Here are the weigh-in results for tonight's (Thursday's) show at the Montreal Casino. The fights will be streamed live and free online at 8 p.m. ET/5 p.m. PT on Top Rank Classics FAST Channel. To watch on mobile or desktop, visit trboxing.co/TopRankClassics. To watch on your smart TV, check the availability of FAST channel apps and look for the Top Rank Classics channel.

Mary Spencer 152.8 pounds vs. Mikaela Mayer 151 (for Spencer's WBA junior middleweight title and the vacant WBC & WBO titles — ten rounds);

Wilkens Mathieu 167.6 vs. Shakeel Phinn 166.9 (ten rounds);

Arthur Biyarslanov 139.7 vs. Sergey Lipinets 139.6 (ten rounds);

Mehmet Unal 174.7 vs. Ralf Vilcans 173.6 (ten rounds); and

Christopher Guerrero 146.9 vs. Williams Andres Herrera 146.3 (ten rounds).