No female Marine has yet to successfully navigate the elite Marine Raider assessment, selection and Individual Training Course, or ITC, to earn the coveted 0372 Critical Skills Operator job field.

But one female Marine has moved the baton a little further.

Last month, Sgt. Bailey Weis, an aviation maintenance controller, became the first female Marine to complete the second phase of Marine Corps Forces Special Operations Command’s Assessment and Selection course, Military.com reported.

Four women and five attempts total have been made by female Marines at the MARSOC selection, Maj. Nick Mannweiler, a spokesman with MARSOC, told Marine Corps Times. Only Weis has made it through phase two.

She ultimately was not selected to move onto the next phase of ITC, a nearly 9-month training evolution where Raiders learn and hone their skills to become special operators, Military.com reported.

The Raider’s assessment and selection is divided into two phases. The first highly competitive phase is nearly three weeks long and includes ruck runs, a swimming assessment and classroom instruction.

The second phase helps the Corps identify candidates who share traits with its elite special operators and who would be successful in the job field.

Since being passed over in selection, Weis told Military.com that she is leaving the Corps, with plans to begin a master’s degree in international relations and earn a commission in the North Carolina National Guard.