After Jack Della Maddalena won the UFC welterweight championship over the weekend, it should come as no surprise that he now owns the No. 1 spot in ESPN's 170-pound rankings.
The Australian used crisp striking and elusive footwork to dethrone Belal Muhammad, who drops one spot.
That is far from the only movement in the latest divisional rankings. Much of the jostling for position comes at women's flyweight, the other weight class in which a title was up for grabs at UFC 315.
Valentina Shevchenko, who successfully defended her belt, remains at No. 1. The challenger she defeated, Manon Fiorot, actually rises a spot from No. 3 despite the loss. That's because the previous No. 2, Alexa Grasso, lost in more convincing fashion. Her conqueror, Natalia Silva, moves into the top 5 for the first time.
Dropping from the rankings entirely are a pair of former champions. Longtime featherweight king José Aldo is gone from the bantamweight top 10 after losing to Aiemann Zahabi and announcing his retirement. Onetime strawweight titleholder Jessica Andrade fell from the rankings in both that division and flyweight after being finished by Jasmine Jasudavicius, who enters the 125-pound top 10.
Here are the ESPN pound-for-pound MMA rankings and a list of current UFC champions in all weight classes.
Results are current; rankings as of May 13. To be eligible for the rankings, a fighter must have competed over the past 12 months or must have an upcoming fight booked. Fighters who have been dropped for inactivity can be reinstated only after they compete.
Heavyweight | Light heavyweight | Middleweight | Welterweight
Lightweight | Featherweight | Men's bantamweight
Men's flyweight | Women's bantamweight | Women's flyweight | Strawweight
HEAVYWEIGHT (up to 265 pounds)
1. Tom Aspinall 
Promotion: UFC interim champion
Record: 15-3
Last: W (TKO1) vs. Curtis Blaydes, July 27
Next: TBD
2. Francis Ngannou
Promotion: PFL Super Fights champion
Record: 18-3
Last: W (KO1) vs. Renan Ferreira, Oct. 19
Next: TBD
3. Jon Jones
Promotion: UFC champion
Record: 28-1, 1 NC
Last: W (TKO3) vs. Stipe Miocic, Nov. 16
Next: TBD
4. Ciryl Gane
Promotion: UFC
Record: 13-2
Last: W (SD) vs. Alexander Volkov, Dec. 7
Next: TBD
5. Curtis Blaydes
Promotion: UFC
Record: 18-5, 1 NC
Last: L (TKO1) vs. Tom Aspinall, July 27
Next: June 21 vs. Rizvan Kuniev
6. Alexander Volkov
Promotion: UFC
Record: 38-11
Last: L (SD) vs. Ciryl Gane, Dec. 7
Next: TBD
7. Sergei Pavlovich
Promotion: UFC
Record: 19-3
Last: W (UD) vs. Jairzinho Rozenstruik, Feb. 1
Next: TBD
8. Jailton Almeida
Promotion: UFC
Record: 22-3
Last: W (TKO1) vs. Serghei Spivac, Jan.18
Next: TBD
9. Renan Ferreira
Promotion: PFL champion
Record: 13-4, 3 NC
Last: L (KO1) vs. Francis Ngannou, Oct. 19
Next: TBD
10. Serghei Spivac
Promotion: UFC
Record: 17-5
Last: L (TKO1) vs. Jailton Almeida, Jan. 18
Next: TBD
LIGHT HEAVYWEIGHT (up to 205 pounds)
1. Magomed Ankalaev
Promotion: UFC champion
Record: 21-1-1, 1 NC
Last: W (UD) vs. Alex Pereira, March 8
Next: TBD
2. Alex Pereira
Promotion: UFC
Record: 12-3
Last: L (UD) vs. Magomed Ankalaev, March 8
Next: TBD
3. Jirí Procházka
Promotion: UFC
Record: 31-5-1
Last: W (TKO3) vs. Jamahal Hill, Jan. 18
Next: TBD
4. Carlos Ulberg
Promotion: UFC
Record: 13-1
Last: W (UD) vs. Jan Blachowicz, March 22
Next: TBD
5. Jamahal Hill
Promotion: UFC
Record: 10-3
Last: L (TKO3) vs. Jirí Procházka, Jan. 18
Next: June 21 vs. Khalil Rountree Jr.
