Spencer vs Mayer

Who won Spencer vs Mayer?

Mikaela Mayer beat Mary Spencer by unanimous decision in their 10 round contest on Thursday, October 30th, 2025, at Montreal Casino, Montreal.

The scorecards were announced as 100-90, 98-92, 98-92 in favor of winner Mikaela Mayer.

The fight was scheduled to take place over 10 rounds in the Super Welterweight division, which meant the weight limit was 154 pounds (11 stone or 69.8 kg).

Also on the undercard Wilkens Mathieu was victorious over Shakeel Phinn, Movladdin Biyarslanov beat Sergey Lipinets, and Mehmet Unal defeated Ralfs Vilcans.

Spencer vs Mayer stats

Mary Spencer stepped into the ring with a record of 10 wins, 2 losses, and 0 draws.

Mikaela Mayer made her way to the ring with a record of 21 wins, 2 losses and 0 draws.

Mary Spencer was the older woman by 5 years, at 40 years old.

Spencer had a height advantage of 2 inches over Mayer.

Both Mary Spencer and Mikaela Mayer fought out of an orthodox stance.

Spencer was the less experienced professional fighter, having had 11 fewer fights, and made her debut in 2021, 4 years later than Mayer, whose first professional fight was in 2017. She had fought 116 fewer professional rounds, totaling 68 compared to Mayer's 184.

Spencer vs Mayer form

Mikaela Mayer had beaten 4 of her last 5 opponents.

In her last fight leading up to this contest, she had won against Sandy Ryan on March 29, 2025, by unanimous decision in their 10 round contest at Fontainebleau Las Vegas, Las Vegas, United States.

Prior to that, she had won against Sandy Ryan on September 27, 2024, by majority decision in their 10 round contest at Madison Square Garden, New York.

Going into that contest, she had been beaten by Natasha Jonas on January 20, 2024, by split decision in their 10 round contest at M&S Bank Arena, Liverpool, United Kingdom.

Before that, she had beaten Silvia Bortot on September 2, 2023, by points in the 10th round at Manchester Arena, Manchester.

She had defeated Lucy Wildheart on April 15, 2023, by unanimous decision in their 10 round contest at Copper Box Arena, London.

Activity check

Mayer's last 5 fights had come over a period of 2 years, 6 months and 15 days, meaning she had been fighting on average every 6 months and 4 days. In those fights, she fought a total of 50 rounds, meaning that they had lasted 10 rounds on average.

What time did Spencer vs Mayer start?

The fighters were expected to ringwalk at around 4:00 AM UTC at Montreal Casino, Montreal, Canada, which was 12:00 AM EST or 9:00 PM PST on the West Coast of America, or 4:00 AM GMT in the UK.

Who broadcast Spencer vs Mayer?

The Top Rank Classics show began at 8:00 PM EST / 5:00 PM PST. The Top Rank Classics broadcast of the card started at 1:00 AM (GTM).

What were the odds on Spencer vs Mayer?

Mary Spencer was a 5/1 (+1100) underdog going into the contest, while Mikaela Mayer made her way into the ring at 2/13 (-910) with oddsmakers.