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In 1973 Army SC, captained by S.P. de Silva, shared the Clifford Cup with Police SC following a 19 all draw. It wasn't until 1975, under Saliya Udugama, that Army SC won the Clifford Cup outright for the first time by beating Air Force SC 4–3.
In 1978 the Clifford Cup was awarded to the League Champions and the knockout competition was played for SLRFU President's Trophy. In 1979 Army SC won the President's Trophy at Galle Face, led by Daya Ratnayake, beating a strong Havelock Sports Club 21–3. In 1981 Army won the President’s Trophy again under the captaincy of John Senaweera.