6. Khalil Rountree Jr.
Promotion: UFC
Record: 13-6, 1 NC
Last: L (TKO4) vs. Alex Pereira, Oct. 5
Next: June 21 vs. Jamahal Hill
7. Aleksandar Rakić
Promotion: UFC
Record: 14-5
Last: L (UD) vs. Magomed Ankalaev, Oct. 26
Next: TBD
8. Dominick Reyes
Promotion: UFC
Record: 15-4
Last: W (KO1) vs. Nikita Krylov, April 12
Next: TBD
9. Volkan Oezdemir
Promotion: UFC
Record: 20-8
Last: L (UD) vs. Carlos Ulberg, Nov. 23
Next: TBD
10. Johnny Walker
Promotion: UFC
Record: 21-9, 1 NC
Last: L (KO1) vs. Volkan Oezdemir, June 22
Next: TBD
MIDDLEWEIGHT (up to 185 pounds)
1. Dricus du Plessis
Promotion: UFC champion
Record: 23-2
Last: W (UD) vs. Sean Strickland, Feb. 8
Next: Aug. 16 vs. Khamzat Chimaev
2. Khamzat Chimaev
Promotion: UFC
Record: 14-0
Last: W (Sub1) vs. Robert Whittaker, Oct. 26
Next: Aug. 16 vs. Dricus Du Plessis
3. Sean Strickland
Promotion: UFC
Record: 29-7
Last: L (UD) vs. Dricus Du Plessis, Feb. 8
Next: TBD
4. Nassourdine Imavov
Promotion: UFC
Record: 16-4, 1 NC
Last: W (KO2) vs. Israel Adesanya, Feb. 1
Next: TBD
5. Israel Adesanya
Promotion: UFC
Record: 24-5
Last: L (KO2) vs. Nassourdine Imavov, Feb. 1
Next: TBD
6. Robert Whittaker
Promotion: UFC
Record: 26-8
Last: L (Sub1) vs. Khamzat Chimaev, Oct. 26
Next: July 26 vs. Reinier de Ridder
7. Johnny Eblen
Promotion: PFL Champions Series champion
Record: 16-0
Last: W (UD) vs. Fabian Edwards, Oct. 19
Next: July 26 vs. Costello van Steenis
8. Caio Borralho
Promotion: UFC
Record: 17-0, 1 NC
Last: W (UD) vs. Jared Cannonier, Aug. 24
Next: TBD
9. Jared Cannonier
Promotion: UFC
Record: 18-8
Last: W (TKO4) vs. Gregory Rodrigues, Feb. 15
Next: TBD
10. Roman Dolidze
Promotion: UFC
Record: 15-3
Last: W (UD) vs. Marvin Vettori, March 15
Next: TBD
WELTERWEIGHT (up to 170 pounds)
1. Jack Della Maddalena 
Promotion: UFC champion
Previous ranking: 3
Record: 18-2
Last: W (UD) vs. Belal Muhammad, May 10
Next: TBD vs. Islam Makhachev
2. Belal Muhammad 
Promotion: UFC
Previous ranking: 1
Record: 24-4, 1 NC
Last: L (UD) vs. Jack Della Maddalena, May 10
Next: TBD
3. Shavkat Rakhmonov
Promotion: UFC
Previous ranking: 2
Record: 19-0
Last: W (UD) vs. Ian Machado Garry, Dec. 7
Next: TBD
4. Sean Brady
Promotion: UFC
Record: 18-1
Last: W (Sub4) vs. Leon Edwards, March 22
Next: TBD
5. Joaquin Buckley
Promotion: UFC
Record: 21-6
Last: W (TKO3) vs. Colby Covington, Dec. 14
Next: June 14 vs. Kamaru Usman
6. Leon Edwards
Promotion: UFC
Record: 22-5, 1 NC
Last: L (Sub4) vs. Sean Brady, March 22
Next: TBD
7. Ian Machado Garry
Promotion: UFC
Record: 16-1
Last: W (UD) vs. Carlos Prates, April 26
Next: TBD
8. Gilbert Burns
Promotion: UFC
Record: 22-8
Last: L (UD) vs. Sean Brady, Sept. 7
Next: May 17 vs. Michael Morales
9. Geoff Neal
Promotion: UFC
Record: 16-6
