2015 Moto3 season
The 2015 Moto3 season was a part of the 67th F.I.M. 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 and latterly, Miguel Oliveira 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.
Grands Prix
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, Doha |
| 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 | Autódromo Termas de Río Hondo, Santiago del Estero |
| 4 | 3 May |  Gran Premio bwin de España | Circuito de Jerez, Jerez de la Frontera |
| 5 | 17 May |  Monster Energy Grand Prix de France | Le Mans Bugatti |
| 6 | 31 May |  Gran Premio d'Italia TIM | Mugello Circuit, Mugello |
| 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, Indianapolis |
| 11 | 16 August |  bwin Grand Prix České republiky | Masaryk Circuit, Brno |
| 12 | 30 August |  Octo British Grand Prix | Silverstone Circuit, Silverstone |
| 13 | 13 September |  Gran Premio TIM di San Marino e della Riviera di Rimini | Misano World Circuit Marco Simoncelli, Misano Adriatico |
| 14 | 27 September |  Gran Premio Movistar de Aragón | Motorland Aragón, Alcañiz |
| 15 | 11 October |  Grand Prix of Japan | Twin Ring Motegi, Motegi |
| 16 | 18 October |  Australian Grand Prix | Phillip Island Grand Prix Circuit, Phillip Island |
| 17 | 25 October |  Malaysian Motorcycle Grand Prix | Sepang International Circuit, Selangor |
| 18 | 8 November |  Gran Premio de la Comunitat Valenciana | Circuit Ricardo Tormo, Valencia |
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
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.
Results and standingsGrands PrixRiders' standingsManufacturers' standings |