Pebalap Inggris ini diikuti rekan setimnya, Nico Rosberg di posisi kedua dan pebalap Red Bull Racing, Sebastian Vettel di posisi ketiga.
Sementara itu posisi keempat dan kelima masing-masing ditempati oleh pebalap Scuderia Ferrari, Fernando Alonso dan pebalap McLaren, Kevin Magnussen.
Hasil sesi latihan bebas pertama F1 GP Hungaria:
1. Lewis Hamilton - Mercedes-Mercedes - 1m 24.482s
2. Nico Rosberg - Mercedes-Mercedes - 1m 24.720s
3. Sebastian Vettel - Red Bull-Renault - 1m 25.111s
4. Fernando Alonso - Ferrari-Ferrari - 1m 25.437s
5. Kevin Magnussen - McLaren-Mercedes - 1m 25.580s
6. Kimi Raikkonen - Ferrari-Ferrari - 1m 25.730s
7. Daniel Ricciardo - Red Bull-Renault - 1m 25.983s
8. Valtteri Bottas - Williams-Mercedes - 1m 25.999s
9. Jenson Button - McLaren-Mercedes - 1m 26.234s
10. Felipe Massa - Williams-Mercedes - 1m 26.402s
11. Daniil Kvyat - Toro Rosso-Renault - 1m 26.689s
12. Jean-Eric Vergne - Toro Rosso-Renault - 1m 26.703s
13. Nico Hulkenberg - Force India-Mercedes - 1m 26.789s
14. Adrian Sutil - Sauber-Ferrari - 1m 26.919s
15. Sergio Perez - Force India-Mercedes - 1m 27.013s
16. Pastor Maldonado - Lotus-Renault - 1m 27.019s
17. Romain Grosjean - Lotus-Renault - 1m 27.021s
18. Esteban Gutierrez - Sauber-Ferrari - 1m 27.480s
19. Kamui Kobayashi - Caterham-Renault - 1m 28.370s
20. Jules Bianchi - Marussia-Ferrari - 1m 28.469s
21. Max Chilton - Marussia-Ferrari - 1m 28.586s
22. Marcus Ericsson - Caterham-Renault - 1m 29.036s
Sumber: Crash.net