The 2015 British motorcycle Grand Prix was the twelfth round of the 2015 Grand Prix motorcycle racing season. It was held at the Silverstone Circuit in Silverstone on 30 August 2015. The MotoGP and Moto3 races were held in wet conditions, while the Moto2 race was in dry conditions with cloudy weather.

In the premier class, Marc Márquez took his sixth pole position of the season and recorded the fastest lap by a motorcycle since Silverstone was renovated, with a 2:00.234 lap time. In the race, he battled with Valentino Rossi for first place, but he crashed out of the race with 8 laps remaining. Rossi led home an all-Italian podium for his fourth victory of the season, and his first at Silverstone. Danilo Petrucci finished in second place and recorded his first MotoGP podium, while Andrea Dovizioso finished in third place. Jorge Lorenzo and Dani Pedrosa had good starting positions, but they dropped back into 4th and 5th places respectively. Both LCR Honda riders failed to complete the race; after Jack Miller collided with his teammate Cal Crutchlow, who later retired from the race after a second crash. Yonny Hernández crashed out of the race at Turn 1 of the first lap, while Stefan Bradl and Pol Espargaró also crashed out of the race before the halfway mark. Rossi extended his lead in the championship standings to 12 points from his teammate, Lorenzo.

In the smaller classes, championship leaders Johann Zarco (Moto2) and Danny Kent (Moto3) won their respective races, to extend their championship leads.

Classification MotoGP The race start was delayed due to weather conditions, and ultimately started at 13:25 local time.

Pos. No. Rider Team Manufacturer Laps Time/Retired Grid Points 1 46 Valentino Rossi Movistar Yamaha MotoGP Yamaha 20 46:15.617 4 25 2 9 Danilo Petrucci Octo Pramac Racing Ducati 20 +3.010 18 20 3 4 Andrea Dovizioso Ducati Team Ducati 20 +4.117 12 16 4 99 Jorge Lorenzo Movistar Yamaha MotoGP Yamaha 20 +5.726 2 13 5 26 Dani Pedrosa Repsol Honda Team Honda 20 +11.132 3 11 6 45 Scott Redding EG 0,0 Marc VDS Honda 20 +25.467 7 10 7 38 Bradley Smith Monster Yamaha Tech 3 Yamaha 20 +26.717 6 9 8 29 Andrea Iannone Ducati Team Ducati 20 +29.393 9 8 9 41 Aleix Espargaró Team Suzuki Ecstar Suzuki 20 +38.815 10 7 10 19 Álvaro Bautista Aprilia Racing Team Gresini Aprilia 20 +41.712 20 6 11 25 Maverick Viñales Team Suzuki Ecstar Suzuki 20 +44.776 13 5 12 69 Nicky Hayden Aspar MotoGP Team Honda 20 +52.489 21 4 13 8 Héctor Barberá Avintia Racing Ducati 20 +1:11.211 17 3 14 63 Mike Di Meglio Avintia Racing Ducati 20 +1:15.292 22 2 15 15 Alex de Angelis E-Motion IodaRacing Team ART 20 +1:17.863 25 1 16 76 Loris Baz Forward Racing Yamaha Forward 20 +1:19.310 15 17 50 Eugene Laverty Aspar MotoGP Team Honda 20 +1:19.735 19 18 71 Claudio Corti Forward Racing Yamaha Forward 20 +1:58.086 23 19 17 Karel Abraham AB Motoracing Honda 19 +1 lap 24 Ret 44 Pol Espargaró Monster Yamaha Tech 3 Yamaha 14 Accident 5 Ret 93 Marc Márquez Repsol Honda Team Honda 12 Accident 1 Ret 6 Stefan Bradl Aprilia Racing Team Gresini Aprilia 12 Accident 14 Ret 35 Cal Crutchlow LCR Honda Honda 4 Accident Damage 8 Ret 43 Jack Miller LCR Honda Honda 2 Collision 16 Ret 68 Yonny Hernández Octo Pramac Racing Ducati 0 Accident 11 Sources:

