Amanda Serrano did precisely what was expected Saturday in England. She returned to her dominant form, dispatched another featherweight opponent and picked up the IBF championship in the process.
By beating Sarah Mahfoud, Serrano now has all but the WBA belt, which she could potentially nab in a future fight with Erika Cruz. Serrano (43-2-1, 30 KO) rebounded from her first loss in a decade to defend her WBC and WBO belts at 126 pounds for the first time in over a year.
She remained at No. 1 in ESPN's featherweight rankings while Mahfoud (11-1, 3 KO) dipped to No. 4, flipping with Yamileth Mercado -- who Serrano beat last August. If Serrano wants to fight next at featherweight, Cruz makes all the sense for the 33-year-old from Brooklyn, New York.
In a featherweight fight on the same card, Raven Chapman (4-0, 2 KO) beat Jorgelina Guanini (10-5-2, 1 KO) -- Guanini's fourth loss in her last five fights. Chapman could be a future Serrano opponent, although it's probably too early in Chapman's career for that.
The WBA junior middleweight title did change owners Saturday as Terri Harper (13-1-1, 6 KO) -- moving up three weight classes -- won a unanimous decision over Hannah Rankin (12-6, 3 KO). It was Harper's second fight since she lost her WBC junior lightweight title to Alycia Baumgardner, and Harper looked very comfortable in the higher division.
The win pushed Harper into the 154-pound rankings at No. 3 and shifted the rest of the division underneath her. A fight with Natasha Jonas -- ESPN's No. 2 fighter in the division and the WBC and WBO titleholder -- makes all the sense to be next.
While Gabriela Celeste Alaniz's opponent wasn't that impressive, Alaniz finished her with a stoppage -- knocking her down in the seventh and then having her corner stop the fight in the ninth -- was. It was the fifth stoppage in the past seven fights for Alaniz (14-0, 6 KO) in a win over Debora Rengifo (18-10-1, 10 KO) in the first defense of her WBO flyweight title.
The win moved her up to No. 4 in ESPN's flyweight rankings and a fight with fellow Argentinian Leonela Paola Yudica in a unification bout could be next.
ESPN's No. 5 strawweight, Sarah Bormann (15-0, 7 KO), won her bout against Mexico's Elizabeth Lopez Corso (10-5-5, 1 KO) by unanimous decision.
This weekend, ESPN's No. 1 junior bantamweight, Lourdes Juarez (34-2, 4 KO), will fight for the second time this year when she takes on Asley Gonzalez Macias (14-2, 7 KO) in a WBC title bout. Macias' victories have largely come against fighters with under-.500 records, although she did knock out then-undefeated Naylea Gil Sanabia in 2019. Sanabia has since lost three of her last four fights.
Also on Saturday, ESPN's top-rated junior featherweight, Jackie Nava (39-4-4, 16 KO), is scheduled to fight Gloria Elena Yancaqueo (10-11-3, 3 KO) in a fight that feels like a mismatch. Kudakwashe Chiwandire (5-2-1, 4 KO) will defend her interim WBC junior featherweight title against Zulina Munoz (53-4-2, 30 KO).
Rankings will be updated every Tuesday. They'll be based on recent bouts, head-to-head competition and the quality of opponent. As with almost everything, until fighters square off against one another, there is a layer of subjectivity to it. Fighters who haven't fought in 18 months and don't have a fight scheduled will be removed from the rankings until they fight again.
For a list of the current champions in all weight classes, click here.
