' |
| LW | 16 | Jony |
| AM | 14 | Rubén García | | 86' |
| RW | 10 | Carlos Carmona | 34' |
| CF | 7 | Michael Santos |
| Substitutions: ||
| GK | 1 | Óscar Whalley |
| FW | 9 | Carlos Castro |
| DF | 11 | Alberto Lora |
| MF | 17 | Álex López | | 86' |
| DF | 18 | Isma López |
| DF | 20 | Juan Sebastián Quintero |
| MF | 22 | Pablo Pérez |
| Manager: ||
| José Ramón Rodríguez ||

#### Second legs

| Zaragoza | Numancia |
| GK | 1 | Cristian Álvarez |
| LB | 17 | Daniel Lasure |
| DF | 24 | Mikel González | 72' |
| CB | 6 | Simone Grippo |
| RB | 2 | Alberto Benito |
| CM | 16 | Íñigo Eguaras |
| LW | 21 | Alberto Zapater | 82' |
| RW | 14 | Aleix Febas | | 83' |
| AM | 19 | Giorgi Papunashvili |
| LF | 9 | Borja Iglesias |
| RF | 23 | Gaizka Toquero | | 63' |
| Substitutions: ||
| GK | 13 | Álvaro Ratón |
| DF | 4 | Bruno Perone |
| FW | 8 | Jorge Pombo | | 63' |
| MF | 10 | Javi Ros |
| MF | 15 | Oliver Buff | | 83' |
| DF | 22 | Julián Delmás |
| MF | 33 | Pep Biel |
| Manager: ||
| Natxo González ||
| GK | 13 | Aitor Fernández | 80' |
| LB | 2 | Saúl |
| CB | 4 | Unai Elgezabal | 41' |
| CB | 16 | Carlos |
| RB | 15 | Markel Etxeberria |
| CM | 24 | Pape Diamanka |
| CM | 8 | Alberto Escassi | 38' |
| LW | 21 | Marc Mateu | | 82' |
| AM | 6 | Iñigo Pérez |
| RW | 17 | Unai Medina | | 8' |
| CF | 9 | Higinio | | 61' |
| Substitutions: ||
| GK | 30 | Gaizka Campos |
| DF | 3 | Adrián Ripa |
| DF | 5 | Dani Calvo |
| MF | 10 | Julio Álvarez |
| FW | 11 | Nacho | | 8' |
| FW | 12 | Pere Milla | | 82' |
| FW | 19 | Guillermo | | 61' |
| Manager: ||
| Jagoba Arrasate ||
| Sporting Gijón | Valladolid |
| GK | 13 | Diego Mariño |
| LB | 18 | Isma López |
| CB | 5 | Federico Barba |
| CB | 24 | Álex Pérez |
| RB | 11 | Alberto Lora |
| CM | 4 | Álex Bergantiños | 70' | 79' |
| CM | 6 | Sergio Álvarez |
| LW | 16 | Jony |
| AM | 14 | Rubén García | | 63' |
| RW | 10 | Carlos Carmona | | 74' |
| CF | 7 | Michael Santos |
| Substitutions: ||
| GK | 1 | Óscar Whalley |
| DF | 15 | Roberto Canella |
| MF | 17 | Álex López | 82' | 79' |
| FW | 19 | Nano | | 63' |
| MF | 22 | Pablo Pérez | | 74' |
| DF | 25 | Jordi Calavera |
| DF | 29 | Juan Rodríguez |
| Manager: ||
| Rubén Baraja ||
| GK | 1 | Jordi Masip |
| LB | 22 | Nacho |
| CB | 4 | Kiko Olivas |
| CB | 5 | Fernando Calero |
| RB | 17 | Javi Moyano |
| CM | 8 | Borja Fernández |
| CM | 21 | Míchel | 69' |
| LW | 19 | Toni Villa |
| AM | 23 | Óscar Plano |
| RW | 11 | Pablo Hervías | 77' |
| CF | 9 | Jaime Mata | 82' |
| Substitutions: ||
| GK | 13 | Isaac Becerra |
| DF | 3 | Borja Herrera |
| FW | 7 | Giannis Gianniotas |
| MF | 10 | Javier Ontiveros |
| DF | 14 | Toni Martínez | 82' |
| DF | 18 | Antoñito | 77' |
| CM | 35 | Anuar | 69' |
| Manager: ||
| Sergio González ||

