1. Daniel Ricciardo AUS Red Bull – TAG 1m 32.349s 43 laps
2. Lewis Hamilton GBR Mercedes – Mercedes 1m 32.822s 27 laps
3. Nico Hulkenberg GER Renault – Renault 1m 33.624s 43 laps
4. Lance Stroll CAN Williams – Mercedes 1m 33.729s 35 laps
5. Romain Grosjean FRA Haas-Ferrari 1m 33.848s 40 laps
6. Antonio Giovinazzi ITA Ferrari- Ferrari 1m 34.967s 62 laps
7. Sebastian Vettel GER Ferrari – Ferrari 1m 35.043s * 48 laps
8. Marcus Ericsson SWE Sauber – Ferrari 1m 35.317s 52 laps
9. Alfonso Celis MEX Force India-Mercedes 1m 37.661s 21 laps
10. Sean Gelael INA Toro Rosso-Renault 1m 38.111s 27 laps
11. Oliver Turvey GBR McLaren-Honda No Time 2 laps
* Pirelli tire test
McLaren engine partner Honda ran into further trouble on the opening day of 2017's first in-season test at the Bahrain International Circuit, severely restricting mileage.
Honda, having endured a run of MGU-H problems over the Bahrain Grand Prix weekend, set its sights on improving reliability and performance at the two-day test.
However, test and development driver Oliver Turvey completed only two laps before being sidelined when a water leak was detected from the ERS, with investigations ongoing.
In the interest of time, Honda elected to change the power unit inside the MCL32, with a view to sending Formula E racer Turvey back out on track at some point in the afternoon.
Stoffel Vandoorne failed to make the start on Sunday evening due to a water pressure issue, while Fernando Alonso retired three laps from the finish amid power loss.