Humboldt Speedway 2016 Schedule of Dirt Track Racing Events Announced Humbolt Speedway 2016 schedule of dirt racing events has been released. Humboldt Speedway is a 3/8 mile high banked dirt track located in Humboldt, Kansas. Humboldt Speedway races regularly on Friday nights. The track Regular Weekly Classes are USRA Modifieds, USRA B-Mods, Stock Cars, Pure […]
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