175+ pounds - Super middleweight - Middleweight - Junior middleweight - Welterweight - Junior welterweight - Lightweight - Junior lightweight - Featherweight - Junior featherweight - Bantamweight - Junior bantamweight - Flyweight - Junior flyweight - Strawweight - Atomweight
175+ POUNDS
1. Hanna Gabriels  
  Previous ranking: No. 1
Record: 21-2-1, 12 KOs
Last: W (TKO2) Martha Patricia Lara Gaytan, April 17, 2021
Next: TBA
2. Danielle Perkins     Previous ranking: No. 2
Record: 3-0, 1 KO
Last: W (UD8) Monika Harrison, March 5, 2021
Next: TBA
3. Angelica Lopez Flores     Previous ranking: No. 3
Record: 13-1, 7 KOs
Last: L (TKO1) Shadasia Green, Jan. 15
Next: TBA
4. Seini Draughn     Previous ranking: No. 4
Record: 4-0-1, 3 KOs
Last: W (MD4) Monika Harrison, May 22, 2021
Next: TBA
5. Lani Daniels     Previous ranking: No. 5
Record: 6-2-2, 0 KOs
Last: W (UD8) Tinta Smith, June 24
Next: TBA
SUPER MIDDLEWEIGHT (Up to 168 pounds)
1. Franchon Crews Dezurn     Previous ranking: No. 1
Record: 8-1, 2 KOs
Last: W (UD10) Elin Cederroos, April 30
Next: TBA
2. Christina Hammer     Previous ranking: No. 2
Record: 28-1, 13 KOs
Last: W (UD8) Luiza Davydova, May 7
Next: TBA
3. Ema Kozin     Previous ranking: No. 3
Record: 22-1-1, 12 KOs
Last: W (TKO7) Szilvia Szabados, June 4
Next: TBA
4. Elin Cederroos     Previous ranking: No. 4
Record: 8-1, 4 KOs
Last: L (UD10) Franchon Crews Dezurn, April 30
Next: TBA
5. Shadasia Green     Previous ranking: No. 5
Record: 9-0, 8 KOs
Last: W (TKO1) Angelica Lopez Flores, Jan. 15
Next: TBA
MIDDLEWEIGHT (Up to 160 pounds)
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1. Claressa Shields     Previous ranking: No. 1
Record: 12-0, 2 KOs
Last: W (UD10) Ema Kozin, Feb. 5
Next: Oct. 15 vs. Savannah Marshall
2. Savannah Marshall     Previous ranking: No. 2
Record: 12-0, 10 KOs
Last: W (KO3) Femke Hermans, April 2
Next: Oct. 15 vs. Claressa Shields
3. Maricela Cornejo  
  Previous ranking: N/R
Record: 15-5, 5 KOs
Last: W (UD8) Simone Aparecida da Silva, March 25
Next: TBA
4. Ema Kozin     Previous ranking: No. 4
Record: 22-1-1, 12 KOs
Last: W (TKO7) Szilvia Szabados, June 4
Next: TBA
5. Raquel Miller     Previous ranking: N/R
Record: 11-0, 4 KOs
Last: W (UD6) Sonya Dreiling, Dec. 2
Next: TBA
JUNIOR MIDDLEWEIGHT (Up to 154 pounds)
1. Marie-Eve Dicaire     Previous ranking: No. 2
Record: 18-1, 1 KOs
Last: W (TKO7) Cynthia Lozano, Dec. 17
Next: Nov. 12 vs, Natasha Jonas
2. Natasha Jonas     Previous ranking: No. 4
Record: 12-2-1, 8 KOs
Last: W (UD10) Patricia Berghult, Sept. 3
Next: Nov. 12 vs. Marie-Eve Dicaire
