2019 MotoGP World Championship
After fifteen rounds of the championship, Marc Márquez successfully defended his Rider's Championship in Thailand taking his sixth premier class title and fourth in a row, having already won nine races. He ultimately won 12 races, breaking the single-season points and podium records with 420 points and 18 podium finishes from 19 races. Andrea Dovizioso once again finished second for Ducati for the third consecutive season with two wins, and Maverick Viñales with Yamaha sealed third with two wins. Álex Rins and Danilo Petrucci were the other race winners, both riders achieving their first-ever race wins during the season. In spite of Márquez's sizeable championship margin, seven races, namely Qatar, Italy, Austria, Britain, San Marino, Thailand and Australia were decided with last-lap passes, the season having seen plenty of close racing.
Teams and riders
- Tech3 switched to KTM machines, ending their twenty-year satellite relationship with Yamaha. As a result of this link-up, Tech3 dropped long-time title sponsor Monster Energy, replaced by rival Austrian energy drink Red Bull.
- Ángel Nieto Team joined forces with SIC Racing Team to field two Yamaha YZR-M1 satellite bikes, replacing Tech 3 as Yamaha's satellite team. 
- EG 0,0 Marc VDS shut down their MotoGP class operation to make room for MotoE bikes.
- Francesco Bagnaia was promoted to the MotoGP class, joining Pramac Racing. He replaced Danilo Petrucci, who moved to Ducati Corse, taking over the seat vacated by Jorge Lorenzo.
- Andrea Iannone left Suzuki at the end of the 2018 championship after two seasons. He joined Aprilia where he replaced Scott Redding, who moved to the British Superbike Championship. 2017 Moto3 champion Joan Mir took over the seat vacated by Iannone at Suzuki.
- Miguel Oliveira was promoted to the MotoGP class, joining Tech 3 and partner with Malaysian rider Hafizh Syahrin. He will become the first rider to come through the Red Bull KTM system to the premier class, having competed in the Rookies Cup, Moto3 and Moto2 with KTM bikes.
- Jorge Lorenzo left Ducati's factory team after two seasons to join Repsol Honda. He replaced Dani Pedrosa, who retired at the conclusion of the 2018 season to take a testing role with KTM.
- Johann Zarco left Tech 3 to join Red Bull KTM Factory Racing. He replaced Bradley Smith who switched to the MotoE World Cup.
- Franco Morbidelli joined Petronas Yamaha Sepang Racing. He was partnered by Fabio Quartararo.
- Thomas Lüthi stepped back to Moto2 with the Dynavolt Intact GP team.
- Having competed in MotoGP since 2010, Álvaro Bautista switched to the Superbike World Championship.
- Karel Abraham joined Avintia Racing after two seasons with Aspar Racing Team/Ángel Nieto Team.
- Xavier Simeon switched to the MotoE World Cup while remaining with Avintia Racing.
- Maverick Viñales changed his race number to 12, replacing the number 25 he had previously used for the majority of his Grand Prix racing career.
- Because of two fractured vertebrae sustained in Assen, Jorge Lorenzo was absent from the German, Czech and Austrian rounds. He was replaced by Stefan Bradl.
- Because of a pulmonary contusion, Joan Mir missed the Austrian and British rounds. He was replaced by Sylvain Guintoli at Silverstone.
- Mika Kallio replaced Johann Zarco following his early release by KTM, starting from the Aragon Grand Prix.
- Johann Zarco replaced Takaaki Nakagami in the Australian, Malaysian and Valencian rounds, following the decision of the Japanese rider to operate on his right shoulder following a trauma sustained during the championship.
- Moto2 rider Iker Lecuona made his MotoGP debut prematurely at the final race of the season, replacing Miguel Oliveira at Tech3, who was sidelined following an injury sustained at the Australian Grand Prix. Lecuona was previously signed to race for Tech3 in MotoGP beginning in 2020.
