The 2003 Rio de Janeiro motorcycle Grand Prix was the twelfth round of the 2003 MotoGP Championship. It took place on the weekend of 18–20 September 2003 at Autódromo Internacional Nelson Piquet.

The 125cc race marked the first Grand Prix motorcycle racing victory for a young Jorge Lorenzo.

MotoGP classification Pos. No. Rider Team Manufacturer Laps Time/Retired Grid Points 1 46 Valentino Rossi Repsol Honda Honda 24 44:36.633 1 25 2 15 Sete Gibernau Telefónica Movistar Honda Honda 24 +3.109 3 20 3 6 Makoto Tamada Pramac Honda Honda 24 +7.298 9 16 4 3 Max Biaggi Camel Pramac Pons Honda 24 +9.235 4 13 5 69 Nicky Hayden Repsol Honda Honda 24 +11.165 7 11 6 65 Loris Capirossi Ducati Marlboro Team Ducati 24 +14.826 2 10 7 11 Tohru Ukawa Camel Pramac Pons Honda 24 +17.361 8 9 8 56 Shinya Nakano d'Antín Yamaha Team Yamaha 24 +21.239 6 8 9 7 Carlos Checa Fortuna Yamaha Team Yamaha 24 +21.522 10 7 10 12 Troy Bayliss Ducati Marlboro Team Ducati 24 +22.971 5 6 11 33 Marco Melandri Fortuna Yamaha Team Yamaha 24 +32.910 16 5 12 4 Alex Barros Gauloises Yamaha Team Yamaha 24 +40.136 11 4 13 45 Colin Edwards Alice Aprilia Racing Aprilia 24 +54.099 12 3 14 41 Noriyuki Haga Alice Aprilia Racing Aprilia 24 +57.234 19 2 15 23 Ryuichi Kiyonari Telefónica Movistar Honda Honda 24 +57.678 15 1 16 99 Jeremy McWilliams Proton Team KR Proton KR 24 +1:06.069 20 17 10 Kenny Roberts Jr. Suzuki Grand Prix Team Suzuki 24 +1:09.444 18 18 88 Andrew Pitt Kawasaki Racing Team Kawasaki 24 +1:22.463 21 19 52 David de Gea WCM Harris WCM 23 +1 lap 22 Ret 8 Garry McCoy Kawasaki Racing Team Kawasaki 14 Retirement 13 Ret 9 Nobuatsu Aoki Proton Team KR Proton KR 11 Retirement 17 Ret 35 Chris Burns WCM Harris WCM 8 Retirement 23 Ret 19 Olivier Jacque Gauloises Yamaha Team Yamaha 7 Retirement 14 DNS 21 John Hopkins Suzuki Grand Prix Team Suzuki Did not start Sources:

250 cc classification Pos. No. Rider Manufacturer Laps Time/Retired Grid Points 1 54 Manuel Poggiali Aprilia 22 42:09.055 2 25 2 3 Roberto Rolfo Honda 22 +12.901 3 20 3 7 Randy de Puniet Aprilia 22 +12.965 4 16 4 50 Sylvain Guintoli Aprilia 22 +25.317 7 13 5 8 Naoki Matsudo Yamaha 22 +47.468 9 11 6 33 Héctor Faubel Aprilia 22 +55.694 10 10 7 11 Joan Olivé Aprilia 22 +58.264 14 9 8 14 Anthony West Aprilia 22 +58.339 16 8 9 57 Chaz Davies Aprilia 22 +1:00.193 15 7 10 34 Eric Bataille Honda 22 +1:02.606 19 6 11 6 Alex Debón Honda 22 +1:03.500 13 5 12 36 Erwan Nigon Aprilia 22 +1:09.904 11 4 13 16 Johan Stigefelt Aprilia 22 +1:14.199 17 3 14 28 Dirk Heidolf Aprilia 22 +1:14.370 20 2 15 13 Jaroslav Huleš Honda 22 +1:16.913 22 1 16 15 Christian Gemmel Honda 22 +1:17.037 23 17 52 Lukáš Pešek Yamaha 22 +1:19.838 21 18 24 Toni Elías Aprilia 22 +1:27.198 1 19 18 Henk vd Lagemaat Honda 21 +1 lap 24 Ret 26 Alex Baldolini Aprilia 11 Retirement 18 Ret 9 Hugo Marchand Aprilia 4 Retirement 12 Ret 10 Fonsi Nieto Aprilia 3 Retirement 5 Ret 5 Sebastián Porto Honda 2 Accident 6 Ret 21 Franco Battaini Aprilia 2 Accident 8 DNS 98 Katja Poensgen Honda Did not start Source:

125 cc classification Pos. No. Rider Manufacturer Laps Time/Retired Grid Points 1 48 Jorge Lorenzo Derbi 21 41:51.624 5 25 2 27 Casey Stoner Aprilia 21 +0.232 9 20 3 15 Alex de Angelis Aprilia 21 +0.372 2 16 4 3 Daniel Pedrosa Honda 21 +0.589 1 13 5 22 Pablo Nieto Aprilia 21 +0.771 14 11 6 34 Andrea Dovizioso Honda 21 +0.899 3 10 7 7 Stefano Perugini Aprilia 21 +1.240 6 9 8 79 Gábor Talmácsi Aprilia 21 +3.835 4 8 9 80 Héctor Barberá Aprilia 21 +4.117 7 7 10 17 Steve Jenkner Aprilia 21 +15.268 8 6 11 58 Marco Simoncelli Aprilia 21 +19.087 16 5 12 23 Gino Borsoi Aprilia 21 +19.445 10 4 13 1 Arnaud Vincent Aprilia 21 +19.584 11 3 14 6 Mirko Giansanti Aprilia 21 +19.673 15 2 15 12 Thomas Lüthi Honda 21 +20.466 12 1 16 19 Álvaro Bautista Aprilia 21 +27.902 20 17 10 Roberto Locatelli KTM 21 +27.992 21 18 4 Lucio Cecchinello Aprilia 21 +32.727 13 19 36 Mika Kallio KTM 21 +36.138 23 20 33 Stefano Bianco Gilera 21 +40.544 26 21 41 Youichi Ui Gilera 21 +41.610 22 22 24 Simone Corsi Honda 21 +49.980 19 23 88 Robbin Harms Aprilia 21 +50.136 30 24 32 Fabrizio Lai Malaguti 21 +50.179 18 25 31 Julián Simón Malaguti 21 +55.624 24 26 42 Gioele Pellino Aprilia 21 +1:00.747 31 27 28 Michele Danese Honda 21 +1:52.184 32 Ret 50 Andrea Ballerini Honda 16 Accident 28 Ret 63 Mike Di Meglio Honda 15 Retirement 29 Ret 8 Masao Azuma Honda 10 Retirement 17 Ret 26 Emilio Alzamora Derbi 6 Retirement 25 Ret 11 Max Sabbatani Aprilia 3 Retirement 33 Ret 25 Imre Tóth Honda 1 Retirement 27 Source:

Championship standings after the race (MotoGP)

Below are the standings for the top five riders and constructors after round twelve has concluded.

Riders' Championship standings Rider Points 1 Valentino Rossi 262 2 Sete Gibernau 211 3 Max Biaggi 174 4 Loris Capirossi 123 5 Troy Bayliss 112

Constructors' Championship standings Constructor Points 1 Honda 295 2 Ducati 171 3 Yamaha 132 4 Aprilia 63 5 / Proton KR 27

Note: Only the top five positions are included for both sets of standings.

References