3. Terri Harper     Previous ranking: N/R
Record: 13-1-1, 6 KOs
Last: W (UD10) Hannah Ranking, Sept. 24
Next: TBA
4. Patricia Berghult     Previous ranking: No. 4
Record: 15-1, 3 KOs
Last: L (UD10) Natasha Jonas, Sept. 3
Next: TBA
5. Hannah Rankin  
  Previous ranking: 3
Record: 12-6, 3 KOs
Last: L (UD10) Terri Harper, Sept. 24
Next: TBA
WELTERWEIGHT (Up to 147 pounds)
1. Jessica McCaskill     Previous ranking: No. 1
Record: 12-2, 5 KOs
Last: W (TKO3) Alma Ibarra, June 25
Next: Nov. 5 vs. Chantelle Cameron
2. Cecilia Braekhus     Previous ranking: No. 2
Record: 36-2, 9 KOs
Last: L (UD10) Jessica McCaskill, March 13
Next: TBA
3. Layla McCarter     Previous ranking: No. 3
Record: 45-13-5, 11 KOs
Last: W (UD10) Halanna dos Santos, March 25
Next: TBA
4. Ewa Piatkowska     Previous ranking: No. 4
Record: 16-1, 4 KOs
Last: W (UD6) Judy Waguthii, May 14, 2021
Next: TBA
5. Summer Lynn     Previous ranking: N/R
Record: 7-0, 3 KOs
Last: W (UD6) Jaica Pavilus, April 2
Next: Oct. 15 vs. Deborah Willies
JUNIOR WELTERWEIGHT (Up to 140 pounds)
1. Chantelle Cameron     Previous ranking: No. 1
Record: 16-0, 8 KOs
Last: W (UD10) Victoria Noelia Bustos, May 21
Next: Nov. 5 vs. Jessica McCaskill
2. Kali Reis     Previous ranking: No. 2
Record: 19-7-1, 5 KOs
Last: W (SD10) Jessica Camara, Nov. 19
Next: TBA
3. Mary McGee     Previous ranking: No. 3
Record: 27-4, 15 KOs
Last: L (UD10) Chantelle Cameron, Oct. 30
Next: TBA
4. Jessica Camara     Previous ranking: No. 4
Record: 10-3, 2 KOs
Last: W (KO1) Josefina Vega, Sept. 17
Next: TBA
5. Oshin Derieuw     Previous ranking: N/R
Record: 16-0, 6 KOs
Last: W (UD6) Elsa Hemat, June 18
Next: TBA
-- Anahi Ester Sanchez has been removed for inactivity.
LIGHTWEIGHT (Up to 135 pounds)
1. Katie Taylor     Previous ranking: No. 1
Record: 21-0, 6 KOs
Last: W (SD10) Amanda Serrano, April 30
Next: Oct. 29 vs. Karen Elizabeth Carabajal
2. Amanda Serrano     Previous ranking: 2
Record: 43-2-1, 30 KOs
Last: W (UD10) Sarah Mahfoud, Sept. 24
Next: TBA
3. Estelle Yoka Mossely     Previous ranking: No. 3
Record: 10-0, 1 KO
Last: W (SD10) Yanina del Carmen Lescano, March 18
Next: TBA
4. Delfine Persoon     Previous ranking: No. 4
Record: 47-3, 19 KOs
Last: W (UD10) Elhem Mekhaled, May 21
Next: TBA
5. Jennifer Han     Previous ranking: No. 5
Record: 18-5-1, 1 KO
Last: L (UD10) Mikaela Mayer, April 9
Next: TBA
JUNIOR LIGHTWEIGHT (Up to 130 pounds)
Mikaela Mayer retains junior lightweight belts with win over Jennifer Han
Mikaela Mayer retains her junior lightweight titles with a unanimous decision victory over Jennifer Han.
