1999 Rose City Grand Prix

The 1999 Rose City Grand Prix was the fifth round of the 1999 American Le Mans Series season. It took place at Portland International Raceway, Oregon, on August 1, 1999.

Race results
Class winners in bold.

† - #18 Manthey Racing was found to be in violation of PSCR regulations in post-race inspection, the car being below the minimum legal ride height. Manthey Racing and their drivers were penalized by not winning championship points in this round.

Statistics

 * Pole position - #42 BMW Motorsport (J.J. Lehto) - 1:04.387
 * Fastest lap - #42 BMW Motorsport (J.J. Lehto) - 1:05.451
 * Distance - 428.613 km
 * Average speed - 155.033 km/h