BACKGROUND: Traditional resident education were weekly lectures, M&M and surgical training involving “see one; do one and teach one.” In more recent time, clinical training in both medical school and residency has been significantly impacted by national educational policies, a focus on patient safety and a decrease financial support for indigent health care. METHODS: IBC 3-days curriculum was composed of reading materials and lectures on prenatal care, labor, contraception, surgical techniques, abortion (Ab) and ectopic pregnancy, ward emergencies, postpartum hemorrhage (PPH), postoperative fever and postpartum care, fluid/electrolytes and pain management. The simulation trainings included pap/bimanual exam, vaginal and cesarean delivery, knot and suturing, IUD insertion, episiotomy repair, Ob ultrasound, and ward emergency, postop infection and pulmonary emboli (PE) management. Data on medical school graduates, gender, USMLE step 1 and 2 exams were compared. A 17-questions survey on their clinical skill preparedness in various Ob Gyn clinical settings scored on a 7-likert scale with score of 1–3 for not well-prepared and score of 5–7 for well-prepared for patient evaluation/management and Ob Gyn procedures. RESULTS: The IBC and NBC groups were similar in gender, medical school attended and step 1. The IBC group did score significantly higher on step 2. There was a trend for higher CREOG and higher portion of residents scored above the national mean of 200. The IBC group felt better prepared to manage in Ob triage (4.27), clinic (4.47), postop fever (4.80), PE (4.13), Ab (4.47), and ectopic (4.40). However, IBC group felt less prepared to perform procedures: suturing (4.47), SVD (4.47), CS (3.33), D&C (3.93), Colpo (4.80), and IUD insertion (4.47) and to manage ward call (3.93) and PPH (3.87). DISCUSSION: Residents who received IBC training felt better prepared to manage Ob triage, clinic, postop fever, PE, ab, and ectopic, but less prepared to manage labor, PPH and to perform Ob Gyn procedures. Despite scoring higher in CREOG, they still felt less prepared.