# 1990–91 Segunda Divisão B

The 1990–91 Segunda Divisão season was the 57th season of the competition and the 41st season of recognised third-tier football in Portugal.

## Overview

The league was contested by 60 teams in 3 divisions with AD Ovarense, Rio Ave FC and SC Olhanense winning the respective divisional competitions and gaining promotion to the Liga de Honra. The overall championship was won by AD Ovarense.

## League standings
### Segunda Divisão - Zona Norte

| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts | Promotion or relegation |
| 1 | Rio Ave FC | 38 | 23 | 10 | 5 | 79 | 21 | +58 | 56 | Promotion to Championship play-off |
| 2 | AD Fafe | 38 | 23 | 8 | 7 | 66 | 29 | +37 | 54 | |
| 3 | FC Marco | 38 | 18 | 10 | 10 | 48 | 46 | +2 | 46 | |
| 4 | Infesta FC | 38 | 18 | 7 | 13 | 68 | 54 | +14 | 43 | |
| 5 | Moreirense FC | 38 | 14 | 14 | 10 | 66 | 49 | +17 | 42 | |
| 6 | SC Vila Real | 38 | 17 | 8 | 13 | 52 | 39 | +13 | 42 | |
| 7 | GD Joane | 38 | 16 | 10 | 12 | 49 | 37 | +12 | 42 | |
| 8 | União Lamas | 38 | 16 | 10 | 12 | 61 | 57 | +4 | 42 | |
| 9 | FC Felgueiras | 38 | 18 | 5 | 15 | 54 | 41 | +13 | 41 | |
| 10 | FC Vizela | 38 | 17 | 7 | 14 | 59 | 49 | +10 | 41 | |
| 11 | AD Lousada | 38 | 17 | 7 | 14 | 54 | 49 | +5 | 41 | |
| 12 | União Paredes | 38 | 15 | 10 | 13 | 60 | 56 | +4 | 40 | |
| 13 | AD Esposende | 38 | 14 | 11 | 13 | 46 | 49 | −3 | 39 | |
| 14 | Amarante FC | 38 | 15 | 8 | 15 | 51 | 50 | +1 | 38 | Relegation to Terceira Divisão |
| 15 | CD Trofense | 38 | 13 | 12 | 13 | 45 | 46 | −1 | 38 | Relegation to Terceira Divisão |
| 16 | GD Bragança | 38 | 11 | 7 | 20 | 40 | 61 | −21 | 29 | Relegation to Terceira Divisão |
| 17 | Leça FC | 38 | 8 | 12 | 18 | 45 | 55 | −10 | 28 | Relegation to Terceira Divisão |
| 18 | SC Mirandela | 38 | 5 | 11 | 22 | 21 | 68 | −47 | 21 | Relegation to Terceira Divisão |
| 19 | CRP Delães | 38 | 7 | 6 | 25 | 35 | 90 | −55 | 20 | Relegation to Terceira Divisão |
| 20 | AD Valpaços | 38 | 6 | 5 | 27 | 40 | 93 | −53 | 17 | Relegation to Terceira Divisão |

### Segunda Divisão - Zona Centro

| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts | Promotion or relegation |
| 1 | AD Ovarense | 38 | 26 | 7 | 5 | 80 | 24 | +56 | 59 | Promotion to Championship play-off |
| 2 | CD Lousanense | 38 | 20 | 10 | 8 | 50 | 23 | +27 | 50 | |
| 3 | Caldas SC | 38 | 21 | 6 | 11 | 51 | 30 | +21 | 48 | |
| 4 | AD Sanjoanense | 38 | 18 | 11 | 9 | 57 | 30 | +27 | 47 | |
| 5 | CA Mirandense | 38 | 15 | 16 | 7 | 36 | 21 | +15 | 46 | |
| 6 | UD Oliveirense | 38 | 19 | 7 | 12 | 52 | 32 | +20 | 45 | |
| 7 | União Mirense | 38 | 15 | 14 | 9 | 60 | 47 | +13 | 44 | |
| 8 | Oliveira do Hospital | 38 | 14 | 14 | 10 | 47 | 44 | +3 | 42 | |
| 9 | SC Covilhã | 38 | 14 | 11 | 13 | 42 | 38 | +4 | 39 | |
| 10 | União Santarém | 38 | 15 | 8 | 15 | 44 | 41 | +3 | 38 | |
| 11 | Naval 1º Maio | 38 | 13 | 12 | 13 | 40 | 47 | −7 | 38 | |
| 12 | UFCI Tomar | 38 | 13 | 11 | 14 | 38 | 37 | +1 | 37 | |
| 13 | CD Estarreja | 38 | 12 | 12 | 14 | 49 | 51 | −2 | 36 | Relegation to Terceira Divisão |
| 14 | GD Santacombadense | 38 | 11 | 11 | 16 | 32 | 39 | −7 | 33 | Relegation to Terceira Divisão |
| 15 | Os Marialvas | 38 | 10 | 12 | 16 | 39 | 49 | −10 | 32 | Relegation to Terceira Divisão |
| 16 | União Coimbra | 38 | 11 | 6 | 21 | 36 | 61 | −25 | 28 | Relegation to Terceira Divisão |
| 17 | GD Mangualde | 38 | 10 | 7 | 21 | 25 | 50 | −25 | 27 | Relegation to Terceira Divisão |
| 18 | Anadia FC | 38 | 7 | 13 | 18 | 38 | 58 | −20 | 27 | Relegation to Terceira Divisão |
| 19 | GC Alcobaça | 38 | 7 | 11 | 20 | 25 | 63 | −38 | 25 | Relegation to Terceira Divisão |
| 20 | AD Guarda | 38 | 7 | 5 | 26 | 35 | 91 | −56 | 19 | Relegation to Terceira Divisão |

