The objectives of this study were to characterize a reservice occurrence and reservice intervals (RI) on commercial farms; and to investigate associations of the number of services, RI, parity, lactation length, and weaning-to-first-mating intervals (WMI) with farrowing rate and pigs born alive (PBA). It was found that reservice decreased farrowing rate in both gilts and sows, but no influence on PBA was found. Increasing farrowing rate in non-returned females and minimizing RI in reserviced females at low parity improved herd productivity.