Data for this study were obtained from the Minnesota Sentencing Guidelines Commission. Preguideline and postguideline data were calibrated into monthly intervals. Variables included unwarranted disparity, an interaction term for offense seriousness and criminal history, personal versus property crime, and use of a weapon. The findings show that Minnesota's sentencing guidelines have dramatically effectuated sentencing equivalence in terms of prison length decision. The guidelines have also reduced disparity for the no prison/prison judicial decision, but to a lesser degree. However, sentencing equality diminished over time for the no prison/prison sentencing outcome. This finding suggests a need for increased monitoring of judicial compliance with the guidelines and stricter adherence to the principle of just deserts. 1 table, 2 figures, 7 notes, and 19 references