The two-time IndyCar champion from Hendersonville, Tennessee, benefitted through an executed pit strategy before prevailing over late challenges from Romain Grosjean and Alex Palou to notch his first elusive victory at the Streets of Long Beach.
The second-generation competitor from Valencia, Santa Clarita, California is set to achieve a milestone start in his fourth full-time season in IndyCar competition.
Colton Herta, starting deep in the field in 14th after being the fastest in both practice sessions took over the lead on Lap 34 after Helio Castroneves made his scheduled stop and held off Newgarden to win at home for the first time in his career.