The following list shows the engine use for each MotoGP rider as of the Sachsenring in Germany, round 9 of 19.
Manufacturers without concessions (Honda, Ducati, Yamaha and Suzuki) are allowed a maximum of seven engine changes for each rider:
Ducati:
Andrea Dovizioso (Ducati Team) 4 engines used, 0 withdrawn.
Danilo Petrucci (Ducati Team) 4 engines used, 0 withdrawn.
Jack Miller (Pramac Ducati) 4 engines used, 0 withdrawn.
Francesco Bagnaia (Pramac Ducati) 4 engines used, 0 withdrawn.
Karel Abraham (Avintia Ducati) 3 engines used, 0 withdrawn.
Tito Rabat (Avintia Ducati) 4 engines used, 1 withdrawn.*
Yamaha:
Maverick Vinales (Monster Yamaha) 4 engines used, 0 withdrawn.
Valentino Rossi (Monster Yamaha) 4 engines used, 0 withdrawn.
Fabio Quartararo (Petronas Yamaha) 3 engines used, 0 withdrawn.**
Franco Morbidelli (Petronas Yamaha) 4 engines used, 0 withdrawn.
Honda:
Marc Marquez (Repsol Honda) 4 engines used, 0 withdrawn.
Jorge Lorenzo (Repsol Honda) 3 engines used, 1 withdrawn.*
Takaaki Nakagami (LCR Honda) 4 engines used, 1 withdrawn.*
Cal Crutchlow (LCR Honda) 4 engines used, 0 withdrawn.
Suzuki:
Joan Mir (Suzuki Ecstar) 4 engines used, 0 withdrawn.
Alex Rins (Suzuki Ecstar) 4 engines used, 0 withdrawn.
Manufacturers with technical concessions (KTM and Aprilia) are allowed nine engine changes per rider and are also able to modify their engine design during the season:
KTM:
Johann Zarco (Red Bull KTM) 4 engines used, 0 withdrawn.
Pol Espargaro (Red Bull KTM) 5 engines used, 0 withdrawn.
Hafizh Syahrin (Tech3 KTM) 5 engines used, 1 withdrawn.*
Miguel Oliveira (Tech3 KTM) 5 engines used, 0 withdrawn.
Aprilia:
Andrea Iannone (Aprilia Gresini) 4 engines used, 0 withdrawn.
Aleix Espargaro (Aprilia Gresini) 4 engines used, 1 withdrawn.*
* A 'withdrawn' engine means it is no longer available, usually because it has either reached the end of its lifespan or suffered some kind of damage.
**Quartararo's lower-spec M1 package is thought to mean he has only 5 engine changes planned for the season, instead of the full 7 allowed, resulting in a lower rpm limit to extend engine life.