Moto2 Pos. No. Rider Manufacturer Laps Time/Retired Grid Points 1 5 Johann Zarco Kalex 18 42:53.674 3 25 2 40 Álex Rins Kalex 18 +3.360 2 20 3 1 Tito Rabat Kalex 18 +5.527 4 16 4 73 Álex Márquez Kalex 18 +6.489 9 13 5 94 Jonas Folger Kalex 18 +8.228 7 11 6 22 Sam Lowes Speed Up 18 +28.261 1 10 7 95 Anthony West Speed Up 18 +33.902 22 9 8 11 Sandro Cortese Kalex 18 +33.939 10 8 9 12 Thomas Lüthi Kalex 18 +34.889 5 7 10 88 Ricard Cardús Suter 18 +35.084 23 6 11 23 Marcel Schrötter Tech 3 18 +38.814 18 5 12 4 Randy Krummenacher Kalex 18 +39.190 14 4 13 77 Dominique Aegerter Kalex 18 +47.780 11 3 14 30 Takaaki Nakagami Kalex 18 +57.103 6 2 15 49 Axel Pons Kalex 18 +1:00.071 13 1 16 55 Hafizh Syahrin Kalex 18 +1:02.268 12 17 39 Luis Salom Kalex 18 +1:04.389 17 18 60 Julián Simón Speed Up 18 +1:04.806 16 19 25 Azlan Shah Kalex 18 +1:07.910 20 20 36 Mika Kallio Kalex 18 +1:08.594 19 21 2 Jesko Raffin Kalex 18 +1:10.950 25 22 97 Xavi Vierge Tech 3 18 +1:11.354 24 23 70 Robin Mulhauser Kalex 18 +1:39.471 28 24 66 Florian Alt Suter 18 +1:51.325 29 25 19 Xavier Siméon Kalex 17 +1 lap 21 26 64 Federico Caricasulo Kalex 17 +1 lap 30 27 96 Louis Rossi Tech 3 16 +2 laps 26 Ret 10 Thitipong Warokorn Kalex 16 Accident 27 Ret 7 Lorenzo Baldassarri Kalex 13 Accident Damage 8 Ret 3 Simone Corsi Kalex 13 Accident Damage 15 Ret 28 Bradley Ray FTR 2 Accident 31OFFICIAL MOTO2 REPORT

Moto3 Pos. No. Rider Manufacturer Laps Time/Retired Grid Points 1 52 Danny Kent Honda 17 44:13.623 3 25 2 84 Jakub Kornfeil KTM 17 +8.492 13 20 3 23 Niccolò Antonelli Honda 17 +13.189 18 16 4 20 Fabio Quartararo Honda 17 +50.018 11 13 5 11 Livio Loi Honda 17 +51.755 28 11 6 17 John McPhee Honda 17 +53.726 12 10 7 58 Juan Francisco Guevara Mahindra 17 +1:01.086 19 9 8 48 Lorenzo Dalla Porta Husqvarna 17 +1:06.158 27 8 9 7 Efrén Vázquez Honda 17 +1:08.634 4 7 10 24 Tatsuki Suzuki Mahindra 17 +1:13.589 33 6 11 10 Alexis Masbou Honda 17 +1:18.961 6 5 12 5 Romano Fenati KTM 17 +1:27.462 8 4 13 44 Miguel Oliveira KTM 17 +1:31.210 9 3 14 63 Zulfahmi Khairuddin KTM 17 +1:37.523 29 2 15 16 Andrea Migno KTM 17 +1:38.004 17 1 16 65 Philipp Öttl KTM 17 +1:40.376 24 17 2 Remy Gardner Mahindra 17 +1:50.488 22 18 26 Luke Hedger Kalex KTM 17 +2:30.582 36 19 66 Taz Taylor KTM 16 +1 lap 35 20 76 Hiroki Ono Honda 16 +1 lap 31 Ret 21 Francesco Bagnaia Mahindra 15 Accident 15 Ret 33 Enea Bastianini Honda 15 Accident 7 Ret 29 Stefano Manzi Mahindra 15 Accident 26 Ret 55 Andrea Locatelli Honda 14 Accident 20 Ret 40 Darryn Binder Mahindra 14 Accident Damage 25 Ret 19 Alessandro Tonucci Mahindra 12 Accident 30 Ret 88 Jorge Martín Mahindra 10 Accident 16 Ret 95 Jules Danilo Honda 8 Accident 23 Ret 41 Brad Binder KTM 8 Accident 10 Ret 98 Karel Hanika KTM 6 Accident 2 Ret 32 Isaac Viñales KTM 6 Accident Damage 5 Ret 6 María Herrera Husqvarna 6 Brakes 14 Ret 22 Ana Carrasco KTM 6 Accident 34 Ret 12 Matteo Ferrari Mahindra 1 Brakes 32 Ret 9 Jorge Navarro Honda 0 Accident 1 Ret 91 Gabriel Rodrigo KTM 0 Accident 21 OFFICIAL MOTO3 REPORT

Championship standings after the race (MotoGP) Below are the standings for the top five riders and constructors after round twelve has concluded.

Riders' Championship standings Rider Points 1 Valentino Rossi 236 2 Jorge Lorenzo 224 3 Marc Márquez 159 4 Andrea Iannone 150 5 Andrea Dovizioso 120

Constructors' Championship standings Constructor Points 1 Yamaha 277 2 Honda 215 3 Ducati 187 4 Suzuki 89 5 Aprilia 22

Teams' Championship standings Team Points 1 Movistar Yamaha MotoGP 460 2 Ducati Team 270 3 Repsol Honda Team 266 4 Monster Yamaha Tech 3 196 5 Team Suzuki Ecstar 127

Note: Only the top five positions are included for all standings.

References