Gelaran MotoGP Catalunya 2020 akan melangsungkan sesi warm-up pada Minggu (27/9/2020) siang hari ini, sebelum dilanjukan sesi balapan pada sore harinya.
Untuk kelas MotoGP, sesi balapan MotoGP Catalunya 2020 akan dimulai pukul 20.00 WIB.
Berikut starting grid MotoGP Catalunya 2020 untuk kelas utama.
| POS | RIDER | NEGARA | TIM |
| 1 | Franco Morbidelli | ITA | Petronas Yamaha (YZR-M1) |
| 2 | Fabio Quartararo | FRA | Petronas Yamaha (YZR-M1) |
| 3 | Valentino Rossi | ITA | Monster Yamaha (YZR-M1) |
| 4 | Jack Miller | AUS | Pramac Ducati (GP20) |
| 5 | Maverick Viñales | SPA | Monster Yamaha (YZR-M1) |
| 6 | Johann Zarco | FRA | Reale Avintia (GP19) |
| 7 | Pol Espargaro | SPA | Red Bull KTM (RC16) |
| 8 | Joan Mir | SPA | Suzuki Ecstar (GSX-RR) |
| 9 | Danilo Petrucci | ITA | Ducati Team (GP20) |
| 10 | Brad Binder | RSA | Red Bull KTM (RC16) |
| 11 | Takaaki Nakagami | JPN | LCR Honda (RC213V) |
| 12 | Miguel Oliveira | POR | Red Bull KTM Tech3 (RC16) |
| 13 | Alex Rins | SPA | Suzuki Ecstar (GSX-RR) |
| 14 | Francesco Bagnaia | ITA | Pramac Ducati (GP20) |
| 15 | Aleix Espargaro | SPA | Aprilia Gresini (RS-GP) |
| 16 | Cal Crutchlow | GBR | LCR Honda (RC213V) |
| 17 | Andrea Dovizioso | ITA | Ducati Team (GP20) |
| 18 | Alex Marquez | SPA | Repsol Honda (RC213V) |
| 19 | Iker Lecuona | SPA | Red Bull KTM Tech3 (RC16) |
| 20 | Stefan Bradl | GER | Repsol Honda (RC213V) |
| 21 | Bradley Smith | GBR | Aprilia Gresini (RS-GP) |
| 22 | Tito Rabat | SPA | Reale Avintia (GP19) |
(*)