Depending on your finish on your qualifying night, you will be placed (depending on number of cars entered) anywhere from a K-Main to the A-Main on Saturday. The top 3 in each qualifying night's A-Main are locked into Saturday's A-Main. On Saturday they will run dual mains usually from around the letter K up thru letter B (that is 2 K's, 2 J's, 2 I's, 2 H's, etc.). The top X number of cars transfer from each Main to the back of the next corresponding Main.