# Gran Premio de Argentina de Motociclismo de 1998

El Gran Premio de la República Argentina de 1998 fue la decimocuarta y última prueba del Campeonato del Mundo de Motociclismo de 1998. Tuvo lugar en el fin de semana del 23 al 25 de octubre de 1998 en el Autódromo Oscar y Juan Gálvez, situado en la ciudad de Buenos Aires, Argentina. La carrera de 500cc fue ganada por Mick Doohan, seguido de Tadayuki Okada y Alex Barros. Valentino Rossi ganó la prueba de 250cc, por delante de Loris Capirossi y Olivier Jacque. La carrera de 125cc fue ganada por Tomomi Manako, Marco Melandri fue segundo y Lucio Cecchinello tercero.

## Resultados 500cc

| Pos. | N.º | Piloto | Constructor | Vueltas | Tiempo | Parrilla | Pts. |
| 1 | 1 | Mick Doohan | Honda | 27 | 47:07.332 | 1 | 25 |
| 2 | 2 | Tadayuki Okada | Honda | 27 | +4.762 | 2 | 20 |
| 3 | 9 | Alex Barros | Honda | 27 | +5.590 | 8 | 16 |
| 4 | 5 | Norifumi Abe | Yamaha | 27 | +27.685 | 17 | 13 |
| 5 | 6 | Max Biaggi | Honda | 27 | +30.254 | 14 | 11 |
| 6 | 55 | Régis Laconi | Yamaha | 27 | +30.441 | 5 | 10 |
| 7 | 12 | Jean-Michel Bayle | Yamaha | 27 | +30.647 | 6 | 9 |
| 8 | 8 | Carlos Checa | Honda | 27 | +30.944 | 3 | 8 |
| 9 | 15 | Sete Gibernau | Honda | 27 | +32.808 | 4 | 7 |
| 10 | 19 | John Kocinski | Honda | 27 | +41.714 | 10 | 6 |
| 11 | 10 | Kenny Roberts Jr | Modenas KR3 | 27 | +46.746 | 11 | 5 |
| 12 | 3 | Nobuatsu Aoki | Suzuki | 27 | +48.264 | 13 | 4 |
| 13 | 11 | Simon Crafar | Yamaha | 27 | +1:02.063 | 16 | 3 |
| 14 | 17 | Jurgen van den Goorbergh | Honda | 27 | +1:03.255 | 15 | 2 |
| 15 | 28 | Ralf Waldmann | Modenas KR3 | 27 | +1:06.271 | 12 | 1 |
| 16 | 22 | Sébastien Gimbert | Honda | 27 | +1:27.889 | 18 | |
| 17 | 23 | Matt Wait | Honda | 27 | +1:27.960 | 20 | |
| 18 | 14 | Juan Borja | Honda | 27 | +1:28.404 | 19 | |
| 19 | 42 | Craig Connell | Honda | 26 | +1 Vuelta | 21 | |
| 20 | 57 | Fabio Carpani | Honda | 26 | +1 Vuelta | 23 | |
| 21 | 71 | Juan Pablo Gianini | Honda | 26 | +1 Vuelta | 24 | |
| Ret | 4 | Àlex Crivillé | Honda | 17 | Accidente | 7 | |
| Ret | 20 | Luca Cadalora | MuZ Weber | 13 | | 9 | |
| DNS | 88 | Scott Smart | Honda | | | 22 | |
* Pole Position: Mick Doohan, 1:44.193
* Vuelta Rápida: Tadayuki Okada, 1:44.122

