Jacobson was a two-time NJSGA Amateur champion (1955, ’56) and a two-time NJSGA Junior Champion (1934, ’35). He was twice runner-up in the Amateur, losing to Billy Dear in 1950 and Chet Sanok in 1951.
In his second round at the 1934 U.S. Amateur, Jacobson, then 16, defeated Johnny Goodman, the 1933 U.S. Open champion on the first playoff hole. He lost in the fourth round to eventual runner-up Spec Goldman.
In 1960, Jacobson became – at age 42 – the youngest NJSGA president. He and his NJSGA predecessor, Fred Compher, conceived the idea of the Compher Cup, which soon became an annual competition that still exists today between teams representing the Golf Association of Philadelphia and the NJSGA.
1934 U.S. Amateur, at age 16, defeated the 1933 U.S. Open champion, Johnny Goodman, on 19th hole in second round and lost to eventual champion, Lawson Little in the fourth round
1934 & 1935 NJSGA Junior Champion and medalist in both
1934 MGA Junior Champion, defeated Frank Strafaci
1949 NJSGA Amateur, lost in semi-final to Joe McBride
1950 NJSGA Amateur, Runner-up, lost to Chet Sanok
1950 MGA Amateur, Runner-up, lost to Frank Strafaci
1951 NJSGA Amateur, Runner-up, lost to Billy Dear
1952 NJSGA Amateur, lost in quarterfinals to Donald Housen, 23 holes
1955 and 1956 NJSGA Amateur Champion
1963 NJSGA Pre-Senior Champion