#2: Jim Miller - 10 First-Round Finishes
Jim Miller is another active UFC fighter who has been able to rack up first-round finishes over a lengthy career. In 2010, Miller even took out current lightweight champion Charles Oliveira in the first round of their bout.
Miller is a submission specialist and nine of his ten first-round finishes have come via making his opponents tap out. The one exception to this rule was Miller's TKO win over Takanori Gomi at UFC 200.
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Given he is still adding wrinkles to his game, perhaps the 38-year-old Miller can continue adding to his current tally of 10.
#1: Frank Mir - 11 First-Round Finishes
Surprisingly, Frank Mir is the only member of this list not currently competing in the UFC. Mir racked up most of his first-round finishes in the early days of the organization, as he debuted with the company in just his third pro fight.
Mir quickly finished four of his first five opponents in the first round. The next time he achieved this feat he defeated Tim Sylvia for the heavyweight championship. He also famously submitted Brock Lesnar in the first round at UFC 81.
Known for his grappling, eight of Mir's first nine first-round stoppages saw him submit his opponents, with the anomaly being a DQ win in 2003. However, Mir's last two first-round finishes were knockouts and he has now begun a boxing career.