# 1990–91 Mexican Segunda División season

The 1990–91 Segunda División was the 42nd season of the Mexican Segunda División. The season started on 3 August 1990 and concluded on 17 July 1991. It was won by Atlante.

## Changes

* León was promoted to Primera División.
* Atlante was relegated from Primera División.
* Querétaro was promoted to Primera División after bought the Tampico Madero franchise. Pioneros de Cancún bought the Querétaro spot in Segunda División.
* Cachorros Zamora and Guerreros Acapulco were promoted from Segunda División B.
* Zitlaltepec was promoted from Tercera División.
* SUOO, Galicia and Ayense were relegated from Segunda División.
* Petroleros Salina Cruz license was bought by Real Celaya.

## Teams

| Club | City | Stadium |
| Atlante | Mexico City | Estadio Azulgrana |
| Atlético Potosino | San Luis Potosí | Estadio Plan de San Luis |
| Bachilleres | Guadalajara | Estadio Tecnológico UdeG |
| Cachorros Zamora | Zamora | Unidad Deportiva El Chamizal |
| Chetumal | Chetumal | Estadio José López Portillo |
| Ecatepec | Ecatepec de Morelos | Estadio Morelos |
| Guerreros Acapulco | Acapulco | Unidad Deportiva Acapulco |
| Inter de Tijuana | Tijuana | Estadio Cerro Colorado |
| Jalisco | Guadalajara | Estadio Jalisco Club San Rafael |
| La Piedad | La Piedad | Estadio Juan N. López |
| Leones Saltillo | Saltillo | Estadio Olímpico Francisco I. Madero |
| Pachuca | Pachuca | Estadio Revolución Mexicana |
| Pioneros Cancún | Cancún | Estadio Cancún 86 |
| Real Celaya | Celaya | Estadio Miguel Alemán Valdés |
| Tecomán | Tecomán | Estadio IAETAC |
| Tepic | Tepic | Estadio Nicolás Álvarez Ortega |
| UAQ | Querétaro City | Estadio Corregidora |
| Yucatán | Mérida | Estadio Carlos Iturralde |
| Zacatepec | Zacatepec | Estadio Agustín "Coruco" Díaz |
| Zitlaltepec | San Juan Zitlaltepec | Estadio Los Brujos |

## Group stage
### Group 1

| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts | Qualification or relegation |
| 1 | Atlante (Q) | 38 | 20 | 14 | 4 | 67 | 33 | +34 | 71 | Qualified to Playoffs |
| 2 | Pachuca (Q) | 38 | 20 | 10 | 8 | 63 | 38 | +25 | 63 | Qualified to Playoffs |
| 3 | La Piedad | 38 | 14 | 12 | 12 | 45 | 46 | −1 | 49 | |
| 4 | Tecomán | 38 | 12 | 12 | 14 | 55 | 61 | −6 | 47 | |
| 5 | Jalisco | 38 | 10 | 14 | 14 | 37 | 46 | −9 | 41 | |

### Group 2

| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts | Qualification or relegation |
| 1 | Pioneros Cancún (Q) | 38 | 14 | 15 | 9 | 51 | 39 | +12 | 55 | Qualified to Playoffs |
| 2 | Inter de Tijuana (Q) | 38 | 13 | 14 | 11 | 43 | 43 | 0 | 51 | Qualified to Playoffs |
| 3 | Chetumal | 38 | 15 | 11 | 12 | 35 | 42 | −7 | 50 | |
| 4 | Real Celaya | 38 | 13 | 10 | 15 | 47 | 52 | −5 | 44 | |
| 5 | Cachorros Zamora (R) | 38 | 8 | 4 | 26 | 43 | 76 | −33 | 26 | Relegated |

### Group 3

| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts | Qualification or relegation |
| 1 | Zacatepec (Q) | 38 | 23 | 7 | 8 | 76 | 28 | +48 | 73 | Qualified to Playoffs |
| 2 | Yucatán (Q) | 38 | 14 | 14 | 10 | 51 | 48 | +3 | 53 | Qualified to Playoffs |
| 3 | Tepic (Q) | 38 | 16 | 10 | 12 | 42 | 37 | +5 | 50 | Qualified to Playoffs |
| 4 | Guerreros Acapulco (R) | 38 | 11 | 6 | 21 | 38 | 50 | −12 | 37 | Relegated |
| 5 | Leones Saltillo (R) | 38 | 9 | 9 | 20 | 37 | 65 | −28 | 34 | Relegated |

