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There are very few documented instances of actual quickdraw duels in the wild west, most proper duels would be done in a manner akin to that of Appaloosa (2009), where both parties would get a loaded and cocked pistol ready to fire.
Duels weren’t just “the way to solve things” back then, you’d still go to jail for murder, so oftentimes duels were avoided as much as possible or were done without fatal results, dueling was a ‘formal’ method of solving an issue and would not even have to be done to the death most of the time, oftentimes just showing up, or drawing blood from your oponent would’ve been considered enough to be satisfactory, if you wanted somebody dead you’d shoot him in the back, nobody’s stupied enough to challenge a man you want dead to a duel.
The only recorded instance of a duel in the wild west happened in Springfield, Missouri in 1865, where lawman Wild Bill Hickok stood 75 feet apart from former Confederate Davis Tutt after Tutt managed to beat Hickok in a poker match that ended with Hickok losing a prized pocket watch to Tutt, when Tutt walked through the town’s main street the day after wearing the watch as a way to taunt Hickok, they both drew their guns and fired at the same time. While Tutt completely missed his shot, Hickok steadied his Colt on his forearm and struck Tutt in the left side between the fifth and seventh ribs, which caused to Tutt call out, “Boys, I’m killed!” Before he ran onto the porch of the local courthouse and back to the street, where he collapsed and died.
Later on when dime-novels and glorifications of the Wild West became prevalent in American culture (such as with Buffallo Bill’s Wild West Show), quickdraw duels were added not only as a method of suspense, but also as a feat of heroism, and marksmanship, which later carried on onto TV movies and shows such as Johnny Ringo (1957), where every episode would end with Ringo dueling the episode’s bad guy with his LeMat revolver.