The next five MotoGP seasons will reach their climax in Valencia, continuing a tradition which began in 2002.
A new agreement will see Valencia host the finale of the MotoGP season for the next five years.
Every MotoGP campaign since 2002 has reached its climax at the Circuit Ricardo Tormo, with the existing contract set to expire this year.
However, a renewal of the deal will ensure Valencia brings the curtain down each term until 2021.
This weekend's grand prix will take in Aragon, with further races in Japan, Australia and Malaysia before the riders return to Spain to bring the season to a close in November.