### Group 4

| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts | Qualification or relegation |
| 1 | Atlético Potosino (Q) | 38 | 16 | 12 | 10 | 38 | 34 | +4 | 53 | Qualified to Playoffs |
| 2 | UAQ (Q) | 38 | 14 | 8 | 16 | 55 | 50 | +5 | 42 | Qualified to Playoffs |
| 3 | Ecatepec | 38 | 11 | 13 | 14 | 40 | 41 | −1 | 42 | |
| 4 | Bachilleres | 38 | 11 | 12 | 15 | 39 | 50 | −11 | 41 | |
| 5 | Zitlaltepec (R) | 38 | 9 | 7 | 22 | 34 | 57 | −23 | 29 | Relegated |

## Results

| Home \ Away | ATL | ATP | BAC | CAZ | CHE | ECA | GAC | INT | JAL | LPD | LSA | PAC | PIO | RCE | TEC | TEP | UAQ | YUC | ZAC | ZIT |
| Atlante | — | 3–0 | 0–0 | 4–1 | 2–0 | 3–1 | 1–0 | 2–1 | 1–3 | 4–1 | 5–0 | 1–4 | 0–4 | 2–0 | 4–1 | 2–0 | 4–1 | 3–0 | 1–0 | 2–0 |
| Atlético Potosino | 0–0 | — | 1–0 | 3–1 | 0–0 | 0–0 | 2–1 | 0–1 | 1–1 | 2–0 | 1–3 | 2–1 | 0–0 | 1–0 | 4–0 | 1–0 | 1–0 | 3–3 | 0–2 | 2–1 |
| Bachilleres | 0–0 | 0–1 | — | 3–1 | 3–0 | 0–0 | 1–1 | 3–3 | 0–1 | 2–0 | 1–0 | 4–1 | 1–0 | 2–1 | 1–1 | 0–2 | 2–1 | 0–0 | 0–3 | 0–0 |
| Cachorros Zamora | 1–3 | 0–1 | 3–0 | — | 5–1 | 2–0 | 2–0 | 2–0 | 2–0 | 1–2 | 1–1 | 0–1 | 0–0 | 1–2 | 1–1 | 1–0 | 1–0 | 2–3 | 1–1 | 0–1 |
| Chetumal | 0–0 | 1–1 | 2–0 | 2–1 | — | 2–0 | 2–1 | 0–0 | 2–2 | 1–1 | 1–1 | 1–0 | 0–0 | 3–1 | 1–0 | 0–0 | 2–0 | 1–0 | 1–0 | 3–1 |
| Ecatepec | 1–1 | 2–0 | 1–2 | 2–0 | 2–1 | — | 3–1 | 0–0 | 2–1 | 0–0 | 1–0 | 1–1 | 1–1 | 3–1 | 3–1 | 0–0 | 0–1 | 4–0 | 2–1 | 2–2 |
| Guerreros Acapulco | 0–0 | 1–0 | 0–1 | 3–0 | 2–3 | 2–2 | — | 1–2 | 1–1 | 1–2 | 1–0 | 0–1 | 1–2 | 2–0 | 1–2 | 1–1 | 2–0 | 2–0 | 0–3 | 2–0 |
| Inter Tijuana | 1–1 | 1–0 | 2–0 | 3–1 | 0–0 | 1–1 | 0–1 | — | 3–1 | 1–1 | 2–0 | 0–1 | 0–2 | 4–1 | 2–0 | 0–0 | 0–0 | 2–0 | 1–1 | 1–0 |
| Jalisco | 1–2 | 0–1 | 1–1 | 2–0 | 2–0 | 1–1 | 2–1 | 0–0 | — | 2–0 | 1–0 | 0–2 | 0–1 | 2–0 | 0–1 | 0–1 | 1–0 | 0–2 | 1–1 | 0–0 |
| La Piedad | 1–2 | 0–0 | 3–0 | 4–2 | 1–0 | 1–0 | 3–1 | 2–0 | 0–1 | — | 2–3 | 2–1 | 1–1 | 2–0 | 1–0 | 2–1 | 1–1 | 1–1 | 2–3 | 3–0 |
| Leones Saltillo | 1–1 | 1–2 | 5–1 | 2–0 | 0–2 | 0–1 | 0–1 | 1–1 | 1–0 | 0–0 | — | 1–1 | 1–1 | 1–1 | 1–2 | 2–1 | 2–0 | 2–3 | 1–4 | 3–0 |
| Pachuca | 2–2 | 1–1 | 1–0 | 3–2 | 1–0 | 1–0 | 5–2 | 7–1 | 2–0 | 3–2 | 1–0 | — | 1–1 | 2–0 | 0–0 | 1–1 | 2–1 | 1–1 | 1–2 | 2–0 |
| Pioneros Cancún | 1–1 | 0–0 | 0–4 | 2–0 | 3–0 | 2–0 | 1–0 | 1–1 | 2–0 | 4–1 | 1–2 | 3–1 | — | 2–0 | 0–0 | 1–2 | 2–2 | 0–0 | 2–1 | 3–3 |
| Real Celaya | 1–1 | 1–1 | 2–1 | 3–1 | 3–0 | 1–0 | 3–1 | 1–2 | 3–3 | 2–2 | 0–0 | 1–3 | 2–1 | — | 1–1 | 1–2 | 0–0 | 4–0 | 1–0 | 2–1 |
| Tecomán | 1–0 | 4–1 | 2–2 | 6–2 | 3–0 | 1–1 | 0–1 | 0–3 | 1–1 | 0–0 | 3–1 | 1–5 | 4–1 | 1–1 | — | 4–1 | 4–2 | 4–2 | 1–2 | 0–2 |
| Tepic | 2–2 | 0–2 | 1–1 | 2–0 | 1–0 | 1–0 | 0–1 | 2–1 | 2–2 | 1–0 | 1–0 | 0–0 | 4–3 | 0–1 | 3–0 | — | 2–1 | 1–0 | 0–2 | 3–0 |
| UAQ | 2–3 | 1–0 | 2–1 | 4–3 | 4–0 | 1–0 | 1–0 | 0–0 | 1–1 | 0–0 | 9–0 | 2–1 | 2–1 | 1–2 | 2–2 | 3–1 | — | 2–0 | 1–2 | 2–1 |
| Yucatán | 1–1 | 1–1 | 4–0 | 3–1 | 1–1 | 4–2 | 1–0 | 3–1 | 1–1 | 0–0 | 4–1 | 2–0 | 1–1 | 1–1 | 3–1 | 1–1 | 2–1 | — | 0–0 | 1–0 |
| Zacatepec | 0–0 | 2–0 | 3–1 | 6–0 | 0–1 | 2–0 | 1–1 | 4–2 | 5–0 | 5–0 | 6–0 | 0–0 | 2–0 | 1–3 | 3–0 | 1–0 | 3–1 | 2–1 | — | 2–1 |
| Zitlaltepec | 0–3 | 1–2 | 1–1 | 2–1 | 0–1 | 2–1 | 2–1 | 3–0 | 2–2 | 0–1 | 2–0 | 1–2 | 0–1 | 1–0 | 2–2 | 0–2 | 1–3 | 0–1 | 1–0 | — |