1. Mikaela Mayer     Previous ranking: No. 1
Record: 17-0, 5 KOs
Last: W (UD10) Jennifer Han, April 9
Next: Oct. 15 vs. Alycia Baumgardner
2. Alycia Baumgardner     Previous ranking: N/R
Record: 12-1, 7 KOs
Last: W (UD10) Edith Soledad Matthysse, April 16
Next: Oct. 15 vs. Mikaela Mayer
3. Delfine Persoon     Previous ranking: 5
Record: 47-3, 19 KOs
Last: W (UD10) Elhem Mekhaled, May 21
Next: TBA
4. Maiva Hamadouche     Previous ranking: No. 3
Record: 22-2, 18 KOs
Last: L (UD10) Mikaela Mayer, Nov. 5
Next: TBA
5. Hyun Mi Choi     Previous ranking: No. 4
Record: 19-0-1, 5 KOs
Last: W (TKO9) Simone Aparecida da Silva, Sept. 18
Next: TBA
FEATHERWEIGHT (Up to 126 pounds)
1. Amanda Serrano     Previous ranking: No. 1
Record: 43-2-1, 30 KOs
Last: W (UD10) Sarah Mahfoud, Sept. 24
Next: TBA
2. Erika Cruz     Previous ranking: No. 2
Record: 15-1, 3 KOs
Last: W (UD10) Jelena Mrdjenovich, Sept. 3
Next: TBA
3. Yamileth Mercado     Previous ranking: No. 4
Record: 19-3, 5 KOs
Last: W (UD10) Isis Vargas Perez, April 2
Next: Oct. 15 vs. Mariana Juarez
4. Sarah Mahfoud     Previous ranking: No. 3
Record: 11-1, 3 KOs
Last: L (UD10) Amanda Serrano, Sept. 24
Next: TBA
5. Brenda Karen Carabajal     Previous ranking: N/R
Record: 18-5-1, 9 KOs
Last: W (MD10) Debora Anahi Dionicius, May 13
Next: TBA
JUNIOR FEATHERWEIGHT (Up to 122 pounds)
1. Jackie Nava     Previous ranking: No. 3
Record: 39-4-4, 16 KOs
Last: W (UD10) Mariana Juarez, Oct. 30, 2021
Next: Oct. 1 vs. Gloria Elena Yancaqueo
2. Yamileth Mercado     Previous ranking: No. 4
Record: 19-3, 5 KOs
Last: W (UD10) Isis Vargas Perez, April 2
Next: Oct. 15 vs. Mariana Juarez
3. Segolene Lefebvre     Previous ranking: No. 5
Record: 16-0, 1 KO
Last: W (UD10) Melania Sorroche, May 7
Next: TBA
4. Mayerlin Rivas     Previous ranking: N/R
Record: 17-4-2, 11 KOs
Last: W (TKO3) Karina Fernandez, June 10
Next: TBA
5. Cherneka Johnson     Previous ranking: N/R
Record: 14-1, 6 KOs
Last: W (MD10) Melissa Esquivel, April 20
Next: TBA
Dina Thorslund, Daniela Bermudez and Yazmin Rivas have been removed due to inactivity in the division.
BANTAMWEIGHT (Up to 118 pounds)
1. Dina Thorslund     Previous ranking: 1
Record: 18-0, 7 KOs
Last: W (UD10) Niorkis Carreno, April 9
Next: TBA
2. Yuliahn Luna Avila     Previous ranking: No. 2
Record: 24-3-1, 4 KOs
Last: W (UD10) Jessica Gonzalez, June 17
Next: TBA
3. Jamie Mitchell     Previous ranking: No. 4
Record: 8-0-2, 5 KOs
Last: W (KO4) Carly Skelly, Feb. 5
Next: TBA
4. Shannon O'Connell     Previous ranking: No. 5
Record: 23-6-1, 11 KOs
Last: W (TKO1) Sarah Higginson, June 29
Next: Dec. 10 vs. Ebanie Bridges
5. Ebanie Bridges     Previous ranking: N/R
Record: 8-1, 3 KOs
Last: W (UD10) Maria Cecilia Roman, March 26
Next: Dec. 10 vs. Shannon O'Connell
JUNIOR BANTAMWEIGHT (Up to 115 pounds)
1. Lourdes Juarez     Previous ranking: No. 1
Record: 34-2, 4 KOs
Last: W (UD10) Debora Vanesa Gomez, June 4
Next: Oct. 1 vs. Asley Gonzalez Macias
2. Yessica Chavez     Previous ranking: No. 3
Record: 32-5-3, 4 KOs
Last: W (UD8) Susy Kandy Sandoval, July 17, 2021
Next: TBA
3. Diana Laura Fernandez     Previous ranking: No. 4
Record: 25-4-1, 4 KOs
Last: W (UD10) Vanesa Lorena Taborda, March 25
Next: TBA
4. Micaela Lujan     Previous ranking: No. 4
Record: 11-1-1, 3 KOs
Last: W (MD10) Irma Garcia, Aug. 20
Next: TBA
5. Tamao Ozawa     Previous ranking: N/R
Record: 17-5, 6 KOs
Last: W (SD10) Miyo Yoshida, May 30
Next: TBA
-- Guadalupe Martinez Guzman has been remobved for inactivity.
