125cc Classification
| Pos | Rider | Manufacturer | Time/Retired | Points |
|---|---|---|---|---|
| 1 | Arnaud Vincent | Aprilia | 41:47.749 | 25 |
| 2 | Emilio Alzamora | Honda | +0.011 | 20 |
| 3 | Marco Melandri | Honda | +0.340 | 16 |
| 4 | Noboru Ueda | Honda | +0.547 | 13 |
| 5 | Lucio Cecchinello | Honda | +1.262 | 11 |
| 6 | Roberto Locatelli | Aprilia | +1.625 | 10 |
| 7 | Kazuto Sakata | Honda | +2.097 | 9 |
| 8 | Simone Sanna | Aprilia | +20.426 | 8 |
| 9 | Randy de Puniet | Aprilia | +20.595 | 7 |
| 10 | Gianluigi Scalvini | Aprilia | +20.859 | 6 |
| 11 | Alessandro Brannetti | Aprilia | +20.959 | 5 |
| 12 | Gino Borsoi | Aprilia | +22.768 | 4 |
| 13 | Frederic Petit | Aprilia | +22.812 | 3 |
| 14 | Mirko Giansanti | Aprilia | +29.025 | 2 |
| 15 | Ivan Goi | Honda | +42.860 | 1 |
| 16 | Reinhard Stolz | Honda | +49.937 | |
| 17 | Adrian Araujo | Honda | +1:00.610 | |
| 18 | Luis Costa | Honda | +1:32.793 | |
| Ret | Victor Carrasco | Honda | Retirement | |
| Ret | Steve Jenkner | Aprilia | Retirement | |
| Ret | Masao Azuma | Honda | Retirement | |
| Ret | Toni Elías | Honda | Retirement | |
| Ret | Angel Nieto Jr | Honda | Retirement | |
| Ret | Pablo Nieto | Derbi | Retirement | |
| Ret | Manuel Poggiali | Aprilia | Retirement | |
| Ret | Bernhard Absmeier | Aprilia | Retirement | |
| Ret | Emilio Delgado | Honda | Retirement | |
| Ret | Max Sabbatani | Honda | Retirement | |
| Ret | Youichi Ui | Derbi | Retirement | |
| Ret | Jeronimo Vidal | Aprilia | Retirement |
| Previous race: 1999 Italian Grand Prix |
FIM Grand Prix World Championship 1999 season |
Next race: 1999 Dutch TT |
| Previous race: 1998 Catalan Grand Prix |
Catalan Grand Prix | Next race: 2000 Catalan Grand Prix |
Read more about this topic: 1999 Catalan Motorcycle Grand Prix