2012–13 Ascenso MX season
The 2012–13 Ascenso MX season took place from 20 July 2012 to 11 May 2013 and was divided into two tournaments named Apertura 2012 and Clausura 2013. The Ascenso MX is the second-tier football league of Mexico.
The Apertura 2012 winner La Piedad defeated the Clausura 2013 winner Neza in a promotional final and won the ascension to the 2013–14 Liga MX season.
Changes from the previous season
- León were promoted to Liga MX.
- Tecos were relegated from Liga MX.
- Titanes de Tulancingo, winners of Segunda División de México did not obtain a license to compete. The runners-up Tecamachalco also did not obtain a license. Since no teams were promoted from the Segunda, the total number of teams competing was reduced to fifteen.
- U. de G. avoided relegation due to the disaffiliation to Indios.
Stadia and locations
| Club | City | Statium | Capacity |
| Altamira | Altamira | Estadio Altamira | 12,500 |
| Celaya | Celaya | Estadio Miguel Alemán | 25,000 |
| Correcaminos | Ciudad Victoria | Estadio Marte R. Gómez | 18,000 |
| Cruz Azul Hidalgo | Jasso | Estadio 10 de Diciembre | 10,700 |
| Dorados de Sinaloa | Culiacán | Estadio Banorte | 21,325 |
| Tecos | Zapopan, Jalisco | Estadio Tres de Marzo | 30,000 |
| Irapuato | Irapuato | Estadio Sergio León Chávez | 25,000 |
| La Piedad | La Piedad | Estadio Juan N. López | 15,700 |
| Lobos BUAP | Puebla | Estadio Olímpico de C.U. | 20,700 |
| Mérida | Mérida | Estadio Carlos Iturralde | 24,000 |
| Necaxa | Aguascalientes | Estadio Victoria | 25,000 |
| Neza | Ciudad Nezahualcóyotl | Estadio Neza 86 | 25,000 |
| Pumas Morelos | Cuernavaca | Estadio Centenario | 7,000 |
| U. de G. | Guadalajara | Estadio Jalisco | 56,713 |
| Veracruz | Veracruz | Estadio Luis de la Fuente | 30,000 |
Torneo Apertura
The 2012 Apertura was the first championship of the season. It began on 20 July 2012 and ended on 1 December 2012.Standings
Results
- Updated to 4 November 2012.
Liguilla (Playoffs)
The teams were seeded one to seven in quarterfinals, and were re-seeded one to four in semifinals, depending on their position in the general table. The higher seeded teams played on their home field during the second leg.
- If the two teams were tied after both legs, the away goals rule applied. If both teams were still tied, higher seeded team would have advanced.
- Teams were re-seeded every round.
- The winner qualified to the playoff match vs the Clausura 2013 winner. However, if the winner had been the same in both tournaments, they would have been promoted to the 2012–13 Mexican Primera División without playing the [|Promotional Final]
Top goalscorers - Apertura 2012 Regular Season
Players sorted first by goals scored, then by goal frequency.
In blue, the goal scoring champion of Apertura 2012
| Rank | Player | Club | Goals | Goal freq. |
| 1 |  Víctor Lojero | Necaxa | 11 | 91.36 |
| 2 | Rodrigo Prieto | Neza | 11 | 109.73 |
| 3 |  Danny Santoya | Necaxa | 9 | 104.00 |
| 4 |  Juan Manuel Cavallo | La Piedad | 9 | 126.56 |
| 5 | Roberto Nurse | Correcaminos | 8 | 141.25 |
| 6 | Eduardo Lillingston | Tecos | 8 | 146.88 |
| 7 | Julio Pardini | Celaya | 7 | 119.14 |
| 8 | Cuauhtémoc Blanco | Dorados de Sinaloa | 6 | 195.00 |
| 9 |  Aparecido Lima | Lobos BUAP | 5 | 184.80 |
| 10 | Ariel González | Irapuato | 5 | 208.60 |
| 11 | Omar Tejeda | Lobos BUAP | 5 | 209.60 |
| 12 |  Sonny Guadarrama | Mérida | 4 | 148.25 |
| 13 | Diego Campos | U. de G. | 4 | 200.00 |
| 14 | Ismael Valadéz | Cruz Azul Hidalgo | 4 | 225.75 |
| 15 | Juan de Dios Hernández | Dorados de Sinaloa | 4 | 241.00 |
Source:
Torneo Clausura
The 2013 Clausura was the second championship of the season. It began on 4 January 2013 and ended on 11 May 2013.Standings
Results
- Updated to 22 January 2013.
Liguilla (Playoffs)
The teams were seeded one to eight in the quarterfinals, and were re-seeded one to four in the semifinals, depending on their position in the general table. The higher seeded teams played on their home field during the second leg.
- If the two teams were tied after both legs, the higher seeded team advanced.
- Teams were re-seeded every round.
- The winner qualified to the playoff match vs the Apertura 2012 winner. However, if the winner had been the same in both tournaments, they would have been promoted to the 2013–14 Mexican Primera División season without playing the Promotional Final.
Quarterfinals
First leg
Second leg
Semifinals
First leg
Second leg
Final
First leg
Second leg
Promotional final
First Leg
----Second leg
Top goalscorers - Clausura 2013 Regular Season
Last Updated on 21 January 2012.Players sorted first by goals scored, then by goal frequency.
| Rank | Player | Club | Goals | Goal freq. |
| 1 | Víctor Lojero | Necaxa | 12 | 101.00 |
| 2 | Pablo Torres | Veracruz | 11 | 111.64 |
| 3 | Eial Strahman | U. de G. | 9 | 102.78 |
| 4 | Danny Santoya | Necaxa | 7 | 139.14 |
| 5 | Diego Mejía | Neza | 6 | 185.50 |
| 6 |  Diego Martiñones | Tecos | 5 | 184.80 |
| 7 | Oscar Fernández | Altamira | 5 | 190.40 |
| 8 | Sonny Guadarrama | Mérida | 5 | 234.60 |
| 9 | Jorge Ocampo | Celaya | 5 | 244.00 |
| 10 | Hebert Alférez | Lobos BUAP | 4 | 119.25 |
Source:
Relegation table
The relegated team had the lowest ratio by adding the points scored in the following tournaments: Apertura 2010, Bicentenario 2011, Apertura 2011 and Clausura 2012 and Apertura 2012 and Clausura 2013.| Rank | Team | Points | Games | % |
| 9 | Dorados de Sinaloa | 105 | 84 | 1.2500 |
| 10 | Mérida | 103 | 84 | 1.2262 |
| 11 | Celaya | 62 | 52 | 1.1923 |
| 12 | Altamira | 100 | 84 | 1.1905 |
| 13 | U. de G. | 101 | 85 | 1.1882 |
| 14 | Cruz Azul Hidalgo | 93 | 84 | 1.1071 |
| 15 | Pumas Morelos | 92 | 85 | 1.0824 |
Source: