|Number of teams||14|
|Level on pyramid||2|
|Promotion to||Liga MX|
|Relegation to||Liga Premier|
|Domestic cup(s)||Copa MX |
|Current champions||Atlético San Luis (2nd title) |
|Most championships||León |
Sinaloa (4 titles)
|TV partners||Canal 44|
|2019–20 Ascenso MX season|
Ascenso MX is the second tier of professional football in Mexico of the Mexican football league system. The champion of the competition is promoted to Liga MX (top-flight tier). The bottom team is relegated to Liga Premier (the third tier). It is currently sponsored by BBVA through its Mexican subsidiary BBVA Bancomer, and thus officially known as Ascenso BBVA MX.
Formerly known as Primera División A (First Division A) the league rebranded in 2009 its name and competition format to Liga de Ascenso. It was rebranded in 2012 as Ascenso MX. The major changes: clubs do not need a FMF certification to be promoted and that the competition no longer used group stages.
In 1994, in order to create a premier league, the Mexican Football Federation decided to upgrade the Second Division to "Primera División A" (First Division A) to bring closer together the level of play in the two tiers, Primera and Primera A. The project was under the direction of José Antonio García Rodríguez, the then president of the then top-tier Primera Division. He envisioned the new division to be joined by the best teams of the Segunda and include teams from the United States (Los Angeles Salsa and San Jose Black Hawks who expressed a desire to join). FIFA declined the integration but did establish a new league with the best Segunda División sides. The inaugural 1994-1995 season began with 15 teams: Acapulco, Atlético Celaya, Atlético San Francisco, Atlético Yucatán, Caimanes de Tabasco, Coras de Tepic, Gallos de Aguascalientes, Halcones de Querétaro, Inter Tijuana, Irapuato, Reboceros de La Piedad, Marte, Pachuca, San Luis, and Zacatepec. Cobras de Ciudad Juárez declined to participate due to financial problems.
In 2006, the number of teams increased from 20 to 24, and geographically separated into two groups for preliminary competition (A and B).
In 2009, the major changes were: the name change from Primera División to Liga de Ascenso. The league was reduced to 17 teams and the groups were eliminated. Apertura 2010 had 18 teams participating. In 2012 the league was rebranded as Ascenso MX. In 2013 Alebrijes de Oaxaca was the 16th team of Ascenso MX. Alebrijes was partly formed by consolidating Segunda División side Tecamachalco which had won promotion to Ascenso MX in 2012, but did not fulfill infrastructural requirements set by the Mexican Football Federation. In August 2013, Club Zacatepec was promoted to Ascenso MX in place of relegated Pumas Morelos. 
In Ascenso MX editions 2011–2016, no team was relegated to Segunda División de México Liga Premier de Ascenso. On June 6, 2016, returned to relegation to the Segunda División de México Liga Premier de Ascenso for the 2016–17 season. Loros UdeC and Murciélagos F.C. were relegated in the next two seasons. In 2018–19 season, Tampico Madero F.C. finished in the last place of the relegation table, but the team remained in Ascenso MX after paying a bail.
