Hartley clocked a best time of 3m29.451s in his #8 Toyota GR010 HYBRID Le Mans Hypercar after 20 minutes of the hour-long session, and remained at the head of the leaderboard as rain began to fall at the Circuit de la Sarthe.
The three-time Le Mans winner, sharing the car that will start 11th with Ryo Hirakawa and Sebastien Buemi, was challenged hardest by Molina in the factory #50 Ferrari 499P LMH but the Spaniard fell fractionally short with his best effort at the session's mid-way point.
