This turns out to be a VERY interesting question.
You CANNOT participate in the match if you will graduate after July 1st. Most medical schools graduate in May or June, and usually most students can finish their requirements long before this, so it's uncommon for graduation to be delayed. Still, it happens.
Now for the interesting part:
1. You cannot participate in the Match if you graduate after July 1st.
2. You are only considered a Senior Medical Student if you graduate after Sept 1st.
So, if you graduate after Sept 1st you enter the match the following year. But, if you graduate from July 1st through Aug 31st, you don't have to participate in either match.
Seems like your screwed, doesn't it?
Here's the trick: You are not considered a senior medical student for the match. You are exempt from the match, and therefore you can sign outside the match.
So, here's what you do:
- You register and apply to programs with ERAS. Nothing prevents you from doing this.
- You mention in your personal statement that because of your graduation from July 1st - Aug 31st, you cannot match but you can sign outside the match. Obviously doing so means that you will start your internship 1-2 months late, but given the advance notice many programs will not care.
- Will this help or hurt you? Can't tell. But you may be able to get a spot outside the match, and have everything signed long before match day.
- If you can't find an acceptable slot this way, you get a chance to participate in the scramble. It's always possible that there will be some slot that you are very interested in that's open.
- In order to get the scramble list, I believe you must register with the NRMP. You can wait to register until the ROL deadline approaches -- you will know way before then whether you have a spot or not.
- If you can't find an acceptable slot this way, you can always enroll in the match the next year. You would then need to find a 10 month filler job, usually research or something like that.
If you are interested in the most competitive residencies, this will likely be a problem. Then again, whatever caused you to be off cycle by a few months may make these programs impossible for you anyway.