Last: W (TKO1) vs. Rafael Dos Anjos, Oct. 26
Next: TBD
10. Colby Covington
Promotion: UFC
Record: 17-5
Last: L (TKO3) vs. Joaquin Buckley, Dec. 14
Next: TBD
LIGHTWEIGHT (up to 155 pounds)
1. Islam Makhachev
Promotion: UFC champion
Record: 27-1
Last: W (Sub1) vs. Renato Moicano, Jan. 18
Next: TBD vs. Jack Della Maddalena
2. Arman Tsarukyan
Promotion: UFC
Record: 22-3
Last: W (SD) vs. Charles Oliveira, April 13, 2024
Next: TBD
3. Charles Oliveira
Promotion: UFC
Record: 35-10, 1 NC
Last: W (UD) vs. Michael Chandler, Nov. 16
Next: June 28 vs. Ilia Topuria
4. Justin Gaethje
Promotion: UFC
Record: 26-5
Last: W (UD) vs. Rafael Fiziev, March 8
Next: TBD
5. Dustin Poirier
Promotion: UFC
Record: 30-9, 1 NC
Last: L (Sub5) vs. Islam Makhachev, June 1
Next: July 19 vs. Max Holloway
6. Paddy Pimblett
Promotion: UFC
Record: 23-3
Last: W (TKO3) vs. Michael Chandler, April 12
Next: TBD
7. Dan Hooker
Promotion: UFC
Record: 29-12
Last: W (SD) vs. Mateusz Gamrot, Aug. 17
Next: TBD
8. Renato Moicano
Promotion: UFC
Record: 20-6-1
Last: L (Sub1) vs. Islam Makhachev, Jan. 18
Next: June 28 vs. Beneil Dariush
9. Usman Nurmagomedov
Promotion: Bellator champion
Record: 19-0, 1 NC
Last: W (MD) vs. Paul Hughes, Jan. 25
Next: TBD
10. Mateusz Gamrot
Promotion: UFC
Record: 24-3, 1 NC
Last: L (SD) vs. Dan Hooker, Aug. 17
Next: May 31 vs. Ludovit Klein
FEATHERWEIGHT (up to 145 pounds)
1. Ilia Topuria
Promotion: UFC
Record: 16-0
Last: W (KO3) vs. Max Holloway, Oct. 26
Next: June 28 vs. Charles Oliveira
2. Alexander Volkanovski
Promotion: UFC champion
Record: 27-4
Last: W (UD) vs. Diego Lopes, April 12
Next: TBD
3. Max Holloway
Promotion: UFC
Record: 26-8
Last: L (KO3) vs. Ilia Topuria, Oct. 26
Next: July 19 vs. Dustin Poirier
4. Yair Rodriguez
Promotion: UFC
Record: 16-5, 1 NC
Last: W (UD) vs. Patricio Pitbull, April 12
Next: TBD
5. Diego Lopes
Promotion: UFC
Record: 26-7
Last: L (UD) vs. Alexander Volkanovski, April 12
Next: TBD
6. Brian Ortega
Promotion: UFC
Record: 16-4, 1 NC
Last: L (UD) vs. Diego Lopes, Sept. 14
Next: TBD
7. Movsar Evloev
Promotion: UFC
Record: 19-0
Last: W (UD) vs. Aljamain Sterling, Dec. 7
Next: TBD
8. Lerone Murphy
Promotion: UFC
Record: 16-0-1
Last: W (UD) vs. Josh Emmett, April 5
Next: TBD
9. Patricio Pitbull
Promotion: UFC
Record: 36-8
Last: L (UD) vs. Yair Rodriguez, April 12
Next: TBD
10. Arnold Allen
Promotion: UFC
Record: 20-3
Last: W (UD) vs. Giga Chikadze, July 27
Next: TBD
MEN'S BANTAMWEIGHT (up to 135 pounds)
1. Merab Dvalishvili
Promotion: UFC champion
Record: 19-4
Last: W (UD) vs. Umar Nurmagomedov, Jan. 18
Next: June 7 vs. Sean O'Malley
2. Sean O'Malley
Promotion: UFC
Record: 18-2, 1 NC
Last: L (UD) vs. Merab Dvalishvili, Sept. 14
Next: June 7 vs. Merab Dvalishvili
3. Petr Yan
Promotion: UFC
