Paul Aron and Prema Racing were quickest in the first collective test at Monza for the Formula Regional European Championship by Alpine.
The Estonian rose to the top of the times in the final part of the session and stayed there until the checkered flag.
A lap of 1m 46.726s saw him go 0.084s faster than his teammate Dino Beganovic, who was the fastest in the official tests two weeks ago in the temple of speed.
Michael Belov (MP Motorsport) finished third ahead of the Italian Pietro Delli Guanti (RPM), while rookie Sebastian Montoya ensured three Prema-prepared cars finished the session in the top five.
Swiss Joshua Dufek (Van Amersfoort Racing) secured the sixth quickest time ahead of Arden duo Eduardo Barrichello and Noel Leon. Kas Haverkort (Van Amersfoort Racing) and Joshua Durksen (Arden Motorsport) completed the top 10.
The second collective test is scheduled this afternoon at 3.20pm.