Herta lapped the two.366-mile 17-turn Alabama course in 1m06.5149s to shade defending collection champion and 2021 Barber winner Alex Palou (Chip Ganassi Racing) by zero.05s.
Alexander Rossi was exactly zero.1s behind team-mate Herta however shaded fellow Andretti Autosport driver Romain Grosjean to safe third spot.
In a session that urged Honda have retained considerably of a bonus over Chevrolet on twisty highway programs, St. Petersburg winner Scott McLaughlin (Staff Penske) made a late enchancment to take fifth place because the quickest Chevrolet-powered runner.
That put him simply forward of fellow Kiwi Scott Dixon within the second quickest Ganassi entry, whereas the second quickest of Chevrolet runner Pato O’Ward (Arrow McLaren SP) was zero.47s off Herta’s tempo.
Callum Ilott within the sole Juncos Hollinger Racing-Chevrolet set the eighth-quickest time and was the quickest rookie, as Marcus Ericsson (Ganassi) and Rinus VeeKay (Ed Carpenter Racing) accomplished the highest 10.
Jack Harvey was the quickest of the Rahal Letterman Lanigan Racing contingent in 11th, whereas Helio Castroneves returned after the Indianapolis Motor Speedway crash that dominated him out of the second day in final week’s take a look at in 12th spot for Meyer-Shank Racing.
McLaughlin’s Penske team-mates Will Energy and championship chief Josef Newgarden had been solely 16th and 18th, however Newgarden’s efforts had been stymied by a technical subject which ended his session 10 minutes early.
Energy and McLaughlin turned 22 laps every as Penske makes an attempt to make up for the truth that it did no ‘pure’ highway course testing within the offseason, and has a brand new Firestone tyre to study this weekend.