2009 Star Mazda Championship
The 2009 Star Mazda Championship was the eleventh season of the Star Mazda Championship, an open wheel auto racing series that competes using spec chassis and engines. It consisted of a 13-race schedule beginning in March and ending in October. For the first time since 2006, the series featured races on oval tracks, more precisely the Milwaukee Mile and the Iowa Speedway. The remaining races except the one at Virginia were held jointly with the also Mazda-backed Atlantic Championship. In addition to the main championship that is typically tested by young, developing drivers, there were also additional class titles for senior drivers.
Adam Christodoulou won the championship ahead of Peter Dempsey, after the Irish driver's retirement at the final round at Mazda Raceway Laguna Seca gifted the title to the Briton. Chris Cumming and Michael Guasch won class titles for older drivers.
Teams and Drivers
| Team | Driver | Round | Notes | |
| AIM Autosport | 3 |  Peter Dempsey | 1–5 | |
| AIM Autosport | 71 |  David Ostella | All | |
| AIM Autosport | 72 |  Jorge Goncalvez | All | |
| AIM Autosport | 73 |  Giancarlo Vilarinho | 13 | Unregistered |
| American Speed Factory | 31 |  Carlos Conde | 2, 4–5, 8–9 | Masters Series |
| Andersen Racing | 2 |  Joel Miller | 7–13 | |
| Andersen Racing | 5 | Joe D'Agostino | 1 | |
| Andersen Racing | 17 | Mikaël Grenier | 2–6, 10 | |
| Andersen Racing | 21 | Denis Navarro | All | |
| Andersen Racing | 22 | Conor Daly | All | |
| Andersen Racing | 33 |  Richard Kent | 1, 3–13 | |
| DF Racing | 12 | Chuck Hulse | 3, 13 | Masters Series |
| Eliseo THL Motorsports | 77 |  Kevin Toledo | 1–10, 12 | |
| Goshen Motorsports | 80 |  Toshi Deki | 1–10 | Expert Series |
| Goshen Motorsports | 82 | Billy Goshen | 1–7 | |
| Goshen Motorsports | 83 | Ryan Booth | 1–2 | |
| Goshen Motorsports | 83 | Bruce Binnquist | 3 | Unregistered |
| JDC MotorSports | 2 | Joel Miller | 1–6 | |
| JDC MotorSports | 11 | Adam Christodoulou | All | |
| JDC MotorSports | 19 | Caio Lara | All | |
| JDC MotorSports | 20 | Gustavo Linares | 3, 6–7 | Unregistered |
| JDC MotorSports | 51 | Alex Ardoin | All | |
| JDC MotorSports | 55 | Gerry Kraut | 1–4, 8, 11–13 | Masters Series |
| JDC MotorSports | 85 | Chris Miller | 12–13 | Unregistered |
| JDC MotorSports | 91 | Michael Guasch | 1–5, 8–11, 13 | Masters Series |
| Juncos Racing | 3 | Peter Dempsey | 6–13 | |
| Juncos Racing | 13 | Michael Furfari | 1–10 | |
| Juncos Racing | 23 | Walt Bowlin | 1–5, 10–12 | Masters Series |
| Juncos Racing | 61 | Sean Burstyn | 1–5, 7–10 | |
| Juncos Racing | 80 | Toshi Deki | 11–13 | Expert Series |
| Kester Racing with Team 3G | 15 | Taylor Hacquard | 1–7 | |
| Kester Racing with Team 3G | 16 | Chris Cumming | 1–6 | Expert Series |
| Kester Racing with Team 3G | 24 | Jeffery Kester | 1–7 | |
| Kester Racing with Team 3G | 48 | Kristy Kester | 1–7 | |
| Mitchell Motorsports | 66 | Rusty Mitchell | All | |
| Mundill | 13 | Michael Furfari | 11–13 | |
| Mundill | 27 |  Anders Krohn | All | |
| Mundill | 64 | Patrick O'Neill | 2–3, 13 | Expert Series |
| Northwest Autosport | 29 | Phil Fogg | 1, 3 | Expert Series |
| Team Apex | 57 | Bob Kaminsky | 8 | Unregistered |
| Team GDT | 30 | Rick Rosin | 2–5, 8–9, 12 | Unregistered |
| Team GDT | 30 | Kyle Marcelli | 13 | Unregistered |
| Team GDT | 65 | J. W. Roberts | 1, 10, 13 | Expert Series |
| Team GDT | 65 | Ashley Freiberg | 8–9 | Unregistered |
| Worldspeed Motorsports | 16 | Chris Cumming | 8–9, 12–13 | Expert Series |
| Worldspeed Motorsports | 18 | Stan Kohls | 3 | Unregistered |
| Worldspeed Motorsports | 86 | Dave House | 3 | Unregistered |