The Sioux Chief PowerPEX 200 was an ARCA Menards Series race held annually at Memphis International Raceway in Millington, Tennessee.

It serves as the finale of the Sioux Chief Short Track Showdown, and was formerly sanctioned by the NASCAR K&N Pro Series East.

2017 was the first year that the NASCAR K&N Pro Series East raced at Memphis International Raceway.

After spending three years under the K&N East banner, the race was sanctioned by the ARCA Menards Series for the first time in 2020.

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