| Competition: | Campeonato Nacional Petrobras |
| Season: | 2013 (Transición) |
| Winners: | Unión Española |
| Relegated: | San Marcos |
| Matches: | 153 |
| Total Goals: | 427 |
| Continentalcup1: | 2014 Copa Libertadores |
| Continentalcup1 Qualifiers: | Unión Española |
| Continentalcup2: | 2013 Copa Sudamericana |
| Continentalcup2 Qualifiers: | Universidad Católica Cobreloa |
| League Topscorer: | Javier Elizondo Sebastián Sáez (14 goals)[1] |
| Biggest Home Win: | Universidad de Chile 6-1 San Marcos |
| Biggest Away Win: | San Marcos 0-4 Ñublense |
| Highest Scoring: | Cobreloa 5-2 Colo-Colo Santiago Wanderers 3-4 Unión La Calera Huachipato 3-4 Universidad de Chile Rangers 5-2 Huachipato |
| Highest Attendance: | 41,527 Universidad de Chile 3-2 Colo-Colo (May 5th) |
| Attendance: | 790,243 |
| Average Attendance: | 5,164 |
| Prevseason: | 2012-C |
| Nextseason: | 2013–A |
The 2013 Primera División del Fútbol Profesional Chileno season (known as the 2013 Torneo Transición Petrobras for sponsorship reasons) was the 82nd season of top-flight football in Chile. Huachipato was the defending champion.
Starting in 2013, the ANFP's Council of Club Presidents approved a change from a season contained entirely within a calendar year to a season that spans two calendar years. To manage this transition, the 2013 season was held with only a single championship instead of the traditional Apertura and Clausura format. The Apertura and Clausura format returned for the 2013–14 season, but without the playoff rounds conducted in the past.[2]
Eighteen teams will be competing in the Primera División for the 2013 season, fifteen of whom are returning from the 2012 season. Universidad de Concepción, Unión San Felipe and La Serena were relegated last season after finishing 15th, 17th and 18th overall, respectively. They were replaced by San Marcos, Ñublense and Everton, the 2012 Primera B winner, runner-up and fourth place, respectively.
| Team | City | Stadium | Current manager | |
|---|---|---|---|---|
| Víctor Hugo Castañeda | ||||
| Luis Marcoleta | ||||
The Torneo de Transición began in January and ended in May.
The Classification Stage began in January and ended in May.
| Rank | Player | Club | Goals |
|---|---|---|---|
| 1 |  Javier Elizondo | Deportes Antofagasta | 14 |
| 1 | Sebastián Sáez | Audax Italiano | 14 |
| 3 | Sebastián Pol | Cobreloa | 11 |
| 4 | Carlos Muñoz | Colo-Colo | 9 |
| 5 | Isaac Díaz | Universidad de Chile | 8 |
| 6 | Patricio Rubio | Unión Española | 8 |
| 7 | Ismael Sosa | Universidad Católica | 8 |
| width=28 | width=185 | Team | width=50 | width=50 | width=50 | width=50 | width=50 | width=50 | width=50 | Relegation | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Universidad de Chile | 64 | 74 | 73 | 30 | 241 | 119 | |||||||||||
| 2 | Universidad Católica | 74 | 66 | 53 | 35 | 231 | 119 | |||||||||||
| 3 | Colo-Colo | 71 | 54 | 59 | 21 | 205 | 119 | |||||||||||
| 4 | Unión Española | 52 | 55 | 51 | 35 | 196 | 119 | |||||||||||
| 5 | Everton | — | — | — | 27 | 27 | 17 | |||||||||||
| 6 | Audax Italiano | 65 | 50 | 43 | 19 | 177 | 119 | |||||||||||
| 7 | O'Higgins | 41 | 44 | 55 | 31 | 171 | 119 | |||||||||||
| 8 | Rangers | — | — | 48 | 24 | 72 | 51 | |||||||||||
| 9 | Iquique | — | 41 | 65 | 13 | 119 | 85 | |||||||||||
| 10 | Cobreloa | 39 | 49 | 43 | 34 | 165 | 119 | |||||||||||
| 11 | Unión La Calera | — | 49 | 39 | 26 | 114 | 85 | |||||||||||
| 12 | Palestino | 42 | 49 | 48 | 20 | 159 | 119 | |||||||||||
| 13 | Huachipato | 48 | 39 | 48 | 19 | 154 | 119 | |||||||||||
| 14 | Santiago Wanderers | 45 | 39 | 39 | 23 | 146 | 119 | |||||||||||
| 15 | Ñublense | 40 | — | — | 20 | 60 | 51 | |||||||||||
| 16 | Antofagasta | — | — | 37 | 19 | 56 | 51 | |||||||||||
| 17 | Cobresal | 42 | 39 | 35 | 11 | 127 | 119 | Relegation Playoff Matches | ||||||||||
| 18 | San Marcos | — | — | — | 12 | 12 | 17 | 2013–14 Primera División B | ||||||||||