The season saw the introduction of a new penalty called the "Long Lap" penalty for infractions such as exceeding track limits or engaging in reckless riding. At each circuit, a route is to be defined and marked at a safe point around the circuit (usually an asphalt run-off area outside of a turn). The penalised rider must ride through the defined area within 3 laps of being notified, thereby suffering a penalty equivalent typically to 2 or more seconds on that lap. 
The following Grands Prix took place during the season:
|1||10 March||VisitQatar Grand Prix||Losail International Circuit, Lusail|
|2||31 March||Gran Premio Motul de la República Argentina||Autódromo Termas de Río Hondo, Termas de Río Hondo|
|3||14 April||Red Bull Grand Prix of The Americas||Circuit of the Americas, Austin|
|4||5 May||Gran Premio Red Bull de España||Circuito de Jerez-Ángel Nieto, Jerez de la Frontera|
|5||19 May||SHARK Helmets Grand Prix de France||Circuit Bugatti, Le Mans|
|6||2 June||Gran Premio d'Italia Oakley||Mugello Circuit, Scarperia e San Piero|
|7||16 June||Gran Premi Monster Energy de Catalunya||Circuit de Barcelona-Catalunya, Montmeló|
|8||30 June||Motul TT Assen||TT Circuit Assen, Assen|
|9||7 July||HJC Helmets Motorrad Grand Prix Deutschland||Sachsenring, Hohenstein-Ernstthal|
|10||4 August||Monster Energy Grand Prix České republiky||Automotodrom Brno, Brno|
|11||11 August||myWorld Motorrad Grand Prix von Österreich||Red Bull Ring, Spielberg|
|12||25 August||GoPro British Grand Prix||Silverstone Circuit, Silverstone|
|13||15 September||Gran Premio Octo di San Marino e della Riviera di Rimini||Misano World Circuit Marco Simoncelli, Misano Adriatico|
|14||22 September||Gran Premio Michelin de Aragón||MotorLand Aragón, Alcañiz|
|15||6 October||PTT Thailand Grand Prix||Buriram International Circuit, Buriram|
|16||20 October||Motul Grand Prix of Japan||Twin Ring Motegi, Motegi|
|17||27 October||Pramac Generac Australian Motorcycle Grand Prix||Phillip Island Grand Prix Circuit, Phillip Island|
|18||3 November||Shell Malaysia Motorcycle Grand Prix||Sepang International Circuit, Selangor|
|19||17 November||Gran Premio Motul de la Comunitat Valenciana||Circuit Ricardo Tormo, Valencia|
Results and standings
|Round||Grand Prix||Pole position||Fastest lap||Winning rider||Winning team||Winning constructor||Report|
|1||Qatar motorcycle Grand Prix||Maverick Viñales||Fabio Quartararo||Andrea Dovizioso||Mission Winnow Ducati||Ducati||Report|
|2||Argentine motorcycle Grand Prix||Marc Márquez||Marc Márquez||Marc Márquez||Repsol Honda Team||Honda||Report|
|3||Motorcycle Grand Prix of the Americas||Marc Márquez||Marc Márquez||Álex Rins||Team SUZUKI ECSTAR||Suzuki||Report|
|4||Spanish motorcycle Grand Prix||Fabio Quartararo||Marc Márquez||Marc Márquez||Repsol Honda Team||Honda||Report|
|5||French motorcycle Grand Prix||Marc Márquez||Fabio Quartararo||Marc Márquez||Repsol Honda Team||Honda||Report|
|6||Italian motorcycle Grand Prix||Marc Márquez||Jack Miller||Danilo Petrucci||Mission Winnow Ducati||Ducati||Report|
|7||Catalan motorcycle Grand Prix||Fabio Quartararo||Marc Márquez||Marc Márquez||Repsol Honda Team||Honda||Report|
|8||Dutch TT||Fabio Quartararo||Marc Márquez||Maverick Viñales||Monster Energy Yamaha MotoGP||Yamaha||Report|