## Resultados 250cc

| Pos. | N.º | Piloto | Constructor | Vueltas | Tiempo | Parrilla | Pts. |
| 1 | 46 | Valentino Rossi | Aprilia | 25 | 44:26.581 | 3 | 25 |
| 2 | 65 | Loris Capirossi | Aprilia | 25 | +5.360 | 1 | 20 |
| 3 | 19 | Olivier Jacque | Honda | 25 | +27.096 | 2 | 16 |
| 4 | 5 | Tohru Ukawa | Honda | 25 | +27.451 | 6 | 13 |
| 5 | 44 | Roberto Rolfo | TSR-Honda | 25 | +30.820 | 16 | 11 |
| 6 | 9 | Jeremy McWilliams | TSR-Honda | 25 | +41.816 | 9 | 10 |
| 7 | 12 | Noriyasu Numata | Suzuki | 25 | +42.555 | 8 | 9 |
| 8 | 16 | Johan Stigefelt | Suzuki | 25 | +42.708 | 11 | 8 |
| 9 | 21 | Franco Battaini | Yamaha | 25 | +43.148 | 7 | 7 |
| 10 | 37 | Luca Boscoscuro | TSR-Honda | 25 | +52.505 | 15 | 6 |
| 11 | 7 | Takeshi Tsujimura | Yamaha | 25 | +54.131 | 12 | 5 |
| 12 | 14 | Davide Bulega | ERP-Honda | 25 | +1:07.509 | 19 | 4 |
| 13 | 45 | Diego Giugovaz | Aprilia | 25 | +1:12.506 | 18 | 3 |
| 14 | 18 | Osamu Miyazaki | Yamaha | 25 | +1:35.028 | 17 | 2 |
| 15 | 82 | Woolsey Coulter | Honda | 25 | +1:37.371 | 21 | 1 |
| 16 | 22 | Matthieu Lagrive | Honda | 25 | +1:42.817 | 23 | |
| 17 | 41 | Federico Gartner | Aprilia | 25 | +1:45.353 | 24 | |
| 18 | 97 | Diego Ruaben | Honda | 24 | +1 Vuelta | 25 | |
| 19 | 96 | Leandro Mulet | Yamaha | 24 | +1 Vuelta | 27 | |
| 20 | 98 | Gabriel Borgmann | Yamaha | 24 | +1 Vuelta | 28 | |
| Ret | 31 | Tetsuya Harada | Aprilia | 24 | Accidente | 4 | |
| Ret | 6 | Haruchika Aoki | Honda | 23 | | 13 | |
| Ret | 25 | Yasumasa Hatakeyama | Honda | 19 | Accidente | 22 | |
| Ret | 8 | Luis d'Antin | Yamaha | 18 | Accidente | 20 | |
| Ret | 27 | Sebastián Porto | Aprilia | 12 | | 5 | |
| Ret | 17 | José Luis Cardoso | Yamaha | 11 | | 10 | |
| Ret | 4 | Stefano Perugini | Honda | 10 | | 14 | |
| Ret | 95 | Matias Rios | Yamaha | 1 | | 26 | |
* Pole Position: Loris Capirossi, 1:45.568
* Vuelta Rápida: Valentino Rossi, 1:45.473

## Resultados 125cc

| Pos. | N.º | Piloto | Constructor | Vueltas | Tiempo | Parrilla | Pts. |
| 1 | 3 | Tomomi Manako | Honda | 23 | 42:43.976 | 8 | 25 |
| 2 | 13 | Marco Melandri | Honda | 23 | +0.566 | 2 | 20 |
| 3 | 10 | Lucio Cecchinello | Honda | 23 | +1.137 | 16 | 16 |
| 4 | 20 | Masao Azuma | Honda | 23 | +1.191 | 10 | 13 |
| 5 | 4 | Kazuto Sakata | Aprilia | 23 | +16.111 | 3 | 11 |
| 6 | 32 | Mirko Giansanti | Honda | 23 | +16.314 | 4 | 10 |
| 7 | 21 | Arnaud Vincent | Aprilia | 23 | +21.921 | 7 | 9 |
| 8 | 5 | Masaki Tokudome | Aprilia | 23 | +22.833 | 13 | 8 |
| 9 | 2 | Noboru Ueda | Honda | 23 | +23.597 | 11 | 7 |
| 10 | 8 | Gianluigi Scalvini | Honda | 23 | +23.922 | 15 | 6 |
| 11 | 26 | Ivan Goi | Aprilia | 23 | +23.958 | 14 | 5 |
| 12 | 23 | Gino Borsoi | Aprilia | 23 | +27.543 | 12 | 4 |
| 13 | 9 | Frédéric Petit | Honda | 23 | +27.720 | 6 | 3 |
| 14 | 62 | Yoshiaki Katoh | Yamaha | 23 | +27.822 | 22 | 2 |
| 15 | 41 | Youichi Ui | Yamaha | 23 | +42.461 | 5 | 1 |
| 16 | 17 | Enrique Maturana | Yamaha | 23 | +52.756 | 21 | |
| 17 | 22 | Steve Jenkner | Aprilia | 23 | +54.889 | 20 | |
| 18 | 39 | Jaroslav Huleš | Honda | 23 | +55.022 | 19 | |
| 19 | 94 | Cristiano Irias-Vieira | Honda | 22 | +1 Vuelta | 26 | |
| 20 | 97 | Silvio Zequim | Honda | 22 | +1 Vuelta | 27 | |
| Ret | 15 | Roberto Locatelli | Honda | 10 | Accidente | 1 | |
| Ret | 16 | Christian Manna | Yamaha | 7 | | 24 | |
| Ret | 65 | Andrea Iommi | Honda | 6 | Accidente | 18 | |
| Ret | 29 | Ángel Nieto Jr | Aprilia | 5 | Accidente | 23 | |
| Ret | 14 | Federico Cerroni | Aprilia | 5 | | 25 | |
| Ret | 59 | Jerónimo Vidal | Aprilia | 2 | | 17 | |
| DNS | 7 | Emilio Alzamora | Aprilia | | | 9 | |
| DNQ | 95 | Cesar Barros | Honda | | | | |
* Pole Position: Roberto Locatelli, 1:50.550
* Vuelta Rápida: Masao Azuma, 1:49.917