Pebalap Ducati Team (Andrea Dovizioso, Andrea Iannone) dan Karel Abraham yang cedera tidak ikut uji coba. Pebalap penguji Ducati, Michele Pirro, ambil bagian untuk mencoba ban Michelin.
Duo Repsol Honda, Marc Marquez dan Dani Pedrosa, akan mencoba mesin 2014 dan 2015, dan juga elektronik. Sementara Eugene Laverty akan mencoba swingarm baru dari Honda.
Uji coba ini juga jadi kesempatan terakhir Honda dan Yamaha untuk menguji hal baru. Setelah GP Jerman di Sirkuit Sachsenring yang akan berlangsung 10-12 Juli, pemakain software internal untuk ECU mereka akan dihentikan.
Ducati akan tetap berada di Catalunya setelah uji coba hari ini. Mereka akan melanjutkan uji coba pada Rabu (17/6/2015). Sementara Honda akan bergeser ke Aragon untuk uji coba ban Michelin pada Selasa (16/6/2015), dilanjutkan dengan uji coba memakai ban musim ini, Bridgestone, pada Rabu.
Uji coba hari ini digelar selama delapan jam, 10.00-18.00 waktu setempat (15.00-23.00 WIB). Hujan yang mulai turun pada 11.30 waktu setempat, memaksa para pebalap kembali ke pit.
Berikut hasil sementara uji coba di Catalunya.
Hingga pukul 11.00 waktu setempat (16.00 WIB):
1. Maverick Viñales ESP Team Suzuki Ecstar (GSX-RR)* 1m 42.069s [Lap 2/12]
2. Aleix Espargaro ESP Team Suzuki Ecstar (GSX-RR) 1m 42.127s +0.058s [7/11]
3. Marc Marquez ESP Repsol Honda Team (RC213V) 1m 42.197s +0.128s [3/14]
4. Yonny Hernandez COL Pramac Racing (Desmosedici GP14.2) 1m 42.332s +0.263s [2/7]
5. Dani Pedrosa ESP Repsol Honda Team (RC213V) 1m 42.386s +0.317s [5/6]
6. Jack Miller AUS CWM LCR Honda (RC213V-RS)* 1m 42.512s +0.443s [8/11]
7. Pol Espargaro ESP Monster Yamaha Tech 3 (YZR-M1) 1m 42.673s +0.604s [8/10]
8. Stefan Bradl GER Athina Forward Racing (Forward Yamaha) 1m 42.747s +0.678s [8/9]
9. Bradley Smith GBR Monster Yamaha Tech 3 (YZR-M1) 1m 42.866s +0.797s [8/13]
10. Nicky Hayden USA Aspar MotoGP Team (RC213V-RS) 1m 42.949s +0.880s [3/9]
11. Danilo Petrucci ITA Pramac Racing (Desmosedici GP14.1) 1m 43.143s +1.074s [3/5]
12. Alvaro Bautista ESP Factory Aprilia Gresini (RS-GP) 1m 43.219s +1.150s [6/7]
13. Scott Redding GBR Estrella Galicia 0,0 Marc VDS (RC213V) 1m 43.391s +1.322s [3/17]
14. Mike Di Meglio FRA Avintia Racing (Desmosedici GP14 Open) 1m 44.054s +1.985s [7/7]
15. Eugene Laverty IRL Aspar MotoGP Team (RC213V-RS)* 1m 44.517s +2.448s [11/12]
16. Marco Melandri ITA Factory Aprilia Gresini (RS-GP) 1m 45.107s +3.038s [11/11]
Hingga pukul 12.00 waktu setempat (17.00 WIB):
1. Bradley Smith GBR Monster Yamaha Tech 3 (YZR-M1) 1m 42.018s [Lap 17/18]
2. Maverick Viñales ESP Team Suzuki Ecstar (GSX-RR)* 1m 42.069s +0.051s [2/20]
3. Aleix Espargaro ESP Team Suzuki Ecstar (GSX-RR) 1m 42.127s +0.109s [7/11]
4. Marc Marquez ESP Repsol Honda Team (RC213V) 1m 42.197s +0.179s [3/20]
5. Yonny Hernandez COL Pramac Racing (Desmosedici GP14.2) 1m 42.332s +0.314s [2/10]
6. Dani Pedrosa ESP Repsol Honda Team (RC213V) 1m 42.386s +0.368s [5/16]
7. Jack Miller AUS CWM LCR Honda (RC213V-RS)* 1m 42.512s +0.494s [8/20]
8. Pol Espargaro ESP Monster Yamaha Tech 3 (YZR-M1) 1m 42.673s +0.655s [8/18]
9. Stefan Bradl GER Athina Forward Racing (Forward Yamaha) 1m 42.747s +0.729s [8/14]
10. Cal Crutchlow GBR CWM LCR Honda (RC213V) 1m 42.857s +0.839s [4/6]
11. Nicky Hayden USA Aspar MotoGP Team (RC213V-RS) 1m 42.949s +0.931s [3/9]
12. Scott Redding GBR Estrella Galicia 0,0 Marc VDS (RC213V) 1m 43.134s +1.116s [20/22]
13. Danilo Petrucci ITA Pramac Racing (Desmosedici GP14.1) 1m 43.143s +1.125s [3/11]
14. Alvaro Bautista ESP Factory Aprilia Gresini (RS-GP) 1m 43.219s +1.201s [6/12]
15. Mike Di Meglio FRA Avintia Racing (Desmosedici GP14 Open) 1m 44.054s +2.036s [7/15]
16. Loris Baz FRA Athina Forward Racing (Forward Yamaha)* 1m 44.249s +2.231s [3/4]
17. Eugene Laverty IRL Aspar MotoGP Team (RC213V-RS)* 1m 44.517s +2.499s [11/12]
18. Marco Melandri ITA Factory Aprilia Gresini (RS-GP) 1m 45.107s +3.089s [11/14]
Rekor GP Catalunya:
Best lap:
Aleix Espargaro SPA Suzuki 1m 40.546s (2015)
Fastest race lap:
Marc Marquez SPA Honda 1m 42.182s (2014)