 In the 1973-1975 National Championship PSSI western region, Persiraja successfully become champion by beating strong teams from Sumatra.At that time, Persiraja successfully topped the final standings with 11 points and goal difference 31-10 (21).Thus, Persiraja right to advance to the National Championship 1975-1978 PSSI national level with PSMS Medan, PSL, and PS Bangka.