The 1999 Rio de Janeiro motorcycle Grand Prix was the fifteenth round of the

1999 Grand Prix motorcycle racing season The 1999 Grand Prix motorcycle racing season was the 51st F.I.M. Road Racing World Championship season. Season summary The dominant reign of Honda's Mick Doohan came to an end with serious injuries suffered in practice for the Spanish Grand Pr ...

. It took place on 24 October 1999 at the

Autódromo Internacional Nelson Piquet The Autódromo Internacional Nelson Piquet (Nelson Piquet International Racetrack), also known as Jacarepaguá after Jacarepaguá, the neighbourhood in which it was located, and also as the Autódromo Riocentro, was a motorsport circuit in Rio d ...

. This was the last race without a current or former premier class champion on the grid until the 2020 Aragon Grand Prix. Valentino Rossi won the 250cc race and the title at this event his 2nd title in his young career

500 cc classification

250 cc classification

125 cc classification

Championship standings after the race (500cc)

Below are the standings for the top five riders and constructors after round fifteen has concluded. ;Riders' Championship standings ;Constructors' Championship standings * Note: Only the top five positions are included for both sets of standings.

References

{{Motorcycle Grands Prix 1990–1999 Rio de Janeiro motorcycle Grand Prix

Rio de Janeiro Rio de Janeiro, or simply Rio, is the capital of the Rio de Janeiro (state), state of Rio de Janeiro. It is the List of cities in Brazil by population, second-most-populous city in Brazil (after São Paulo) and the Largest cities in the America ...

Rio de Janeiro Grand Prix