|Atlante||Cancún, Quintana Roo||Andrés Quintana Roo||17,289|
|Celaya||Celaya, Guanajuato||Miguel Alemán Valdés||23,182|
|Chiapas||Tuxtla Gutiérrez, Chiapas||Víctor Manuel Reyna||29,001|
|Oaxaca||Oaxaca City, Oaxaca||Tecnológico de Oaxaca||14,598|
|Sonora||Hermosillo, Sonora||Héroe de Nacozari||18,747|
|Tampico Madero||Tampico / Ciudad Madero, Tamaulipas||Tamaulipas||19,667|
|UAEM||Toluca, State of Mexico||Universitario Alberto "Chivo" Córdoba||32,603|
|UAT||Ciudad Victoria, Tamaulipas||Marte R. Gómez||10,520|
|UdeC||Colima City, Colima||Olímpico Universitario de Colima||11,812|
|Venados||Mérida, Yucatán||Carlos Iturralde||15,087|
|Zacatecas||Zacatecas City, Zacatecas||Carlos Vega Villalba||20,068|
|Zacatepec||Zacatepec, Morelos||Agustín "Coruco" Díaz||24,313|
|Team||Mexico Broadcaster||United States Broadcaster||Day||Time*|
|Celaya||Claro / TV CUATRO||Nuestra Visión||Sunday||12:00 PM|
|Oaxaca||Claro||Nuestra Visión||Saturday||5:00 PM|
|Sinaloa||Claro / ESPN||ESPN Deportes[Note 1]||Saturday||9:00 PM|
|Sonora||Telemax / TVC Deportes||—||Saturday||9:00 PM|
|Tampico Madero||Fox Sports||Fox Deportes||Friday||7:00 PM|
|UAEM||TVC Deportes||GOL TV||Friday||5:00 PM|
|UdeC||TVC Deportes||—||Saturday||5:00 PM|
|UdeG||Canal 44 / TVC Deportes||—||Sunday||12:00 PM|
|Venados||Claro / ESPN / TeleSur||—||Friday||9:00 PM|
|Zacatecas||Claro / Fox Sports||—||Friday||7:00 PM|
|Zacatepec||Televisa||GOL TV||Saturday||5:00 PM|
The current managers in Ascenso MX are:
|Nat.||Name||Club||Appointed||Time as manager|
|Víctor Hugo Mora||UdeC||28 February 2011||8 years, 51 days|
|Ricardo Valiño||Zacatepec||3 October 2018||319 days|
|David Rangel||UAEM||23 October 2018||299 days|
|Sergio Orduña||Venados||3 December 2018||258 days|
|Isaac Morales||Sonora||16 December 2018||245 days|
|José Islas||Celaya||27 December 2018||234 days|
|Carlos Reinoso||UAT||13 February 2019||186 days|
|Mario García||Tampico Madero||6 March 2019||165 days|
|Oscar Torres||Zacatecas||15 May 2019||95 days|
|Alex Diego||Atlante||15 May 2019||95 days|
|Ricardo Rayas||UdeG||27 May 2019||83 days|
|Gabriel Pereyra||Chiapas||30 May 2019||80 days|
|Alejandro Pérez||Oaxaca||10 June 2019||69 days|
|José Guadalupe Cruz||Sinaloa||17 June 2019||62 days|
Promotion and relegation
- 1976–77: Tampico Madero bought San Luis's spot in first division
- 1977–78: Deportivo Neza is bought Laguna and took its spot.
- 1981–82: Tampico Madero bought Atletas Campesinos and took over its spot
- 1983–84: Ángeles de Puebla bought Oaxtepec and took over its spot
- 1988–89: Tiburones Rojos de Veracruz bought Potros Neza and took over its spot
- 1992–93: U.T. Neza changes its name to Toros Neza
- 1998–99: Puebla bought U.D Curtidores and took over its spot
- 1999–00: Irapuato gained automatic promotion as they won both tournaments.
- 2001–02: Veracruz gained automatic promotion due to expansion in first division
- 2009-10: Necaxa gained automatic promotion as they won both tournaments.
- 2012–13: Veracruz bought La Piedad's spot in first division
- 2013–14: Zacatepec bought Cruz Azul Hidalgo's spot in Ascenso MX.
- 2017–18: Tapachula were not certified to be promoted to Liga MX.
- includes Claro Sports
- includes ESPN 2
- includes Fox Sports 2
- includes SKY México, TDN and Univisión TDN
- includes TVC Deportes 2
- "Nace la Liga de Ascenso". www.femexfut.org.mx. 2009-06-22. Archived from the original on 2011-07-16. Retrieved 2009-06-22.
- "Nacen los Guerreros de Oaxaca :: Deportes". televisadeportes.esmas.com.
- Die 18 Mannschaften in der Liga de Ascenso 2010/11 Archived 2012-03-24 at the Wayback Machine (Spanish; retrieved on May 27, 2010)