Record: 18-5
Last: W (UD) vs. Deiveson Figueiredo, Nov. 23
Next: TBD
4. Umar Nurmagomedov
Promotion: UFC
Record: 18-1
Last: L (UD) vs. Merab Dvalishvili, Jan. 18
Next: TBD
5. Cory Sandhagen
Promotion: UFC
Record: 18-5
Last: W (TKO2) vs. Deiveson Figueiredo, May 3
Next: TBD
6. Mario Bautista
Promotion: UFC
Record: 15-2
Last: W (SD) vs. José Aldo, Oct. 5
Next: June 7 vs. Marlon Vera
7. Song Yadong
Promotion: UFC
Record: 22-7-1, 1 NC
Last: W (TechDec) vs. Henry Cejudo, Feb. 22
Next: TBD
8. Deiveson Figueiredo
Promotion: UFC
Record: 24-5-1
Last: L (TKO2) vs. Cory Sandhagen, May 3
Next: TBD
9. Patchy Mix
Promotion: None
Previous ranking: 10
Record: 20-1
Last: W (SD) vs. Magomed Magomedov, May 17, 2024
Next: TBD
10. Henry Cejudo
Promotion: UFC
Previous ranking: Unranked
Record: 16-5
Last: L (TechDec) vs. Song Yadong, Feb. 22
Next: TBD
MEN'S FLYWEIGHT (up to 125 pounds)
1. Alexandre Pantoja
Promotion: UFC champion
Record: 29-5
Last: W (TechSub2) vs. Kai Asakura, Dec. 7
Next: June 28 vs. Kai Kara-France
2. Brandon Royval
Promotion: UFC
Record: 17-7
Last: W (SD) vs. Tatsuro Taira, Oct. 12
Next: June 28 vs. Manel Kape
3. Brandon Moreno
Promotion: UFC
Record: 23-8-2
Last: W (UD) vs. Steve Erceg, March 29
Next: TBD
4. Kai Kara-France
Promotion: UFC
Record: 25-11, 1 NC
Last: W (TKO1) vs. Steve Erceg, Aug. 17
Next: June 28 vs. Alexandre Pantoja
5. Muhammad Mokaev
Promotion: Brave CF
Record: 14-0,1 NC
Last: W (Sub1) vs. Joevincent So, Dec. 13
Next: TBD
6. Tatsuro Taira
Promotion: UFC
Record: 16-1
Last: L (SD) vs. Brandon Royval, Oct. 12
Next: TBD
7. Manel Kape
Promotion: UFC
Record: 21-7
Last: W (TKO3) vs. Asu Almabayev, March 1
Next: June 28 vs. Brandon Royval
8. Steve Erceg
Promotion: UFC
Record: 12-4
Last: L (UD) vs. Brandon Moreno, March 29
Next: TBD
9. Kai Asakura
Promotion: UFC
Record: 21-5
Last: L (TechSub2) vs. Alexandre Pantoja, Dec. 7
Next: TBD
10. Alex Perez
Promotion: UFC
Record: 25-9
Last: L (TKO2) vs. Tatsuro Taira, June 15
Next: TBD
WOMEN'S BANTAMWEIGHT (up to 135 pounds)
1. Julianna Peña
Promotion: UFC champion
Record: 12-5
Last: W (SD) vs. Raquel Pennington. Oct. 5
Next: June 7 vs. Kayla Harrison
2. Raquel Pennington
Promotion: UFC
Record: 16-9
Last: L (SD) vs. Julianna Peña, Oct. 5
Next: TBD
3. Kayla Harrison
Promotion: UFC
Record: 18-1
Last: W (UD) vs. Ketlen Vieira, Oct. 5
Next: June 7 vs. Julianna Peña
4. Ketlen Vieira
Promotion: UFC
Record: 14-4-1
Last: L (UD) vs. Kayla Harrison, Oct. 5
Next: May 31 vs. Macy Chiasson
5. Holly Holm
Promotion: GFL
Record: 15-7, 1 NC
Last: L (Sub2) vs. Kayla Harrison, April 13, 2024
Next: TBD
6. Norma Dumont
Promotion: UFC
Record: 12-2
Last: W (UD) vs. Irene Aldana, Sept. 14
Next: TBD
7. Irene Aldana
Promotion: UFC
Record: 15-8
