BJ Penn vs Dennis Siver — Fight recap

Dennis Siver defeated BJ Penn via majority decision after three rounds on June 25, 2017, in a striking-heavy affair where Penn landed the cleaner combinations but couldn't overcome Siver's volume. Penn connected on 57 of 107 significant strikes (53%) with a knockdown in the fight, while Siver threw 103 of 280 significant strikes at 36% accuracy, leaning heavily on leg kicks with 35 landed.

Penn controlled the cage for 2:02 of fight time compared to Siver's 0:11, dominating the technical exchanges and precision, but the judges favored Siver's aggressive forward pressure and output across the three rounds. The loss marked another step in Penn's decline from his featherweight championship days, suggesting the former champion had lost a step against mid-tier opposition in the 145-pound division.