### Final

| Team 1 | Agg.Tooltip Aggregate score | Team 2 | 1st leg | 2nd leg |
| Numancia | 1–4 | Valladolid | 0–3 | 1–1 |

#### First leg

| Numancia | Valladolid |
| GK | 13 | Aitor Fernández |
| LB | 2 | Saúl |
| CB | 8 | Alberto Escassi |
| CB | 16 | Carlos | 50' |
| RB | 15 | Markel Etxeberria |
| CM | 6 | Iñigo Pérez |
| CM | 24 | Pape Diamanka |
| LW | 21 | Marc Mateu | | 59' |
| AM | 12 | Pere Milla | | 74' |
| RW | 20 | Pablo Valcarce | 20' | 45' |
| CF | 19 | Guillermo |
| Substitutions: ||
| GK | 30 | Gaizka Campos |
| MF | 3 | Adrián Ripa |
| DF | 5 | Dani Calvo |
| FW | 9 | Higinio | | 59' |
| MF | 10 | Julio Álvarez | | 74' |
| FW | 11 | Nacho | | 45' |
| MF | 22 | Pablo Larrea |
| Manager: ||
| Jagoba Arrasate ||
| GK | 1 | Jordi Masip |
| LB | 22 | Nacho |
| CB | 4 | Kiko Olivas |
| CB | 5 | Fernando Calero |
| RB | 17 | Javi Moyano | | 56' |
| LW | 7 | Giannis Gianniotas | | 79' |
| CM | 8 | Borja Fernández |
| CM | 35 | Anuar |
| RW | 18 | Antoñito |
| LF | 23 | Óscar Plano | | 89' |
| RF | 9 | Jaime Mata | 84' |
| Substitutions: ||
| GK | 13 | Isaac Becerra |
| DF | 3 | Borja Herrera |
| MF | 10 | Javier Ontiveros | | 79' |
| MF | 11 | Pablo Hervías | | 56' |
| DF | 14 | Toni Martínez |
| MF | 19 | Toni Villa | 90+3' | 89' |
| MF | 44 | Javi Pérez |
| Manager: ||
| Sergio González ||

#### Second leg

| Valladolid | Numancia |
| GK | 1 | Jordi Masip | | 89' |
| LB | 22 | Nacho |
| CB | 4 | Kiko Olivas |
| CB | 5 | Fernando Calero |
| RB | 18 | Antoñito |
| CM | 8 | Borja Fernández |
| CM | 35 | Anuar |
| LW | 19 | Toni Villa | | 76' |
| AM | 23 | Óscar Plano |
| RW | 11 | Pablo Hervías | 74' | 81' |
| CF | 9 | Jaime Mata |
| Substitutions: ||
| GK | 13 | Isaac Becerra | | 89' |
| DF | 3 | Borja Herrera |
| FW | 7 | Giannis Gianniotas | | 76' |
| MF | 10 | Javier Ontiveros | | 81' |
| DF | 14 | Toni Martínez |
| DF | 17 | Javi Moyano |
| MF | 44 | Javi Pérez |
| Manager: ||
| Sergio González ||
| GK | 13 | Aitor Fernández |
| LB | 3 | Adrián Ripa |
| CB | 4 | Unai Elgezabal | 42' |
| CB | 5 | Dani Calvo |
| RB | 15 | Markel Etxeberria | 28' |
| CM | 6 | Iñigo Pérez |
| CM | 8 | Alberto Escassi |
| LW | 12 | Pere Milla | | 46' |
| AM | 24 | Pape Diamanka | | 46' |
| RW | 11 | Nacho |
| CF | 9 | Higinio | | 46' |
| Substitutions: ||
| GK | 30 | Gaizka Campos |
| DF | 2 | Saúl |
| FW | 7 | Manu del Moral | | 46' |
| MF | 10 | Julio Álvarez |
| FW | 19 | Guillermo | | 46' |
| MF | 21 | Marc Mateu | | 46' |
| MF | 22 | Pablo Larrea |
| Manager: ||
| Jagoba Arrasate ||
Promoted to La Liga :
* Valladolid (4 years later)