The 2015 FIM Moto3 World Championship was the lightweight class of the 67th Fédération Internationale de Motocyclisme (FIM) Road Racing World Championship season. Álex Márquez was the reigning series champion but he did not defend his title as he joined the series' intermediate class, Moto2. Danny Kent became Great Britain's first Grand Prix motorcycle world champion since Barry Sheene in , by winning the championship at the final race of the season in Valencia. Leopard Racing rider Kent started the season with wins at three of the first four races and his lowest finish in the first half of the season was fourth, leading the championship by 66 points at the mid-season break. He only visited the podium once in the second half of the season – a victory at Silverstone – as Enea Bastianini (Gresini Racing) and latterly, Miguel Oliveira (Ajo Motorsport) started to cut into his advantage. Oliveira trailed Kent by 110 points with 6 races remaining, but finished with 4 wins and 2 seconds in those races, and took the championship race to the final event as he became the closest challenger to Kent. Ultimately, Kent's ninth-place finish in Valencia gave him the championship by six points over Oliveira; both riders finished with six wins each, as Oliveira became Portugal's first motorcycle Grand Prix race-winner. Bastianini finished third in the championship, fifty-three points behind Kent; he won one race during the season, at Misano.
Romano Fenati was the race-winner at Le Mans for Sky Racing Team VR46, and Niccolò Antonelli won two races for Ongetta–Rivacold at Brno, and Motegi. The duo battled for fourth in the championship, which was settled in Fenati's favour after Antonelli took Fenati, Efrén Vázquez and himself out of the final race at Valencia. The season's other winners were Alexis Masbou, who won the season-opening race in Qatar for SaxoPrint–RTG, and Livio Loi, who won by nearly 40 seconds at Indianapolis in a wet-to-dry race for RW Racing GP. The top rookie rider was Jorge Navarro for Estrella Galicia 0,0 in seventh place in the final championship standings; he finished with four podium finishes in the final five races. The manufacturers' standings were headed by Honda for the first time in the lightweight class since , with at least one motorcycle from the company finishing on the podium – including eleven wins – at every race during the season. Honda finished 70 points clear of KTM, who won the remaining 7 races.
2015 was the last season that Eni was the sole fuel supplier for Moto3, as Total became the new fuel supplier for 2016.
Calendar
The Fédération Internationale de Motocyclisme released an 18-race official calendar on 26 September 2014.
Round Date Grand Prix Circuit 1 29 March ‡ Commercial Bank Grand Prix of Qatar Losail International Circuit, Lusail 2 12 April Red Bull Grand Prix of the Americas Circuit of the Americas, Austin 3 19 April Gran Premio Red Bull de la República Argentina 4 3 May Gran Premio bwin de España Circuito de Jerez, Jerez de la Frontera 5 17 May Monster Energy Grand Prix de France Bugatti Circuit, Le Mans 6 31 May Gran Premio d'Italia TIM Mugello Circuit, Scarperia e San Piero 7 14 June Gran Premi Monster Energy de Catalunya Circuit de Barcelona-Catalunya, Montmeló 8 27 June †† Motul TT Assen TT Circuit Assen, Assen 9 12 July GoPro Motorrad Grand Prix Deutschland Sachsenring, Hohenstein-Ernstthal 10 9 August Red Bull Indianapolis Grand Prix Indianapolis Motor Speedway, Speedway 11 16 August bwin Grand Prix České republiky Brno Circuit, Brno 12 30 August Octo British Grand Prix Silverstone Circuit, Silverstone 13 Misano World Circuit Marco Simoncelli, Misano Adriatico 14 27 September Gran Premio Movistar de Aragón MotorLand Aragón, Alcañiz 15 11 October Motul Grand Prix of Japan Twin Ring Motegi, Motegi 16 18 October Pramac Australian Motorcycle Grand Prix Phillip Island Grand Prix Circuit, Phillip Island 17 25 October Shell Malaysia Motorcycle Grand Prix Sepang International Circuit, Sepang 18 8 November Gran Premio Motul de la Comunitat Valenciana Circuit Ricardo Tormo, Valencia
‡ = Night race †† = Saturday race
Calendar changes The British Grand Prix had been scheduled to return to Donington Park for the first time since 2009, ahead of a planned move to the brand-new Circuit of Wales in 2016. However, Donington Park pulled out of hosting the event on 10 February 2015, citing financial delays. The following day, it was announced that Silverstone would host the British Grand Prix in 2015 and .
Teams and riders Starting in 2015, the rolling chassis must be homologated and supplied by the engine manufacturers participating in the Moto3 class. Each manufacturer was permitted to homologate only one version of its own chassis and one version of any third-party supplied chassis they made available. Each component designated as a performance part – relating to the chassis, swingarm, fuel tank, seat, bodywork and suspensions – could be updated a maximum of once per season and had to be available to all customers of that manufacturer at the same time.
A provisional entry list was released by the Fédération Internationale de Motocyclisme on 23 October 2014. An updated entry list was released on 2 February 2015. All teams used Dunlop tyres.
