2009–10 Torneo Argentino A
The 2009–10 Argentine Torneo Argentino A was the fifteenth season of third division professional football in Argentina. A total of 25 teams competed; the champion was promoted to Primera B Nacional.1 Play their home games at Estadio José María Minella.Zone B
Zone C
Torneo Apertura 2009
Zone A
Zone B
Zone C
Second Stage
Group A
Group B
Torneo Clausura 2010
First Stage
Zone A
Zone B
Zone C
Second Stage
Pentagonal A
Pentagonal B
Final Stage
Semifinals
Final
Promotion/Relegation Playoff B Nacional-Torneo Argentino A
!colspan="5"|Relegation/promotion playoff 1
!colspan="5"|Relegation/promotion playoff 2
- Alumni remained in the Torneo Argentino A by winning the playoff.
- Villa Mitre remained in the Torneo Argentino A by drawing the playoff.