Roger Jack began playing tennis at eight years of age.  He played junior tournaments at the local, state, sectional, and national levels.  He played tennis for Northwest Classen High School in Oklahoma City and qualified to represent Oklahoma in National Junior tournaments.

He played collegiate tennis at Oklahoma State University in 1958-1959 and then transferred to Central State University from 1960-1963.  He also taught tennis there from 1962-1963.

Roger was the first tennis coach at Oklahoma City University.  He was also the head tennis pro at the Oklahoma City Golf & Country Club from 1963-1969.  He organized a professional tournament held there from 1964-1966.  Players competing there included tennis greats such as Ken Rosewall, Rod Laver, Lew Hoad, Butch Buchholz, Roy Emerson, Pancho Gonzales, John Newcombe, Pancho Segura, and many others.

In July, 1966, Roger was named Oklahoma Sportsman of the Month after playing Pancho Segura in tennis and then winning the Oklahoma Trap Shooting Championships.

From 1969-1971, he was the manager of Emerald Manufacturing Company, a PVC film packing company in Oklahoma City.

Jack assumed the head professional position at Woodlake Racquet Club in Oklahoma City in 1974.  He was in charge of the design phase and on-site construction of the facility.  In 1976, there were 1100 members at Woodlake.  He coordinated two Missouri Valley Sectional Championships, three professional satellite ATP tournaments, and three National Men's 35 Indoor tournaments that were held at Woodlake.  He was the first certified tennis professional in Oklahoma City, a certification he held for 25 years.