|UFC 58: USA vs. Canada|
|Promotion||Ultimate Fighting Championship|
|Date||March 4, 2006|
|Venue||Mandalay Bay Events Center|
|City||Las Vegas, Nevada|
|Attendance||9,569 (8,183 paid)|
UFC 58: USA vs. Canada was a mixed martial arts event held by the Ultimate Fighting Championship on March 4, 2006. It was held at the Mandalay Bay Events Center on the Las Vegas Strip in Nevada, and broadcast live on pay-per-view in the United States.
In keeping with the theme of the card, most of the fights featured an American fighter against a Canadian fighter.
Five of the seven Canadian fighters featured, Icho Larenas, Sam Stout, Mark Hominick, Georges St-Pierre, and David Loiseau, were at the time champions in the Canadian TKO Major League MMA promotion.
This event also featured the return of the lightweight division to the UFC, which had been suspended since UFC 49
|Middleweight||Rich Franklin (c)||def.||David Loiseau||Decision (unanimous) (50–43, 50–43, 50–42)||5||5:00||[a]|
|Middleweight||Mike Swick||def.||Steve Vigneault||Submission (guillotine choke)||1||2:09|
|Welterweight||Georges St. Pierre||def.||B.J. Penn||Decision (split) (29–28, 28–29, 29–28)||3||5:00|
|Middleweight||Nate Marquardt||def.||Joe Doerksen||Decision (unanimous) (30–27, 30–27, 30–27)||3||5:00|
|Lightweight||Mark Hominick||def.||Yves Edwards||Submission (triangle armbar)||2||1:52|
|Lightweight||Sam Stout||def.||Spencer Fisher||Decision (split) (29–28, 29–28, 28–29)||3||5:00||[b]|
|Light Heavyweight||Jason Lambert||def.||Rob MacDonald||Submission (kimura)||1||1:54|
|Heavyweight||Tom Murphy||def.||Icho Larenas||TKO (punches)||3||1:59||[c]|
- Mixed martial arts show results, Mandalay Bay, March 4, 2006 (PDF), Nevada State Athletic Commission, retrieved March 20, 2006
- "Franklin Dominates Loiseau; 'Rush' Beats Penn at UFC 58" by Thomas Gerbasi, UFC.tv, March 5, 2006, retrieved March 5, 2006
- UFC PPV Buys Explode in 2006
- UFC Fighter Salaries for 2006 (includes fighter salaries for UFC 58)