TeamConstructorMotorcycleRiderRounds CIP Mahindra Mahindra MGP3O 2 Remy Gardner All 24 Tatsuki Suzuki All Gresini Racing Team Moto3 Honda Honda NSF250RW 4 Fabio Di Giannantonio 18 33 Enea Bastianini All 55 Andrea Locatelli 1–17 Sky Racing Team VR46 KTM KTM RC250GP 5 Romano Fenati All 8 Nicolò Bulega 18 16 Andrea Migno All 6 María Herrera All 32 Isaac Viñales 1–9 37 Davide Pizzoli 14 48 Lorenzo Dalla Porta 10–18 Leopard Racing Honda Honda NSF250RW 7 Efrén Vázquez All 36 Joan Mir 16 52 Danny Kent All 76 Hiroki Ono 1–15, 17–18 Estrella Galicia 0,0 Honda Honda NSF250RW 09 Jorge Navarro All 20 Fabio Quartararo 81 Sena Yamada 14 SaxoPrint–RTG Honda Honda NSF250RW 10 Alexis Masbou All 17 John McPhee All FTR Honda FTR M315 97 Maximilian Kappler 9, 11 RW Racing GP Honda Honda NSF250RW 11 Livio Loi All San Carlo Team Italia Mahindra Mahindra MGP3O 12 Matteo Ferrari 1–13 29 Stefano Manzi 2–18 53 Marco Bezzecchi 1 96 Manuel Pagliani 14–18 Suus Honda FTR FTR M315 14 Matt Barton 16 Outox Reset Drink Team Mahindra Mahindra MGP3O 19 Alessandro Tonucci All 40 Darryn Binder All Mapfre Team Mahindra Mahindra Mahindra MGP3O 21 Francesco Bagnaia All 58 All 88 Jorge Martín All RBA Racing Team KTM KTM RC250GP 22 Ana Carrasco 2–9, 12–18 31 Niklas Ajo 1–11 32 Isaac Viñales 10–18 61 Loris Cresson 1 91 Gabriel Rodrigo All Ongetta–Rivacold Honda Honda NSF250RW 23 Niccolò Antonelli All 95 Jules Danilo All FPW Racing Kalex KTM Kalex KTM Moto3 25 Jorel Boerboom 8 26 Luke Hedger 12 Musahi RT Harc-Pro Honda Honda NSF250R 27 Keisuke Kurihara 15 34 Ryo Mizuno 15 Olly Simpson Racing KTM KTM RC250GP 35 Olly Simpson 16 Red Bull KTM Ajo KTM KTM RC250GP 41 Brad Binder All 44 Miguel Oliveira All 98 Karel Hanika All Freudenberg Racing Team KTM KTM RC250GP 45 Jonas Geitner 9 DRIVE M7 SIC KTM KTM RC250GP 63 Zulfahmi Khairuddin All 84 Jakub Kornfeil All Schedl GP Racing KTM KTM RC250GP 65 Philipp Öttl All RS Racing KTM KTM RC250GP 66 Taz Taylor 12 Minimoto Portmaggiore Mahindra Mahindra MGP3O 72 Marco Bezzecchi 6 Pos Corse FTR Honda FTR M315 73 Anthony Groppi 6 Team Hanusch Honda Honda NSF250R 86 Kevin Hanus 8, 11 Honda Team Asia Honda Honda NSF250R 89 Khairul Idham Pawi 14 Turvital di Vitali Ordeo TVR TVR Moto3 90 Adrián Gyutai 13Key Regular rider Wildcard rider
Results and standings Grands Prix Round Grand Prix Pole position Fastest lap Winning rider Winning team 1 Qatar motorcycle Grand Prix Alexis Masbou Enea Bastianini Alexis Masbou SaxoPrint–RTG Honda Report 2 Motorcycle Grand Prix of the Americas Danny Kent Miguel Oliveira Danny Kent Leopard Racing Honda Report 3 Argentine Republic motorcycle Grand Prix Miguel Oliveira Miguel Oliveira Danny Kent Leopard Racing Honda Report 4 Spanish motorcycle Grand Prix Brad Binder Danny Kent Leopard Racing Honda Report 5 French motorcycle Grand Prix Fabio Quartararo Enea Bastianini Romano Fenati Sky Racing Team VR46 KTM Report 6 Italian motorcycle Grand Prix Danny Kent Brad Binder Miguel Oliveira Red Bull KTM Ajo KTM Report 7 Catalan motorcycle Grand Prix Enea Bastianini Efrén Vázquez Danny Kent Leopard Racing Honda Report 8 Dutch TT Enea Bastianini Jorge Navarro Miguel Oliveira Red Bull KTM Ajo KTM Report 9 German motorcycle Grand Prix Danny Kent Danny Kent Danny Kent Leopard Racing Honda Report 10 Indianapolis motorcycle Grand Prix Danny Kent Danny Kent Livio Loi RW Racing GP Honda Report 11 Czech Republic motorcycle Grand Prix Niccolò Antonelli Miguel Oliveira Ongetta–Rivacold Honda Report 12 British motorcycle Grand Prix Jorge Navarro Danny Kent Danny Kent Leopard Racing Honda Report 13 Enea Bastianini Niccolò Antonelli Enea Bastianini Honda Report 14 Aragon motorcycle Grand Prix Enea Bastianini Niccolò Antonelli Miguel Oliveira Red Bull KTM Ajo KTM Report 15 Japanese motorcycle Grand Prix Romano Fenati Isaac Viñales Niccolò Antonelli Ongetta–Rivacold Honda Report 16 Australian motorcycle Grand Prix Danny Kent Miguel Oliveira Red Bull KTM Ajo KTM Report 17 Malaysian motorcycle Grand Prix Niccolò Antonelli Brad Binder Miguel Oliveira Red Bull KTM Ajo KTM Report 18 Valencian Community motorcycle Grand Prix John McPhee Romano Fenati Miguel Oliveira Red Bull KTM Ajo KTM Report
Riders' standings Scoring system Points were awarded to the top fifteen finishers. A rider had to finish the race to earn points.
Position 1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th 15th Points 25 20 16 13 11 10 9 8 7 6 5 4 3 2 1