In a back and forth fight, Mayer (16-0, 5 KOs), 31, of Woodland Hills, California won by the scores of 100-90, 99-91 and 98-92 in the Top Rank on ESPN main event at Virgin Hotels Las Vegas on Nov. 5.
ESPN writer Michael Rothstein moved Mayer up one spot after the victory, saying Mayer looked impressive against Hamadouche.
“Against her toughest opponent to date, Mikaela Mayer looked her best — and took her fighting to another level,” Rothstein said of Mayer’s performance. “She showed she could win, and be technically smart, in a brawling fight in addition to her usual boxing repertoire.
“It was a fight where Mayer’s growth was too evident to ignore. Nothing against lightweight Delfine Persoon, who also won last week, but at this point Mayer looks like a superior fighter. So I flipped them on my list. Hopefully that’s a fight we see down the road, perhaps after Mayer becomes undisputed in her division if she’s able to do so.”
Another fighter making a move is Savannah Marshall, who defended her WBO middleweight title recently to move into the top 10.
Marshall (11-0, 9 KOs), 30, of Hartlepool, England, defeated Lolita Muzeya (16-1, 8 KOs), 30, of Mwinilunga, Zambia by second-round TKO to stay unbeaten. Marshall is scheduled to return to the ring on Dec. 11 when she will share a boxing card with Shields to set up a megafight between both champions early next year.
Who else made the top 10? Here’s the list:
Note: Results are through Nov. 10.
1. KATIE TAYLOR Previous ranking: No. 1
RECORD: 19-0, 6 KOs DIVISION: Lightweight undisputed champion LAST FIGHT: W (UD10) Jennifer Han, Sept. 4 NEXT FIGHT: Dec. 11 vs. TBA
2. CLARESSA SHIELDS Previous ranking: No. 2
RECORD: 11-0, 2 KOs DIVISION: Junior middleweight and middleweight undisputed champion LAST FIGHT: W (UD10) Marie Eve Dicaire, March 5 NEXT FIGHT: Dec. 11 vs. TBA
3. AMANDA SERRANO Previous ranking: No. 3
RECORD: 41-1-1, 30 KOs DIVISION: Featherweight unified champion LAST FIGHT: W (UD10) Yamileth Mercado, Aug. 29 NEXT FIGHT: Dec. 18 vs. Miriam Gutierrez
4. JESSICA MCCASKILL Previous ranking: No. 4
RECORD: 10-2, 3 KOs DIVISION: Welterweight undisputed champion LAST FIGHT: W (UD10) Cecilia Braekhus, March 13 NEXT FIGHT: TBA
5. MIKAELA MAYER Previous ranking: No. 5
RECORD: 16-0, 5 KOs DIVISION: Junior lightweight unified champion LAST FIGHT: W (UD10) Maiva Hamadouche, Nov. 5 NEXT FIGHT: TBA
6. DELFINE PERSOON Previous ranking: No. 6
RECORD: 45-3, 18 KOs DIVISION: Lightweight LAST FIGHT: W (TKO4) Beatriz Aguilar, Nov. 1 NEXT FIGHT: TBA
7. TERRI HARPER Previous ranking: 9
RECORD: 11-0-1, 6 KOs DIVISION: Junior lightweight champion LAST FIGHT: W (TKO9) Katharina Thanderz, Nov. 14 NEXT FIGHT: Nov. 13 vs. Alycia Baumgardner
8. CHRISTINA HAMMER Previous ranking: No. 7
RECORD: 26-1, 12 KOs DIVISION: Super middleweight champion LAST FIGHT: W (KO7) Sanna Turunen, Dec. 20 NEXT FIGHT: Dec. 3 vs. TBA
9. SENIESA ESTRADA Previous ranking: 10
RECORD: 21-0, 8 KOs DIVISION: Junior flyweight champion LAST FIGHT: W (UD10) Tenkai Tsunami, July 9 NEXT FIGHT: TBA
10. SAVANNAH MARSHALL Previous ranking: N/R
RECORD: 11-0, 9 KOs DIVISION: Middleweight champion LAST FIGHT: W (TKO2) Lolita Muzeya, Oct. 16 NEXT FIGHT: Dec. 11 vs. TBA
The formula
The rankings are based on a descending points system, with a first-place vote receiving 10 points, a second-place vote receiving nine points and so on.