250cc Classification
| Pos | Rider | Manufacturer | Time/Retired | Points |
|---|---|---|---|---|
| 1 | Olivier Jacque | Yamaha | 44:34.817 | 25 |
| 2 | Tohru Ukawa | Honda | +9.236 | 20 |
| 3 | Valentino Rossi | Aprilia | +17.573 | 16 |
| 4 | Sebastian Porto | Yamaha | +21.735 | 13 |
| 5 | Shinya Nakano | Yamaha | +26.791 | 11 |
| 6 | Stefano Perugini | Honda | +33.000 | 10 |
| 7 | Roberto Rolfo | Aprilia | +33.673 | 9 |
| 8 | Anthony West | TSR-Honda | +40.963 | 8 |
| 9 | Tomomi Manako | Yamaha | +44.523 | 7 |
| 10 | Alex Hofmann | TSR-Honda | +50.445 | 6 |
| 11 | Ralf Waldmann | Aprilia | +52.881 | 5 |
| 12 | Jason Vincent | Honda | +1:10.078 | 4 |
| 13 | Scott Smart | Aprilia | +1:10.268 | 3 |
| 14 | Fonsi Nieto | Yamaha | +1:10.481 | 2 |
| 15 | Masaki Tokudome | TSR-Honda | +1:11.156 | 1 |
| 16 | Jarno Janssen | TSR-Honda | +1:13.021 | |
| 17 | Maurice Bolwerk | TSR-Honda | +1:13.279 | |
| 18 | Johann Stigefelt | Yamaha | +1:19.235 | |
| 19 | Leandro Mulet | Honda | +1 Lap | |
| 20 | Leandro Giugga | Yamaha | +1 Lap | |
| Ret | Diego Pierluiggi | Honda | Retirement | |
| Ret | Gabriel Borgmann | Yamaha | Retirement | |
| Ret | Alfredo Rios | Aprilia | Retirement | |
| Ret | Julien Allemand | TSR-Honda | Retirement | |
| Ret | David Garcia | Yamaha | Retirement | |
| Ret | Markus Barth | Yamaha | Retirement | |
| Ret | Franco Battaini | Aprilia | Retirement | |
| Ret | Luca Boscoscuro | TSR-Honda | Retirement | |
| Ret | Jeremy McWilliams | Aprilia | Retirement | |
| Ret | Loris Capirossi | Honda | Retirement |
Read more about this topic: 1999 Argentine Motorcycle Grand Prix