FLYWEIGHT (Up to 112 pounds)
1. Marlen Esparza     Previous ranking: No. 1
Record: 13-1, 1 KO
Last: W (UD10) Eva Guzman, Aug. 6
Next: TBA
2. Arely Mucino     Previous ranking: No. 3
Record: 31-3-2, 11 KOs
Last: W (TKO2) Marisol Molina Sanchez, Feb. 19
Next: TBA
3. Naoko Fujioka     Previous ranking: No. 2
Record: 19-3-1, 7 KOs
Last: L (UD10) Marlen Esparza, April 9
Next: TBA
4. Gabriela Celeste Alaniz     Previous ranking: 5
Record: 14-0, 6 KOs
Last: W (TKO9) Debora Rengifo, Sept. 24
Next: TBA
5. Ibeth Zamora     Previous ranking: No. 4
Record: 32-7, 12 KOs
Last: L (UD10) Marlen Esparza, June 19, 2021
Next: TBA
JUNIOR FLYWEIGHT (Up to 108 pounds)
1. Seniesa Estrada     Previous ranking: No. 1
Record: 22-0, 9 KOs
Last: W (TKO4) Maria Santizo, Dec. 18
Next: TBA
2. Kim Clavel     Previous ranking: No. 2
Record: 16-0, 3 KOs
Last: W (UD10) Yesenia Gomez, July 29
Next: Dec. 1 vs. Jessica Nery Plata
3. Evelin Bermudez     Previous ranking: No. 3
Record: 17-0-1, 6 KOs
Last: W (UD10) Yairineth Altuve, July 23
Next: TBA
4. Jessica Nery Plata     Previous ranking: NR
Record: 28-2, 3 KOs
Last: W (SD10) Yesica Yolanda Bopp, March 11
Next: Dec. 1 vs. Kim Clavel
5. Yesenia Gomez     Previous ranking: 5
Record: 19-6-3, 6 KOs
Last: L (UD10) Kim Clavel, July 29
Next: TBA
STRAWWEIGHT (Up to 105 pounds)
1. Seniesa Estrada     Previous ranking: No. 1
Record: 22-0, 9 KOs
Last: W (TKO4) Maria Santizo, Dec. 18
Next: TBA
2. Yokasta Valle     Previous ranking: No. 3
Record: 26-2, 9 KOs
Last: W (UD10) Thi Thu Nhi Nguyen, Sept. 8
Next: TBA
3. Tina Rupprecht     Previous ranking: No. 2
Record: 11-0-1, 3 KOs
Last: W (SD10) Katia Gutierrez, July 24
Next: TBA
4. Anabel Ortiz     Previous ranking: No. 4
Record: 31-5, 4 KOs
Last: L (UD10) Marlen Esparza, Dec. 18
Next: TBA
5. Sarah Bormann     Previous ranking: N/R
Record: 15-0, 7 KO
Last: W (UD10) Elizabeth Lopez Corzo, Sept. 24
Next: TBA
ATOMWEIGHT (Up to 102 pounds)
1. Monserrat Alarcon     Previous ranking: No. 1
Record: 17-4-2, 0 KO
Last: W (MD10) Silvia Torres, Dec. 4
Next: Sept. 30 vs. Brenda Balderas Martiinez
2. Mika Iwakawa     Previous ranking: N/R
Record: 11-6-1, 3 KO
Last: W (UD10) Ayaka Miyao, Sept. 1
Next: TBA
3. Fabiana Bytyqi     Previous ranking: 4
Record: 19-0-2, 5 KO
Last: D (SD10) Elizabeth Lopez Corzo, Jul. 29
Next: TBA
4. Eri Matsuda     Previous ranking: 5
Record: 5-1-1, 1 KO
Last: W (UD10) Kaori Nagai, Sept. 1
Next: TBA
5. Ayaka Miyao     Previous ranking: No. 4
Record: 25-10-2, 6 KO
Last: L (UD10) Mika Iwakawa, Sept. 1
Next: TBA