At the time, the FIM–IRTA war was raging on, and the Belgian Grand Prix became a casualty of this.

Bernie Ecclestone decided to double the ticket prices for the 1989 Belgian Grand Prix compared to the 1989 Dutch TT which was held a week earlier.

This drop in spectators, in combination with the race being held on a Saturday rather than a Sunday (which was similar to the Dutch TT at the time), caused the Belgian GP to be scrapped from the 1991 season onwards.

[2][3] Improvements to the circuit to make it suitable for motorcycle racing were made in autumn 2021 in time for the 2022 endurance season, and the Spa 24 Hours motorcycle race debuted at Spa in June 2022.

[4] A pink background indicates an event that was not part of the Grand Prix motorcycle racing championship.