Prelim is not for all IMGs. Only for people with work visas, Greencards, or citizens. Prelim almost guarantees a residency slot. Same as transitional year. Prelim /transitional year gets you into the system because it removes the old YOG disadvantage. Congrats to him.
Thanks for the helpful video. I am 60 year IMG and my family moving to USA. I did USMLE 1,2,3 15 years ago. Can I have a chance to be matched. Thank you.