|9||German motorcycle Grand Prix||Marc Márquez||Marc Márquez||Marc Márquez||Repsol Honda Team||Honda||Report|
|10||Czech Republic motorcycle Grand Prix||Marc Márquez||Álex Rins||Marc Márquez||Repsol Honda Team||Honda||Report|
|11||Austrian motorcycle Grand Prix||Marc Márquez||Andrea Dovizioso||Andrea Dovizioso||Mission Winnow Ducati||Ducati||Report|
|12||British motorcycle Grand Prix||Marc Márquez||Marc Márquez||Álex Rins||Team SUZUKI ECSTAR||Suzuki||Report|
|13||San Marino and Rimini Riviera motorcycle Grand Prix||Maverick Viñales||Marc Márquez||Marc Márquez||Repsol Honda Team||Honda||Report|
|14||Aragon motorcycle Grand Prix||Marc Márquez||Marc Márquez||Marc Márquez||Repsol Honda Team||Honda||Report|
|15||Thailand motorcycle Grand Prix||Fabio Quartararo||Marc Márquez||Marc Márquez||Repsol Honda Team||Honda||Report|
|16||Japanese motorcycle Grand Prix||Marc Márquez||Marc Márquez||Marc Márquez||Repsol Honda Team||Honda||Report|
|17||Australian motorcycle Grand Prix||Maverick Viñales||Maverick Viñales||Marc Márquez||Repsol Honda Team||Honda||Report|
|18||Malaysian motorcycle Grand Prix||Fabio Quartararo||Valentino Rossi||Maverick Viñales||Monster Energy Yamaha MotoGP||Yamaha||Report|
|19||Valencian Community motorcycle Grand Prix||Fabio Quartararo||Marc Márquez||Marc Márquez||Repsol Honda Team||Honda||Report|
- Scoring system
Points are awarded to the top fifteen finishers. A rider has to finish the race to earn points.
P – Pole
P – Pole
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- "Aleix Espargaro continues with Aprilia for 2019 and 2020". MotoGP.com. Dorna Sports. 17 May 2018. Retrieved 17 May 2018.
- "Aprilia, starts off with three riders in the opening race at Qatar". Bradley Smith 38.com. Retrieved 7 March 2019.
- "Dovizioso stays with Ducati for two more seasons". MotoGP.com. Dorna Sports. 18 May 2018. Retrieved 18 May 2018.
- "Petrucci joins factory Ducati". MotoGP.com. Dorna Sports. 6 June 2018. Retrieved 6 June 2018.
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- "Ducati hopes simpler teams structure will help". Eurosport.com. 1 January 2019. Retrieved 28 January 2019.
- "Bagnaia confirmed in MotoGP in 2019 and 2020". MotoGP.com. Dorna Sports. 21 February 2018. Retrieved 21 February 2018.
- "Reale Avintia Racing sign Abraham for 2019 and 2020". MotoGP.com. Dorna Sports. 5 September 2018. Retrieved 5 September 2018.
- "Marquez to stay at Repsol Honda in 2019 and 2020". MotoGP.com. Dorna Sports. 26 February 2018. Retrieved 26 February 2018.
- "CONFIRMED: Lorenzo to ride for Repsol Honda in 2019 and 2020". MotoGP.com. Dorna Sports. 6 June 2018. Retrieved 6 June 2018.
- "Bradl to stand in for Lorenzo at the Sachsenring". Retrieved 2 July 2019.
- "Bradl to make Honda wildcard outing at Jerez". Retrieved 8 March 2019.
- "Crutchlow signs two year deal with HRC to remain at LCR". MotoGP.com. Dorna Sports. 21 June 2017. Retrieved 21 June 2017.
- Klein, Jamie (1 August 2019). "Nakagami pushing Honda for works-spec bike next year". Motorsport.com. Retrieved 16 November 2020.
- Emmett, David (11 October 2019). "Johann Zarco To Replace Takaaki Nakagami At LCR Honda For 3 Races - Prelude To 2020 Contract?". Motomatters.com. Retrieved 16 November 2020.
- "Nakagami to continue with LCR Honda Idemitsu in 2019". MotoGP.com. Dorna Sports. 16 October 2018.
