Retention is one of the pillars of Army end strength. Determining retention potential of a wounded, ill, or injured Soldier in a timely and accurate manner can be difficult given the interaction of multiple variables: pain, physical requirements for a Military Occupational Specialty, manifold combinations of conditions and injuries, and individual response to treatment. Since January 2021, the Army Recovery Care Program (ARCP) has utilized Functional Capacity Evaluations (FCEs) and Work Hardening/Work Conditioning Evaluations (WH/WCE) in the Soldier Recovery Units (SRUs) to improve the process of making a separation and retention decision. The analysis of Soldiers evaluated in calendar year 2021 correlated with improved Return to Force (RTF) rates, decreased time to reach Medical Retention Determination Point (MRDP), and partial validation of the decision tree modeling used. The majority of Soldiers evaluated in calendar year 2022 have since processed out of their Soldier Recovery Unit, allowing comparison with previous results. This analysis updates the understanding of how functional evaluations can impact RTF and time to reach a retention or separation decision. This in turn can indicate whether this approach has broader applications to military medicine.