Iowa
| 2023 | Josef Newgarden |
| 2023 | Josef Newgarden |
| 2022 | Pato O’Ward |
| 2022 | Josef Newgarden |
| 2020 | Josef Newgarden |
| 2020 | Simon Pagenaud |
| 2019 | Josef Newgarden |
| 2018 | James Hinchcliffe |
| 2017 | Helio Castroneves |
| 2016 | Josef Newgarden |
| 2015 | Ryan Hunter-Reay |
| 2014 | Ryan Hunter-Reay |
| 2013 | James Hinchcliffe |
| 2012 | Ryan Hunter-Reay |
| 2011 | Marco Andretti |
| 2010 | Tony Kanaan |
| 2009 | Dario Franchitti |
| 2008 | Dan Wheldon |
| 2007 | Dario Franchitti |
Team
| 2023 | Team Penske |
| 2023 | Team Penske |
| 2022 | Arrow McLaren SP |
| 2022 | Team Penske |
| 2020 | Team Penske |
| 2020 | Team Penske |
| 2019 | Team Penske |
| 2018 | Schmidt Peterson Motorsports |
| 2017 | Team Penske |
| 2016 | Ed Carpenter Racing |
| 2015 | Andretti Autosport |
| 2014 | Andretti Autosport |
| 2013 | Andretti Autosport |
| 2012 | Andretti Autosport |
| 2011 | Andretti Autosport |
| 2010 | Andretti Autosport |
| 2009 | Chip Ganassi Racing |
| 2008 | Chip Ganassi Racing |
| 2007 | Andretti Green Racing |
Qualifying
| 2023 | 181.578 | Will Power |
| 2023 | 181.426 | Will Power |
| 2022 | 178.013 | Will Power |
| 2022 | 178.199 | Will Power |
| 2020 | 175.333 | Josef Newgarden |
| 2020 | 175.188 | Conor Daly |
| 2019 | 180.073 | Simon Pagenaud |
| 2018 | 182.391 | Will Power |
| 2017 | 185.210 | Will Power |
| 2016 | 185.855 | Simon Pagenaud |
| 2015 | 183.480 | Helio Castroneves |
| 2014 | 186.256 | Scott Dixon |
| 2013 | 185.653 | Helio Castroneves |
| 2012 | N/A | Dario Franchitti |
| 2011 | 180.375 | Takuma Sato |
| 2010 | 181.337 | Will Power |
| 2009 | N/A | Helio Castroneves |
| 2008 | N/A | Scott Dixon |
| 2007 | 182.360 | Scott Dixon |
