The WBA junior middleweight world title showdown between reigning champion Mary Spencer and two-weight queen Mikaela Mayer (pictured) will take place on Thursday, Oct. 30th at Montreal Casino in Montreal. It will stream live and exclusively in the U.S. on the Top Rank Classics' FAST channel. Top Rank Classics is free and available on major FAST hubs. Spencer-Mayer and select undercard bouts will stream on Top Rank Classics beginning at 8 p.m. ET/5 p.m. PT. Mayer (21-2, 5 KOs) is the reigning WBO welterweight champion, a title she won last September with a majority decision over British standout Sandy Ryan. She defeated Ryan by unanimous decision in March’s rematch. Spencer (10-2, 6 KOs), a 2012 Olympian and three-time amateur world champion as a Team Canada amateur standout, made the first defense of her championship in April with a unanimous decision over former world champion Ogleidis Suarez.

UNDERCARD

The Top Rank Classics stream is also scheduled to include the following undercard bouts:

Wilkens Mathieu (14-0, 10 KOs) vs. Shakeel Phinn (27-3-2, 17 KOs), super middleweights;

Arthur Biyarslanov (19-0, 16 KOs) vs. Sergey Lipinets (18-4-1, 13 KOs), junior welterweights;

Mehmet Unal (13-0, 11 KOs) vs. Ralfs Vilcans (18-2, 7 KOs), light heavyweights; and

Christopher Guerrero (15-0, 9 KOs) vs. Williams Andres Herrera (17-4, 7 KOs), welterweights.