If ranking advanced and prelim, it is not the same rank list. You create a supplemental rank list for your prelim spots. So they are independent and in some ways mutually exclusive of each other. As it is on the programs side as well. Meaning: Your chance of matching to advanced does not rely on the fact that you matched prelim, since both match algorithms essentially run at the same time.An MS4 I know is applying to both rads and peds residencies. Because of rads, he is also applying to prelim IM and prelim peds programs. He is concerned he might not match a prelim program. Let's say he ranks 10 rads residencies with associated prelim programs as his top ten choices and below that 5 peds programs. If he matched one or more rads residencies but no prelim programs and matched one or more peds programs, would the match algorithm match him to rads and let him SOAP for a prelim year or would it match him with a peds program? In other words, would the algorithm consider him unmatched for rads because he did not match a preliminary year and therefore match him with a lower ranked peds program, or would it recognize his rank preference for a rads residency over a peds residency, match him to the rads residency and let him SOAP for his prelim year? Thank you.