2009 NASCAR Mini Stock Series

Ernesto Guerrero ended up as series champion, edging out Erik Mondragón by just two points.

This year the series entered a transition stage, in which the field of front-wheel drive touring cars used in the T4 Series in previous years was changed for rear-wheel drive stock cars, as a way to help the drivers develop their abilities and prepare for the next steps in their careers.

Ironically, in the first two races of the season, the newly built rear-wheel drive cars were affected by reliability issues that have given some advantage to the drivers running with the old car.

The race calendar for this season and results is as follows:[2] (key) Bold - Pole position awarded by time.

Italics - Pole position set by final practice results or rainout.