## Final stage
### Group 1

| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts | Promotion | ATL | UAQ | ZAC | TEP | INT |
| 1 | Atlante (Q) | 8 | 4 | 2 | 2 | 12 | 7 | +5 | 13 | Qualified to Final | | 4–0 | 1–0 | 3–1 | 2–0 |
| 2 | UAQ | 8 | 5 | 0 | 3 | 12 | 10 | +2 | 13 | | 3–0 | | 2–1 | 1–0 | 5–2 |
| 3 | Zacatepec | 8 | 3 | 3 | 2 | 13 | 8 | +5 | 12 | | 2–2 | 2–0 | | 3–0 | 3–1 |
| 4 | Tepic | 8 | 2 | 2 | 4 | 4 | 9 | −5 | 6 | | 0–0 | 1–0 | 1–1 | | 1–0 |
| 5 | Inter de Tijuana | 8 | 2 | 1 | 5 | 6 | 13 | −7 | 5 | | 1–0 | 0–1 | 1–1 | 1–0 | |

### Group 2

| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts | Promotion | PAC | ATP | YUC | PIO | AYE |
| 1 | Pachuca (Q) | 8 | 3 | 3 | 2 | 8 | 6 | +2 | 11 | Qualified to Final | | 2–1 | 1–1 | 2–0 | 2–0 |
| 2 | Atlético Potosino | 8 | 1 | 6 | 1 | 8 | 7 | +1 | 9 | | 2–0 | | 2–2 | 1–1 | 1–1 |
| 3 | Yucatán | 8 | 3 | 3 | 2 | 9 | 9 | 0 | 9 | | 2–1 | 0–0 | | 2–1 | 2–1 |
| 4 | Pioneros Cancún | 8 | 2 | 3 | 3 | 8 | 8 | 0 | 9 | | 0–0 | 0–0 | 2–0 | | 2–3 |
| 5 | Ayense | 8 | 2 | 3 | 3 | 7 | 10 | −3 | 8 | | 0–0 | 1–1 | 1–0 | 0–2 | |
* ↑ Ayense was invited to the Segunda División Promotion Playoff as Segunda División B champions.