The UFC lightweight champion Frankie Edgar weighed in at 154 for his UFC lightweight championship defense against BJ Penn, who also checked in at 154. Meanwhile boxer turned MMA fighter James Toney checked in at 237 for his bout with multi-time champ Randy Couture (220).
Local favorites Marcus Davis and Kenny Florian -- who wore a Larry Bird Celtics' jersey, received strong ovations, but the loudest cheers were reserved for Couture, who some believe to be defending the sport's honor against Toney.
Though they shook hands on Wednesday, Couture and Toney did not shake hands after their Friday weigh-in, as is customary.
"It's going to be fun tomorrow, and I look forward to welcoming James Toney to mixed martial arts," Couture said with a smile. The MMA legend is a massive favorite over the debuting Toney, with most experts believing Toney won't make it out of the first round.
Toney's final weight was a significant drop from where he started his camp. According to his trainer Trever Sherman, Toney began at over 260 pounds in May.
Meanwhile, fans booed Edgar, making it clear that the challenger and former multi-division champion Penn will be the crowd favorite on Saturday.
"The fight is going to be good, but it's not just about me," Penn said to the fans. "It's about you, and UFC 118 and Dana White bringing the UFC to Boston."
Meanwhile, away from the limelight, middleweight Gerald Harris easily made the division limit of 185. Harris was originally scheduled to be on UFC 118, first against Alessio Sakara and later against Joe Vedepo. Both fights fell through, but Harris was invited to fight week by the UFC as an alternate in case any middleweight was suddenly forced out of a match. Since all four 185-pounders passed medicals and made weight, Harris will not compete, though the UFC will pay him his regular fight purse and try to set him up with a new bout in the near future.
BJ Penn (154) vs. Frankie Edgar (154)
James Toney (237) vs. Randy Couture (220)
Kenny Florian (156) vs. Gray Maynard (156)
Nate Diaz (171) vs. Marcus Davis (170)
Mario Miranda (185) vs. Demian Maia (184)
Undercard (Spike TV)
Gabe Ruediger (155) vs. Joe Lauzon (156)
Nik Lentz (155) vs. Andre Winner (154)
John Salter (185) vs. Dan Miller (185)
Greg Soto (170) vs. Nick Osipczak (171)
Amilcar Alves (171) vs. Mike Pierce (171)