- "Zarco joins KTM for 2019 and 2020 seasons". MotoGP.com. Dorna Sports. 3 May 2018. Retrieved 3 May 2018.
- "Pol Espargaro signs new two-year contract with KTM". MotoGP.com. Dorna Sports. 2 May 2018. Retrieved 2 May 2018.
- "Syahrin to remain at Tech 3 in 2019". MotoGP.com. Dorna Sports. 6 June 2018. Retrieved 6 June 2018.
- "Oliveira heading for MotoGP™ in 2019, with KTM Tech 3". MotoGP.com. Dorna Sports. 5 May 2018. Retrieved 5 May 2018.
- "Mir confirmed at Suzuki in 2019 and 2020". MotoGP.com. Dorna Sports. 11 June 2018. Retrieved 12 June 2018.
- "Rins to stay with Team Suzuki Ecstar for two more seasons". MotoGP.com. Dorna Sports. 17 May 2018. Retrieved 17 May 2018.
- "Vinales to remain at Yamaha in 2019 and 2020". MotoGP.com. Dorna Sports. 24 January 2018. Retrieved 24 January 2018.
- "Rossi signs new two year deal with Movistar Yamaha". MotoGP.com. Dorna Sports. 15 March 2018. Retrieved 15 March 2018.
- "Morbidelli, Quartararo revealed in Petronas Yamaha presentation". crash.net. Retrieved 24 August 2018.
- "FIM Grand Prix World Championship 2019 Provisional Entry Lists" (PDF). fim-live.com. Fédération Internationale de Motocyclisme. Archived from the original (PDF) on 16 November 2018. Retrieved 16 November 2018.
- "KTM and Tech 3 to cooperate in MotoGP from 2019". MotoGP.com. Dorna Sports. 5 March 2018. Retrieved 5 March 2018.
- "Angel Nieto Team join forces with SIC from 2019". MotoGP.com. Dorna Sports. Retrieved 5 July 2018.
- Herrero, Daniel (1 June 2018). "Iannone confirms Suzuki exit". Speedcafe.com. Retrieved 5 January 2020.
- Khorounzhiy, Valentin (8 June 2018). "Aprilia confirms Iannone will replace Redding". Motorsport.com. Retrieved 8 June 2018.
- "Pedrosa announces retirement". MotoGP.com. Retrieved 6 January 2019.
- Valentin Khorounzhiy (5 June 2018). "Honda confirms Pedrosa to leave at the end of 2018". Motorsport.com. Retrieved 5 June 2018.
- Oriol Puigdemont (5 June 2018). "Lorenzo and Honda agree two-year deal". Motorsport.com. Retrieved 5 June 2018.}
- Valentin Khorounzhiy (12 August 2018). "Marc VDS MotoGP rider Tom Luthi to step back to Moto2 in 2019". Autosport.com. Retrieved 6 January 2019.
- Jamie Klein (16 November 2018). "Maverick Vinales to change race number for 2019 MotoGP season". Autosport.com. Retrieved 7 January 2019.
- "Bradl to stand in for Lorenzo at the Sachsenring". Retrieved 2 July 2019.
- Duncan, Lewis (20 August 2019). "Guintoli replaces Mir for Silverstone MotoGP race". motorsport.com. Retrieved 17 November 2019.
- "Johann Zarco replaced by Mika Kallio for rest of 2019 season". Retrieved 17 November 2019.
- "Zarco to replace Nakagami for final three rounds of 2019". Retrieved 17 November 2019.
- "Lecuona to replace injured Oliveira in Valencia". 7 November 2019. Retrieved 17 November 2019.
- "Long lap penalty introduced". motogp.com. 1 March 2019. Archived from the original on 27 July 2019. Retrieved 17 November 2019.
- "Provisional 2019 calendar released". MotoGP.com. Dorna Sports. 4 September 2018. Retrieved 4 September 2018.
- Dorna is prohibited from using the sponsored name of the circuit because of Qatari and French laws regarding alcohol advertising.