An analysis of two guidance algorithms, a numeric predictor corrector and a velocity trigger, for single-stage entry drag modulation is presented. The performance of both algorithms is analyzed with a three degree-of-freedom simulation and Monte Carlo techniques. Entry conditions and vehicle parameters are varied to identify trends in performance across different initial conditions, ballistic coefficient ratios, and target locations. Results indicate that both algorithms can provide landing accuracy of 10 km across a range of vehicle properties and entry conditions. The velocity trigger can perform nearly as well as the numerical predictor corrector for missions with low ballistic coefficient ratios and entry flight-path angles steeper than-18 deg. The numeric predictor corrector provides consistent flight performance across all entry parameters with accuracy better than approximately 5 km.