Tiger Woods has won four PGA Championships, but on Wednesday it was his son Charlie, who made nine birdies during the second round of the Junior PGA Championship at Purdue University’s Kampen Course to jump more than 40 spots up the leaderboard and into contention.

A week removed from his MC at the U.S. Junior, the 16-year-old Woods fired a 6-under 66 Wednesday at the Birck Boilermaker Golf Complex in West Lafayette, Indiana.