Tier 1 — High Probability Colleges for Rank 2,500–5,500 (OS)
Colleges where the final closing rank is at least 400+ above the band midpoint (4,000) under OS/AI quota
No colleges in the 2,500–5,500 band have a historical closing rank that makes them definitively safe for the full range under OS/AI quota. Candidates at the lower end of this band may find borderline programs accessible with a comfortable margin.