Match Day for the first iteration of the 2025 R-1 Main Residency Match was March 4, 2025. At the conclusion of the first iteration, 367 positions remain unfilled and will be automatically moved into the second iteration of the match.
First iteration Match Day marks the mid-point of the R-1 Match. Unmatched first iteration applicants receive an email with information about how to proceed in the second iteration, and all available positions move into the second iteration of the match.
Typically, the majority of first iteration unfilled positions are filled in the second iteration.
| First iteration unfilled positions | Second iteration unfilled positions | |
| 2022 R-1 Match | 311 (9.1% of total) | 115 (3.4% of total) |
| 2023 R-1 Match | 351 (9.9%) | 110 (3.1%) |
| 2024 R-1 Match | 362 (9.8%) | 87 (2.3%) |
| 2025 R-1 Match | 367 (9.3%) | Available April 17, 2025 |
High level match data—including second iteration unfilled positions—will be released once the 2025 R-1 Match has concluded with second iteration Match Day on April 17, 2025. More detailed data and analysis will be presented at the annual CaRMS Forum, to be scheduled in late April.
