Jack Aitken finished first in the GP3 practice session at Hockenheim after setting a lap time of 1 minute 28.955. He finished one and a half tenths ahead of Charles Leclerc.
Antonio Fuoco was the man in third, ahead of Fellow Ferrair Driver Academy member Guiliano Alesi. Santino Ferucci was fifth, marginally ahead of the Campos car of Steijn Schothorst who had trouble with his car and stopped out on track, causing a red flag.
Jake Hughes finished in seventh, ahead of championship leader Alex Albon. Jake Dennis and ART driver Nyck De Vries rounded out the top ten.