BACKGROUND Rapid source control laparotomy (RSCL) for the management of non-traumatic intra-abdominal emergencies has increased over the past 25 years when it was advocated for trauma patients. Little data, however, support its widespread use. We hypothesize that the patients with RSCL will have poorer outcomes than those treated with primary fascial closure (PFC). METHODS Patients operated for acute diverticulitis from 2014 to 2016 using The American College of Surgeons sponsored National Surgical Quality Improvement Program (NSQIP) data were reviewed. Two groups were identified: PFC, patients with their closed fascia but skin left open (PFC) and RSCL, patients with their left open fascia after the initial operation. The primary outcome of the study was 30-day mortality, with secondary analyses evaluating complications, discharge location and length of stay. Univariate analysis was initially performed followed by propensity score matching. RESULTS A total of 460 patients were surgically treated for Hinchey IV diverticulitis of whom 101 (21.9%) had RSCL. The length of stay of the RSCL patients was significantly longer (15 versus 12 days, p, 0.02) than patients in the PFC group. Similarly, the discharge destination for the PFC group was twice as likely to be discharged home as the RSCL group. CONCLUSIONS RSCL for acute diverticulitis is a widely used but is associated with prolonged hospitalizations resulting in high rates of discharge to skilled nursing or rehabilitation facilities. Its routine use for diverticulitis should be limited.