### Segunda Divisão - Zona Sul

| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts | Promotion or relegation |
| 1 | SC Olhanense | 38 | 18 | 13 | 7 | 58 | 34 | +24 | 49 | Promotion to Championship play-off |
| 2 | SC Campomaiorense | 38 | 21 | 6 | 11 | 53 | 37 | +16 | 48 | |
| 3 | SG Sacavenense | 38 | 16 | 14 | 8 | 54 | 34 | +20 | 46 | |
| 4 | Lusitano Évora | 38 | 18 | 10 | 10 | 47 | 36 | +11 | 46 | |
| 5 | Atlético CP | 38 | 17 | 11 | 10 | 41 | 34 | +7 | 45 | |
| 6 | Amora FC | 38 | 12 | 19 | 7 | 52 | 33 | +19 | 43 | |
| 7 | CDR Quarteirense | 38 | 16 | 11 | 11 | 42 | 37 | +5 | 43 | |
| 8 | CD Montijo | 38 | 16 | 10 | 12 | 47 | 32 | +15 | 42 | |
| 9 | FC Alverca | 38 | 16 | 7 | 15 | 54 | 38 | +16 | 39 | |
| 10 | Silves FC | 38 | 12 | 15 | 11 | 39 | 32 | +7 | 39 | |
| 11 | Esperança Lagos | 38 | 13 | 12 | 13 | 38 | 38 | 0 | 38 | |
| 12 | União Santiago | 38 | 13 | 12 | 13 | 46 | 46 | 0 | 38 | |
| 13 | Juventude Évora | 38 | 11 | 14 | 13 | 47 | 46 | +1 | 36 | |
| 14 | CD Santa Clara | 38 | 12 | 9 | 17 | 40 | 56 | −16 | 33 | Relegation to Terceira Divisão |
| 15 | Oriental Lisboa | 38 | 12 | 9 | 17 | 40 | 51 | −11 | 33 | Relegation to Terceira Divisão |
| 16 | SU Sintrense | 38 | 11 | 9 | 18 | 45 | 64 | −19 | 31 | Relegation to Terceira Divisão |
| 17 | Seixal FC | 38 | 10 | 11 | 17 | 34 | 46 | −12 | 31 | Relegation to Terceira Divisão |
| 18 | União Almeirim | 38 | 9 | 11 | 18 | 39 | 71 | −32 | 29 | Relegation to Terceira Divisão |
| 19 | CD Olivais e Moscavide | 38 | 8 | 10 | 20 | 37 | 65 | −28 | 26 | Relegation to Terceira Divisão |
| 20 | GS Loures | 38 | 7 | 11 | 20 | 34 | 57 | −23 | 25 | Relegation to Terceira Divisão |

## Championship play-off

| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts | Promotion |
| 1 | Ovarense (C) | 4 | 3 | 0 | 1 | 10 | 4 | +6 | 6 | Promotion to Segunda Divisão de Honra |
| 2 | Rio Ave | 4 | 2 | 1 | 1 | 9 | 7 | +2 | 5 | Promotion to Segunda Divisão de Honra |
| 3 | Olhanense | 4 | 0 | 1 | 3 | 6 | 14 | −8 | 1 | Promotion to Segunda Divisão de Honra |