HEC HMS

FOR CATCHMENT LIKE THIS (GIVE IN FIGURE). I AM INTERESTED TO FIND RUNOFF. WHILE I HAVE DAILY RAINFALL DATA OF ONE GAUGE.WHICH IS INSTALLED NEAR THE OUTLET. CAN I RUN HEC HMS MODEL LIKE IN THE FIGHURE(SEPARATE BASINS). OR RUN IT AS ONE BASIN NOT DISTRIBUTE IT INTO SUB BASINS? does HEc hms this like capability to run sub basin on one gauge data?