The Portuguese rider came from seventh on the grid to take the lead on the fifth of 20 laps, before going on to dominate for his fourth career MotoGP win.
The race was delayed by well over an hour from its original 3:00pm local start time due to heavy rain leaving the track in an unraceable condition.
Mercifully, the weather abated and the race could get underway at 4:15pm local time.
The race was also shortened to 20 laps from 27 earlier in the day owing to safety concerns with the asphalt in the extreme heat.
Absent from the grand prix was six-time world champion Marc Marquez, who suffered a concussion in a violent crash in morning warm-up.
Reigning world champion Fabio Quartararo was second on his Yamaha in his strongest wet weather display in MotoGP, while Pramac’s Johann Zarco was third ahead of the best of the factory team Ducatis of Jack Miller in fourth.
Suzuki duo Alex Rins and Joan Mir followed, with Yamaha’s Franco Morbidelli, KTM’s Brad Binder, Aprilia’s Aleix Espargaro and RNF Racing rookie Darryn Binder rounding out the top 10.
Francesco Bagnaia survived a scary moment into Turn 1 early on, but struggled hugely in the conditions and ended the race down in 15th having started sixth.
Championship leader Enea Bastianini recovered to 11th after a torrid start and holds a slender two-point lead over Brad Binder in the standings going to the next round in Argentina on 1-3 April.
2022 MotoGP Indonesian Grand Prix: Full race results
| Cla | Rider | Bike | Time | Gap |
|---|---|---|---|---|
| 1 |  Miguel Oliveira | KTM | - | |
| 2 |  Fabio Quartararo | Yamaha | 2.205 | 2.205 |
| 3 | Johann Zarco | Ducati | 3.158 | 3.158 |
| 4 |  Jack Miller | Ducati | 5.663 | 5.663 |
| 5 |  Alex Rins | Suzuki | 7.044 | 7.044 |
| 6 | Joan Mir | Suzuki | 7.832 | 7.832 |
| 7 |  Franco Morbidelli | Yamaha | 21.115 | 21.115 |
| 8 |  Brad Binder | KTM | 32.413 | 32.413 |
| 9 | Aleix Espargaro | Aprilia | 32.586 | 32.586 |
| 10 | Darryn Binder | Yamaha | 32.901 | 32.901 |
| 11 | Enea Bastianini | Ducati | 33.116 | 33.116 |
| 12 | Pol Espargaro | Honda | 33.599 | 33.599 |
| 13 | Alex Marquez | Honda | 33.735 | 33.735 |
| 14 | Luca Marini | Ducati | 34.991 | 34.991 |
| 15 | Francesco Bagnaia | Ducati | 35.763 | 35.763 |
| 16 | Maverick Viñales | Aprilia | 37.397 | 37.397 |
| 17 | Raúl Fernández | KTM | 41.975 | 41.975 |
| 18 | Fabio Di Giannantonio | Ducati | 47.915 | 47.915 |
| 19 |  Takaaki Nakagami | Honda | 49.471 | 49.471 |
| 20 | Marco Bezzecchi | Ducati | 49.473 | 49.473 |
| 21 | Remy Gardner | KTM | 55.964 | 55.964 |
| Jorge Martin | Ducati | |||
| Andrea Dovizioso | Yamaha | |||
| View full results | ||||
2022 MotoGP standings
Riders' championship
| Pos. | Rider | Points | |
| 1 | Enea Bastianini | Gresini Ducati | 30 |
| 2 | Brad Binder | KTM | 28 |
| 3 | Fabio Quartararo | Yamaha | 27 |
| 4 | Miguel Oliveira | KTM | 25 |
| 5 | Johann Zarco | Pramac Ducati | 24 |
| 6 | Pol Espargaró | Honda | 20 |
| 7 | Aleix Espargaró | Aprilia | 20 |
| 8 | Alex Rins | Suzuki | 20 |
| 9 | Joan Mir | Suzuki | 20 |
| 10 | F.Morbidelli | Yamaha | 14 |
| 11 | Jack Miller | Ducati | 13 |
| 12 | Marc Márquez | Honda | 11 |
| 13 | Darryn Binder | RNF Yamaha | 6 |
| 14 | Takaaki Nakagami | LCR Honda | 6 |
| 15 | Luca Marini | VR46 Ducati | 5 |
| 16 | Maverick Viñales | Aprilia | 4 |
| 17 | Álex Márquez | LCR Honda | 3 |
| 18 | Andrea Dovizioso | RNF Yamaha | 2 |
| 19 | Remy Gardner | Tech3 KTM | 1 |
| 20 | F.Bagnaia | Ducati | 1 |
| 21 | Raúl Fernández | Tech3 KTM | 0 |
| 22 | F.Di Giannantonio | Gresini Ducati | 0 |
| 23 | Marco Bezzecchi | VR46 Ducati | 0 |
| 24 | Jorge Martin | Pramac Ducati | 0 |
Manufacturers' championship
| Pos. | Manufacturer | Points |
| 1 | KTM | 45 |
| 2 | Ducati | 41 |
| 3 | Yamaha | 27 |
| 4 | Suzuki | 21 |
| 5 | Honda | 20 |
| 6 | Aprilia | 20 |
