Andretti, in his No. 27 Andretti Autosport Honda, lapped the Barber Motorsports Park Track in 1 minute, 7.7134 seconds at 122.280 mph to top the combined speed chart from his two practice sessions. Will Power was second at 1:07.7454 at 122.222 mph.
Marco Andretti last won 95 races ago at Iowa Speedway in June 2011. The 30-year-old third generation Indy car driver knows Friday's results mean little, but likes where he stands heading into knockout qualifying Saturday.
Andretti said, "It's very important to qualify well here, so I'm pleased that we have the pace to hopefully be able to do that, But yeah, so far, so good. We just need to replicate it tomorrow."