Match Systems

Match systems provide the mechanism by which the residency match process occurs. These are national systems through which applicants secure residency positions.

After interview season concludes, applicants and residency programs submit rank order lists to these national match system organizations who run their respective matching algorithms to assign applicants and residency programs to one another.

Matching systems’ timeframes may be adjusted during Covid-19. Please check the websites of each system for updates.

There are five primary matching systems: four US matching systems and one Canadian matching system.

For questions on the technical logistics of match systems, please contact Sarah Wood, the UW administrator of the residency application systems.

ERAS NRMP San Francisco (Ophthalmology) Urology Military (MODS)

2022-23 Timeline Not Yet Released

Dates below are estimated and may not be accurate for every military branch. Check with your branch for specifics.
June 8, 2022
ERAS Season Begins
September 15, 2022
2023 Match Registration Opens
July 1, 2022
Applicant Registration Begins

Although registration is open until the rank list deadline, applicants are encouraged to register as early as possible to allow time to apply and for interviews.
June 23, 2022
Registration Opens

Students may begin working on their applications.
Estimated: July 1, 2022
Letter of Instructions Posted

MODS System Opens
June 15-17, 2022
UWSOM Students Receive ERAS Token

Register token to begin working on the application.
January 31, 2023, 8:59 PM PT
Applicant Standard Registration Deadline
July - September 2022
Altus Casper Test Dates

Thursday, July 21, 2022
Tuesday, August 6, 2022
Tuesday, August 30, 2022
Thursday, September 8, 2022 (if needed)
September 1, 2022
Signaling Opens for Applicants
July - October 2022
Interview Period
August 1, 2022
Supplemental ERAS Application Opens to Applicants
February 1, 2023
Ranking Opens
September 1, 2022
CAS Target Date

Applications are released to programs at 12 AM (midnight) PT.

Applicants may upload supplemental documents and additional applications as available.
This is NOT a deadline. Programs can accept applications after this date. It is the applicant's responsibility to contact training programs for individual deadline dates.
September 16, 2022
Applicants Signaling Deadline
Estimated: August 31, 2022
Deadline to Create & Submit a Residency Application

Modifications may be made to applications through October 15, 2022 (estimated date)
September 7, 2022, 6 AM PT
ERAS Opens for Application Submissions
March 1, 2023, 6 PM PT
Rank Order List Certification Deadline

Match withdrawal deadline
October 17, 2022
First Day Interviews Can be Extended
September 28, 2022
Programs Receive Signals
Estimated: October 15, 2022
Deadline to Submit Supporting Documents and Interviews

Deadline to Make Application Modifications
September 16, 2022, 2 PM PT
Supplemental ERAS Application Closes to Applicants
March 13, 2023
Match Week Begins

7 AM PT - SOAP Begins
October 31-December 23, 2022
Interview Period

All interviews are virtual.
October 21, 2022
All Programs Offer Interviews
Estimated: December 15, 2022
Match Results Released
September 28, 2022, 6 AM PT
MSPE & Applications Released to Residency Programs

Residency programs may begin reviewing applications, supplemental applications, and MSPEs.
March 16, 2023
SOAP Offer Rounds

6 AM PT - Round 1
9 AM PT - Round 2
12 PM PT - Round 3
3 PM PT - Round 4
January 3, 2023, 12 PM PT
Program Rank List Deadline
October 24, 2022
Applicants Accept or Reject Interview Offers

Students may release previously accepted interview slots in favor of any invitations offered to them off a waitlist.
May 31, 2023
ERAS 2023 Season Ends
March 17, 2023, 9 AM PT
Match Results Released
January 4 - January 18, 2023
Open House Tours (optional visits)
October 25, 2022
"Flush Day"
January 20, 2023, 12 PM PT
Applicant Rank List Submission Deadline
November 22, 2022
Preference List Submissions Begin
February 1, 2023, 5 AM PT
Match Results Released
December 29, 2022
Registration Deadline
February 1, 2023, 9 AM PT
Post-match Vacancies Announced
January 10, 2023
Preference List Submission Deadline & Interview Deadline
February 2, 2023
Match Results Released

NRMP (National Resident Matching Program)

  • Used By: All specialties except for ophthalmology and urology. Civilian only.
  • System Opens: Mid-September of 4th year
  • Ranking Deadline: Mid-Late February of 4th year
  • Match Results Released: Third Friday of March
  • Allows for Couples Matching: Yes
  • Match System only

Understand how the NRMP matching algorithm works – 5 min. video

SF Match (San Francisco Match)

  • Used By: Ophthalmology
  • System Opens: June prior to 4th year
  • Ranking Deadline: Early January
  • Match Results Released: Mid-January
  • Allows for Couples Matching: No
  • Combined Application & Match System

Urology Match

  • Used By: Urology
  • System Opens: June prior to 4th year
  • Ranking Deadline: Early January
  • Match Results Released: Mid to late January
  • Allows for Couples Matching: No
  • Match System Only

Military Match

  • Used By: All military branches
  • System Opens: Dates to be communicated by each branch
  • Ranking Deadline: Dates to be communicated by each branch
  • Match Results Released: Mid-December
  • Allows for Couples Matching: No
  • Combined Application & Match System

CaRMS (Canadian Residency Matching Service)

  • Used By: Canadian residency programs
  • System Opens: Varies by match iteration
  • Ranking Deadline: Varies by match iteration
  • Match Results Released: Twice per year – once in late winter and once in early spring
  • Allows for Couples Matching: Yes
  • Combined Application & Match System

flowchart explaining US based residency application systems