Iannone mencatat waktu putaran terbaik 1 menit 55,088 detik. Sementara Dovizioso lebih lambat 0,179 deitk.
Duo Andrea tersebut lebih cepat dari pebalap Repsol Honda, Marc Marquez, yang sebelumnya selalu menjadi tercepat pada sesi latihan bebas pertama hingga ketiga.
Berikut hasil sesi latihan bebas keempat.
1. Andrea Iannone ITA Ducati Team (Desmosedici GP15) 1m 55.088s [Lap 3/12] 343km/h (Top Speed)
2. Andrea Dovizioso ITA Ducati Team (Desmosedici GP15) 1m 55.267s +0.179s [3/11] 341km/h
3. Marc Marquez ESP Repsol Honda Team (RC213V) 1m 55.357s +0.269s [8/13] 346km/h
4. Jorge Lorenzo ESP Movistar Yamaha MotoGP (YZR-M1) 1m 55.763s +0.675s [6/13] 335km/h
5. Valentino Rossi ITA Movistar Yamaha MotoGP (YZR-M1) 1m 55.828s +0.740s [4/14] 337km/h
6. Pol Espargaro ESP Monster Yamaha Tech 3 (YZR-M1) 1m 55.850s +0.762s [11/13] 342km/h
7. Bradley Smith GBR Monster Yamaha Tech 3 (YZR-M1) 1m 55.900s +0.812s [9/13] 341km/h
8. Cal Crutchlow GBR CWM LCR Honda (RC213V) 1m 55.931s +0.843s [7/12] 340km/h
9. Aleix Espargaro ESP Team Suzuki Ecstar (GSX-RR) 1m 55.963s +0.875s [7/10] 332km/h
10. Nicky Hayden USA Aspar (RC213V-RS) 1m 55.967s +0.879s [9/11] 331km/h
11. Yonny Hernandez COL Pramac Racing (Desmosedici GP14.2) 1m 56.057s +0.969s [2/9] 344km/h
12. Dani Pedrosa ESP Repsol Honda Team (RC213V) 1m 56.062s +0.974s [9/12] 345km/h
13. Danilo Petrucci ITA Pramac Racing (Desmosedici GP14.1) 1m 56.097s +1.009s [9/11] 340km/h
14. Maverick Viñales ESP Team Suzuki Ecstar (GSX-RR)* 1m 56.291s +1.203s [10/12] 333km/h
15. Hector Barbera ESP Avintia Racing (Desmosedici GP14 Open) 1m 56.327s +1.239s [3/10] 340km/h
16. Scott Redding GBR Estrella Galicia 0,0 Marc VDS (RC213V) 1m 56.367s +1.279s [4/11] 337km/h
17. Jack Miller AUS CWM LCR Honda (RC213V-RS)* 1m 56.470s +1.382s [3/11] 334km/h
18. Stefan Bradl GER Athina Forward Racing (Forward Yamaha) 1m 56.533s +1.445s [3/9] 334km/h
19. Karel Abraham CZE Cardion AB Motoracing (RC213V-RS) 1m 56.711s +1.623s [3/11] 332km/h
20. Mike Di Meglio FRA Avintia Racing (Desmosedici GP14 Open) 1m 56.855s +1.767s [4/12] 339km/h
21. Eugene Laverty IRL Aspar (RC213V-RS)* 1m 56.873s +1.785s [4/11] 332km/h
22. Loris Baz FRA Athina Forward Racing (Forward Yamaha)* 1m 57.346s +2.258s [9/9] 331km/h
23. Alex De Angelis RSM Octo IodaRacing (ART) 1m 57.641s +2.553s [6/11] 322km/h
24. Alvaro Bautista ESP Factory Aprilia Gresini (RS-GP) 1m 57.865s +2.777s [3/11] 327km/h
25. Marco Melandri ITA Factory Aprilia Gresini (RS-GP) 1m 58.986s +3.898s [4/9] 331km/h
Fastest FP3 time:
Marc Marquez SPA Honda 1m 54.822s
Official Qatar MotoGP records:
Best lap:
Jorge Lorenzo SPA Yamaha 1m 53.927s (2008)
Fastest race lap:
Casey Stoner AUS Ducati 1m 55.153s (2008)