The World 100 is a 100-lap dirt late model racing event held every year since 1971 at the 1/2 mile Eldora Speedway in Rossburg, Ohio.

it is considered by many race fans to be the most prestigious dirt late model event in the United States.

How they finish in their heat races immediately determines where the predetermined number of qualifying drivers will start.

In 2018, both Friday and Saturday racing were rained out and moved from September to Columbus Day weekend in October.

The results from Thursday were carried over to the rain date, and drivers ran Friday's schedule the morning of the World 100, essentially making the day a double-header.