Last: L (UD) vs. Norma Dumont, Sept. 14
Next: TBD
8. Macy Chiasson
Promotion: UFC
Record: 10-3
Last: W (TKO2) vs. Mayra Bueno Silva, June 29
Next: May 31 vs. Ketlen Vieira
9. Ailin Perez
Promotion: UFC
Record: 12-2
Last: W (UD) vs. Karol Rosa, Jan. 18
Next: TBD
10. Karol Rosa
Promotion: UFC
Record: 18-7
Last: L (UD) vs. Ailin Perez, Jan. 18
Next: TBD
WOMEN'S FLYWEIGHT (up to 125 pounds)
1. Valentina Shevchenko
Promotion: UFC champion
Record: 25-4-1
Last: W (UD) vs. Manon Fiorot, May 10
Next: TBD
2. Manon Fiorot
Promotion: UFC
Previous ranking: 3
Record: 12-2
Last: L (UD) vs. Valentina Shevchenko, May 10
Next: TBD
3. Natalia Silva
Promotion: UFC
Previous ranking: 6
Record: 19-5-1
Last: W (UD) vs. Alexa Grasso, May 10
Next: TBD
4. Erin Blanchfield
Promotion: UFC
Record: 13-2
Last: W (UD) vs. Rose Namajunas Nov. 2
Next: May 31 vs. Maycee Barber
5. Dakota Ditcheva
Promotion: PFL champion
Record: 14-0
Last: W (TKO2) vs. Taila Santos, Nov. 29
Next: July 26 vs. Sumiko Inaba
6. Alexa Grasso
Promotion: UFC
Previous ranking: 2
Record: 16-5-1
Last: L (UD) vs. Natalia Silva, May 10
Next: TBD
7. Jasmine Jasudavicius
Promotion: UFC
Previous ranking: Unranked
Record: 14-3
Last: W (Sub1) vs.Jessica Andrade, May 10
Next: TBD
8. Taila Santos
Promotion: PFL
Previous ranking: 7
Record: 22-4
Last: L (TKO2) vs. Dakota Ditcheva, Nov. 29
Next: TBD
9. Liz Carmouche
Promotion: PFL / Bellator champion
Previous ranking: 8
Record: 23-8
Last: W (TKO1) vs. Ilara Joanne, April 11
Next: June 20 vs. Elora Dana
10. Rose Namajunas
Promotion: UFC
Record: 14-7
Last: L (UD) vs. Erin Blanchfield, Nov. 2
Next: June 14 vs. Miranda Maverick
STRAWWEIGHT (up to 115 pounds)
1. Zhang Weili
Promotion: UFC champion
Record: 26-3
Last: W (UD) vs. Tatiana Suarez, Feb. 8
Next: TBD
2. Virna Jandiroba
Promotion: UFC
Record: 22-3
Last: W (UD) vs. Yan Xiaonan, April 12
Next: TBD
3. Yan Xiaonan
Promotion: UFC
Record: 18-5, 1 NC
Last: L (UD) vs. Virna Jandiroba, April 12
Next: TBD
4. Amanda Lemos
Promotion: UFC
Record: 15-4-1
Last: W (UD) vs. Iasmin Lucindo, March 8
Next: TBD
5. Tatiana Suarez
Promotion: UFC
Record: 11-1
Last: L (UD) vs. Zhang Weili, Feb. 8
Next: TBD
6. Mackenzie Dern
Promotion: UFC
Previous ranking: 7
Record: 15-5
Last: W (Sub3) vs. Amanda Ribas, Jan. 11
Next: TBD
7. Gillian Robertson
Promotion: UFC
Previous ranking: 8
Record: 16-8
Last: W (TKO2) vs. Marina Rodriguez, May 3
Next: TBD
8. Amanda Ribas
Promotion: UFC
Previous ranking: 9
Record: 13-6
Last: L (Sub3) vs. Mackenzie Dern, Jan. 11
Next: TBD
9. Loopy Godínez
Promotion: UFC
Previous ranking: 10
Record: 13-5
Last: W (UD) vs. Julia Polastri, March 29
Next: TBD
10. Iasmin Lucindo
Promotion: UFC
Previous ranking: Unranked
Record: 17-6
Last: L (UD) vs. Amanda Lemos, March 8
Next: TBD