Some of the fighters had to strip down to their skivvies, but there wasn't any controversy surrounding the event. Headliners Frankie Edgar and BJ Penn weighed in at the same mass for their lightweight championship, while James Toney posts 17 pounds over his heavyweigth opponent Randy Couture.
Check out the fight card below with all the weights recorded as of Friday afternoon.
Lightweight Championship: Frankie Edgar (154 lbs) vs. BJ Penn (154 lbs)
Heavyweight Bout: James Toney (237 lbs) vs. Randy Couture (220 lbs)
Lightweight Bout: Kenny Florian (156 lbs) vs. Gray Maynard (156 lbs)
Welterweight Bout: Nate Diaz (171 lbs) vs. Marcus Davis (170 lbs)
Middleweight Bout: Mario Miranda (185 lbs) vs. Damian Maia (185 lbs)
Lightweight Bout: Joe Lauzon (156 lbs) vs. Gabe Ruediger (155 lbs)
Lightweight Bout: Andre Winner (154 lbs) vs. Nick Lentz (155 lbs)
Middleweight Bout: Dan Miller (185 lbs) vs. John Salter (185 lbs)
Welterweight Bout: Nick Osipczak (170 lbs) vs. Greg Soto (171 lbs)
Welterweight Bout: Almicar Alves (171 lbs) vs. Mike Pierce (171 lbs)
Renowned photographer and NESN MMA Insider, Emily Harney, was on hand to capture some of the dramatics from the weigh in.