2018 AMA National Speedway Championship
The 2018 AMA National Speedway Championship Series was staged over four rounds, held at Prairie City (April 28), Ventura (June 23), Santa Maria (July 28) and Industry (August 11). It was won by Billy Janniro, who beat Luke Becker and Austin Novratil. It was the ninth title of Janniro's career, taking him clear of Greg Hancock on the all-time list, and his sixth in-a-row.
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