After the FP1 in dry conditions, the rain affected the afternoon at the Twin Ring Circuit in Motegi, forcing the most of riders to stay in the pits for a long time.
Jack Miller is incisive in both free practice sessions and in the FP1 he conquers a good P8 that would allow him to qualify directly to Q2 in case of rain tomorrow morning. In FP2 the Australian rider is the first one to go out on track with slicks tyres and he immediately sets the best crono then finishing in P4.
Danilo Petrucci experiences some problems in FP1 and focuses on the bike set up without trying the time attack (P17). In FP2 Petrux gets back on track with a different setup and regains confidence (P3) despite the track conditions that do not allow him to improve the morning lap-time.