| Grand Prix: | Brazilian |
| Flag: | Brazil |
| Location: | Autódromo Internacional Ayrton Senna |
| Course Mi: | 2.383 |
| Course Km: | 3.835 |
| Race No: | 15 |
| Season No: | 15 |
| Date: | 17 September |
| Year: | 1988 |
| Pole Rider 500: | Wayne Gardner |
| Pole Rider 500 Country: | AUS |
| Pole Rider 500 Bike: | Honda |
| Pole Time 500: | 1:26.930 |
| Fast Rider 500: | Eddie Lawson |
| Fast Rider 500 Country: | USA |
| Fast Rider 500 Bike: | Yamaha |
| Fast Time 500: | 1:27.810 |
| First Rider 500: | Eddie Lawson |
| First Rider 500 Country: | USA |
| First Rider 500 Bike: | Yamaha |
| Second Rider 500: | Wayne Gardner |
| Second Rider 500 Country: | AUS |
| Second Rider 500 Bike: | Honda |
| Third Rider 500: | Kevin Schwantz |
| Third Rider 500 Country: | USA |
| Third Rider 500 Bike: | Suzuki |
| Pole Rider 250: | Dominique Sarron |
| Pole Rider 250 Country: | FRA |
| Pole Rider 250 Bike: | Honda |
| Pole Time 250: | 1:29.200 |
| Fast Rider 250: | Luca Cadalora |
| Fast Rider 250 Country: | ITA |
| Fast Rider 250 Bike: | Yamaha |
| Fast Time 250: | 1:30.090 |
| First Rider 250: | Dominique Sarron |
| First Rider 250 Country: | FRA |
| First Rider 250 Bike: | Honda |
| Second Rider 250: | Carlos Lavado |
| Second Rider 250 Country: | VEN |
| Second Rider 250 Country Flag Suffix: | 1930 |
| Second Rider 250 Bike: | Yamaha |
| Third Rider 250: | Sito Pons |
| Third Rider 250 Country: | ESP |
| Third Rider 250 Bike: | Honda |
The 1988 Brazilian motorcycle Grand Prix was the last round of the 1988 Grand Prix motorcycle racing season. It took place on the weekend of 15–17 September 1988 at the Goiânia circuit.[1]
Wayne Gardner was on pole, but Eddie Lawson got into the lead at the start, ahead of Wayne Rainey and Kevin Schwantz. Back in 6th place, Gardner was almost cut off by Pierfrancesco Chili, who tried a block pass on him; Gardner shook a fist.
Schwantz got around Lawson for 1st, but Lawson looked like he's not going to let it go. Gardner caught up to make it a trio, while Lawson retook the lead. Randy Mamola was hot-dogging, deliberately sliding the rear.Schwantz and Gardner went at it for 2nd place. Mamola almost highsided trying to impress the crowd, a bit later on a left-hander he looked over his shoulder and immediately slid the bike into a highside. Schwantz will do something similar next year at Phillip Island. Rainey retired with a punctured tire.
| Pos. | Rider | Team | Manufacturer | Time/Retired | Points | |||
|---|---|---|---|---|---|---|---|---|
| 1 |  Eddie Lawson | Marlboro Yamaha Team Agostini | Yamaha | 47:22.550 | 20 | |||
| 2 |  Wayne Gardner | Rothmans Honda Team | Honda | +13.360 | 17 | |||
| 3 | Kevin Schwantz | Suzuki Pepsi Cola | Suzuki | +21.350 | 15 | |||
| 4 |  Niall Mackenzie | Team HRC | Honda | +24.120 | 13 | |||
| 5 |  Christian Sarron | Sonauto Gauloises Blondes Yamaha Mobil 1 | Yamaha | +24.240 | 11 | |||
| 6 | Kevin Magee | Team Lucky Strike Roberts | Yamaha | +24.280 | 10 | |||
| 7 |  Pierfrancesco Chili | HB Honda Gallina Team | Honda | +1:13.100 | 9 | |||
| 8 | Rob McElnea | Suzuki Pepsi Cola | Suzuki | +1:14.950 | 8 | |||
| 9 |  Didier de Radiguès | Marlboro Yamaha Team Agostini | Yamaha | +1:23.300 | 7 | |||
| 10 | Patrick Igoa | Sonauto Gauloises Blondes Yamaha Mobil 1 | Yamaha | +1 Lap | 6 | |||
| 11 |  Fabio Barchitta | Racing Team Katayama | Honda | +1 Lap | 5 | |||
| 12 |  Francisco Gonzales | Honda | +1 Lap | 4 | ||||
| 13 | Donnie McLeod | Racing Team Katayama | Honda | +1 Lap | 3 | |||
| Ret | Wayne Rainey | Team Lucky Strike Roberts | Yamaha | Retirement | ||||
| Ret |  Marco Gentile | Fior Marlboro | Fior | Retirement | ||||
| Ret | Ron Haslam | Team ROC Elf Honda | Elf Honda | Retirement | ||||
| Ret | Bruno Kneubühler | Romer Racing Suisse | Honda | Retirement | ||||
| Ret | Alessandro Valesi | Team Iberia | Honda | Retirement | ||||
| Ret | Randy Mamola | Cagiva Corse | Cagiva | Retirement | ||||
| Ret | Roger Burnett | Racing Team Katayama | Honda | Retirement | ||||
| Sources: [2] [3] | ||||||||