Complex sentence: He had finished as a runner-up the previous two years, and it was the third of Guldahl's three major titles; he won consecutive U.S. Open titles in 1937 and 1938.
Split into simpler sentences: He had finished as a runner-up the previous two years. It was the third of Guldahl's three major titles; he won consecutive U.S. Open titles in 1937 and 1938.