The 1998 Speedway Grand Prix Qualification or GP Challenge was a series of motorcycle speedway meetings used to determine the 16 riders that qualified for the 1998 Speedway Grand Prix[1] to join the other 8 riders that finished in the leading positions from the 1997 Speedway Grand Prix.
[2] There was a late change to the qualifying when the Grand Prix increased to 24 permanent riders.
Therefore 4 riders would qualify straight from the Intercontinental and Continental finals and 9 riders would qualify through the GP Challenge (originally just 4).
[3] The final 3 GP places would go to wildcards.
Piotr Protasiewicz won the GP Challenge.