Answer
Jake Shields' 15-fight win streak is a testament to his dominance in the sport of mixed martial arts. Beginning in 2005, Shields went undefeated for over six years, capturing the Shooto Welterweight Championship and the Strikeforce Middleweight Championship along the way. His streak included victories over notable opponents such as Carlos Condit, Robbie Lawler, and Dan Henderson, solidifying his status as one of the most skilled grapplers in the sport.