May 15, 2015
The ASCS Red River Region travels to Lubbock (Texas) Speedway on May 15, 2015.
May 16, 2015
The Bumper to Bumper IRA Outlaw Sprint Series heads to Wilmot (Wis.) Raceway on May 16, 2015.
The POWRi Lucas Oil National Midget Series visits Macon (Ill.) Speedway on May 16, 2015.
The ASCS Red River Region visits Lawton (Okla.) Speedway on May 16, 2015.
The ASCS Southwest Region travels to Arizona Speedway in Queen Creek, Ariz., on May 16, 2015.
The King of Indiana Sprint Series heads to Lawrenceburg (Ind.) Speedway on May 16, 2015.
May 19, 2015 – May 20, 2015
The second running of the SPEED SPORT Challenge for outlaw karts is slated for May 19-20, 2015 at Millbridge Speedway in Salisbury, N.C.
May 22, 2015
The National Sprint League visits Jackson Speedway in Jackson, Minn. on May 22, 2015.
The University of Northwestern Ohio All Star Circuit of Champions visit Plymouth Speedway in Plymouth, Ind. on May 22, 2015.
The Midwest Sprint Car Series and King of Indiana Sprint Series travel to Bloomington (Ind.) Speedway on May 22, 2015.