ESPN's women's pound-for-pound rankings

Who is the world's best women's mixed martial artist, regardless of weight class? My latest top-10 ranking is listed below.

In addition, here is my men's pound-for-pound ranking.

Note: Results through March 5, 2018.

= champion

Cris Justino

1. Cris Justino
Record: 20-1
Div.: Featherweight (Invicta FC/UFC)
Last: W (TKO1) Yana Kunitskaya, March 3, 2018
Next: TBD

Cyborg faced one of the most difficult challenges of her career in Holly Holm, to close out 2017. She opened 2018 with a much easier foe -- former Invicta FC bantamweight champion Yana Kunitskaya. That resulted in a first-round finish. A potential super fight against Amanda Nunes looms.

Amanda Nunes

2. Amanda Nunes
Record: 15-4
Div.: Bantamweight (UFC)
Last: W (SD) Valentina Shevchenko, Sept. 9, 2017
Next: TBD

It's been an up-and-down year for Nunes, coming off a 2016 campaign that saw her dominate the likes of Miesha Tate and Ronda Rousey. She was forced to pull out of UFC 213 in July, but came back to defend her title against Valentina Shevchenko.

Joanna Jedrzejczyk

3. Joanna Jedrzejczyk
Record: 14-1
Div.:L (KO1)
Rose Namajunas, Nov. 4, 2017
Last: L (TKO1) Rose Namajunas, Nov. 4, 2017
Next: UFC 223 on April 7, vs. Rose Namajunas

Jedrzejczyk's perfect record came crashing down in November, when she was quickly upset by Rose Namajunas at UFC 217. That one result does little to her standing as one of the best women in the world, but it will of course be interesting to see how she rebounds from such a devastating experience.

Valentina Shevchenko

4. Valentina Shevchenko
Record: 15-3
Div.: Bantamweight (UFC)
Last: W (Sub2) Valentina Shevchenko, Feb. 3, 2018
Next: TBD

Shevchenko's only two losses in the UFC were to Amanda Nunes, and the rematch was arguably too close to call. Since that loss in 2017, Shevchenko has moved down to the 125-pound weight class and looked absolutely outstanding in a win over Priscila Cachoeira in February. Many are pegging her the future UFC flyweight champ.

Rose Namajunas

5. Rose Namajunas

Record: 7-3
Div.: Strawweight (UFC)
Last: W (KO1) Joanna Jedrzejczyk, Nov. 4, 2017
Next: UFC 223 on April 7, vs. Joanna Jedrzejczyk

Namajunas gave the performance of a lifetime at UFC 217 -- not just beating Joanna Jedrzejczyk but decimating her in the first round. She immediately has an entire division nipping at her heels, not to mention Jedrzejczyk, but if she fights like she did in New York, it won't be a problem.

Jessica Andrade

6. Jessica Andrade
Record: 18-6
Div.: Strawweight (UFC)
Last: W (UD) Tecia Torres, Feb. 24, 2018
Next: TBD

Andrade is right back in line for a UFC title shot, just two fights removed from her decision loss to Joanna Jedrzejczyk in 2017. Convincing wins against Claudia Gadelha and Tecia Torres have her knocking on that UFC championship door once again.

Claudia Gadelha

7. Claudia Gadelha
Record: 15-3
Div.: Strawweight (UFC)
Last: L (UD) Jessica Andrade, UFC Fight Night on Sept. 22
Next: TBD

Prior to September, Gadelha's reputation was basically she could beat any strawweight in the world besides Joanna Jedrzejczyk. That is no longer the case, as she dropped a three-round decision to Jessica Andrade. We'll see where she goes from here.

Raquel Pennington

8. Raquel Pennington
Record: 9-5
Div.: Bantamweight (UFC)
Last: W (UD) Miesha Tate, Nov. 12, 2016
Next: TBD

Pennington has flown under the radar in the UFC's 135-pound division, and she's scheduled to miss a good chunk of 2017 for shoulder surgery. But her only losses in the UFC have been razor-thin decisions to Jessica Andrade and Holly Holm. She's on the cusp of breaking through to a title shot.

Karolina Kowalkiewicz

9. Karolina Kowalkiewicz
Record: 11-2
Div.: Strawweight (UFC)
Last: W (UD) Jodie Esquibel, Oct. 21, 2017
Next: UFC 223 on April 7, vs. Felice Herrig

Kowalkiewicz snapped the first losing skid of her career by absolutely dominating Jodie Esquibel -- and she got to do so in her native Poland. She's come up short against Joanna Jedrzejczyk and Claudia Gadelha, but it seems likely she'll earn future rematches with them.

Germaine de Randamie

10. Germaine de Randamie
Record: 7-3
Div.: Featherweight (UFC)
Last: W (UD5) Holly Holm, Feb. 11, 2017
Next: TBD

De Randamie remains in the top 10 pound-for-pound rankings, despite being stripped of her UFC featherweight title. She says she's headed back to bantamweight, after refusing to face Cris Justino. And her image is in need of rebuilding.