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| 1st(1st leg) | Real Oviedo | - | Racing Santander | 3:0 | ||
| 2nd (2nd leg) | Racing Santander | - | Real Oviedo | 3:4 (2:0, 3:0, 3:0) pso | ||
| 1st(1st leg): 01/05/1986 | 2nd (2nd leg): 08/05/1986 | Winner: Real Oviedo | ||||
| 1st(1st leg) | RC Celta | - | Espanyol Barcelona | 3:2 | ||
| 2nd (2nd leg) | Espanyol Barcelona | - | RC Celta | 2:0 | ||
| 1st(1st leg): 01/05/1986 | 2nd (2nd leg): 08/05/1986 | Winner: Espanyol Barcelona | ||||
| 1st(1st leg) | UB Conquense | - | Valencia CF | 2:2 | ||
| 2nd (2nd leg) | Valencia CF | - | UB Conquense | 3:1 | ||
| 1st(1st leg): 01/05/1986 | 2nd (2nd leg): 08/05/1986 | Winner: Valencia CF | ||||
| 1st(1st leg) | Cádiz CF | - | Sporting Gijón | 0:1 | ||
| 2nd (2nd leg) | Sporting Gijón | - | Cádiz CF | 0:0 | ||
| 1st(1st leg): 01/05/1986 | 2nd (2nd leg): 08/05/1986 | Winner: Sporting Gijón | ||||
| 1st(1st leg) | Sestao SC | - | UD Las Palmas | 2:0 | ||
| 2nd (2nd leg) | UD Las Palmas | - | Sestao SC | 2:1 | ||
| 1st(1st leg): 01/05/1986 | 2nd (2nd leg): 08/05/1986 | Winner: Sestao SC | ||||
| 1st(1st leg) | Real Zaragoza | - | Hércules CF | 2:1 | ||
| 2nd (2nd leg) | Hércules CF | - | Real Zaragoza | 0:2 | ||
| 1st(1st leg): 01/05/1986 | 2nd (2nd leg): 08/05/1986 | Winner: Real Zaragoza | ||||
| 1st(1st leg) | Real Valladolid | - | Albacete | 5:1 | ||
| 2nd (2nd leg) | Albacete | - | Real Valladolid | 4:3 | ||
| 1st(1st leg): 01/05/1986 | 2nd (2nd leg): 08/05/1986 | Winner: Real Valladolid | ||||
| 1st(1st leg) | CA Osasuna | - | Real Betis | 2:2 | ||
| 2nd (2nd leg) | Real Betis | - | CA Osasuna | 3:2 | ||
| 1st(1st leg): 01/05/1986 | 2nd (2nd leg): 04/05/1986 | Winner: Real Betis | ||||
| 1st(1st leg) | Real Sociedad | - | Athletic Bilbao | 2:1 | ||
| 2nd (2nd leg) | Athletic Bilbao | - | Real Sociedad | 2:2 | ||
| 1st(1st leg): 01/05/1986 | 2nd (2nd leg): 08/05/1986 | Winner: Real Sociedad | ||||
