Pierre Gasly led a Red Bull one-two at the top of the timesheet in a rain-affected second practice session ahead of the Hungarian Grand Prix.
Much like in the opening practice session, the majority of the field aimed to set times early in the session. Rain arrived after just 20 minutes of the 90-minute practice.
Front-loaded run plans were compromised by a red flag deployed just moments into the session after a crash for Toro Rosso’s Alexander Albon.
The rookie dipped his left-side tyres onto the grass on the entrance to the final corner, spinning sideways across the run-off and into the barriers on what was his first timed lap of the session.
Equipped with the hard compound tyre, Mercedes’ Lewis Hamilton posted two rapid times to take top spot before Max Verstappen propelled his Red Bull above the championship leader using the medium rubber.
But Gasly would soon depose his team-mate, recording a 1m17.854s benchmark on the red-marked soft tyre to edge Verstappen by 0.055s.
Verstappen’s best lap included a middle sector split in which he was hindered by traffic.
Behind his team-mate Hamilton, Valtteri Bottas finished fourth for Mercedes with the team having fixed the powerunit misfire which halted his progress after his install lap in opening practice.
Renault’s Daniel Ricciardo was fifth ahead of Kimi Raikkonen for Alfa Romeo, with both drivers recording session-best efforts on the soft rubber.
Ferrari’s Charles Leclerc drove into seventh place on the timesheet on the medium rubber, nearly a full second adrift of the pacesetter Gasly.
Nico Hulkenberg, Antonio Giovinazzi and Daniil Kvyat were separated by less than a tenth as they rounded out the top 10.
The Haas duo of Romain Grosjean and Kevin Magnussen ended up 11th and 12th, albeit running the medium and hard tyre options respectively. Sebastian Vettel was 13th on the hard tyre.
Carlos Sainz Jr attempted to run on slick tyres with around 30 minutes of the session remaining, but despite some marshals posts not reporting rain, the McLaren driver found the circuit to be deep within intermediate territory.
His team-mate Lando Norris was sidelined early courtesy of a hydraulic leak.