Complex sentence: Wade continued to succeed at Duke, most notably in 1938, when his "Iron Dukes" went unscored upon until reaching the 1939 Rose Bowl, where they lost, 7--3, to the USC in Duke's first Rose Bowl appearance.
Split into simpler sentences: Wade continued to succeed at Duke, most notably in 1938, when his "Iron Dukes" went unscored upon until reaching the 1939 Rose Bowl. The "Iron Dukes" went unscored upon until reaching the 1939 Rose Bowl, where they lost, 7--3, to the USC in Duke's first Rose Bowl appearance.