• Joined his father’s Rahal Letterman Lanigan Racing organization for 2013, highlighted by a second-place finish at the Grand Prix of Long Beach in his first year, and another runner-up result at the Grand Prix of Detroit in 2014.
• Scored two wins and challenged for the IndyCar Series championship throughout the second half of 2015. Again led the Honda IndyCar effort in 2016, winning at Texas Motor Speedway; won twice in 2017, sweeping both rounds of the Detroit Grand Prix double header race weekend.
• Graduated to the Champ Car World Series with Newman Haas Racing in 2007, finishing fifth as a rookie. Became the youngest winner – and pole qualifier – in IndyCar Series history at the 2008 Honda Grand Prix of St. Petersburg, at the age of 19 years, 93 days.
• Starting in karting, rose rapidly through the training ground ranks with his first title in 2003. Became the youngest driver to win a Star Mazda race in 2005 and scored five Formula Atlantic wins the following season, finishing second in the 2006 championship to future Honda-powered IndyCar driver Simon Pagenaud.