As far as the question goes a few posts above I believe from what I have read and the guidelines according to nrmp that if you get a "Congratulations, you have matched" then there is nothing to worry about. If you ranked a prelim/trans on the end of your primary list then it will give you the message "Congratulation, you have matched to a one year position" Do you guys come up with the same conclusion from this info below from the NRMP Faq:
1. Congratulations, you have matched!
This message will be displayed for any applicant who is "fully" matched, including
Applicants who listed and matched to a categorical program.
Applicants who listed and matched to preliminary and advanced programs.
Other conditions also apply. Applicants who listed only advanced programs on their certified rank order lists and did not list any preliminary positions on a supplemental rank order list will receive this message. Similarly, applicants who included only preliminary programs on their certified rank order lists will receive this statement. The matching algorithm considers an applicant "matched" if he/she lists only one program type on his/her certified rank order list. Applicants who receive this message will not have access to the Dynamic List of Unfilled Programs that is posted on Tuesday of Match Week.
3. Congratulations, you have matched to a one year position!
This message will be displayed for any applicant who matched to a preliminary position but did not match to an advanced position listed on the primary rank order list. Applicants who receive this message will have access to the Dynamic List of Unfilled Programs and are eligible to participate in the post-match Scramble for unfilled positions to obtain an advanced position; however, applicants may not use the Scramble to obtain a categorical position or a different preliminary position.