With a weight limit of 102lbs the Atomweight division is the lowest in professional boxing and one only competed in by female fighters. In fact more interesting than just that is that only the WBA and WBC seem to really recognise the division and even Boxrec don't seem that willing to recognise it's existence.
Of the two recognised Atomweight champions it's the WBC champion Momo Koseki (16-2-1, 4) that has the longest and most defined reign.
Since winning the title in 2008 with a stoppage over Winyu Paradorn Gym of Thailand, Koseki has defended her title an impressive 10 times. She now looks for defense #11.
In the opposite corner to Koseki is Mexico's Nora Cardoza (8-4-2, 4), a fighter fighting in her first world title fight and a fighter looking for her first serious victory.
With 16 fights on her record Cardoza hasn't faced too many "name" fighters, and when she has, she's lost. This has seen her being stopped by Jessica Chavez and being out pointed by Jasseth Noriega, her only two high profile opponents.
If we compare Cardoza's record to that of Koseki things are very much one sided. Koseki has more world title fight victories than Cardoza has total victories and whilst they haven't come against great names they have come against credible opponents. Not only has she stopped Winyu Paradorn Gym but she has also beaten Nao Ikeyama, Teeraporn Pannimit, Saemi Hanagata and most recently Eun-Young Huh, all around the same "proven" level as Cardoza.
What's more impressive than Koseki's record is her skill level. She is incredibly talented. Sure she has two losses on her record, coming in her 4th and 5th contests, but both were narrow losses away in Thailand, both in bouts that many felt Koseki was robbed of. She's talented, tough, has great work rate and shows that female fighters can be genuinely skilled. Something that we can't really say about Cardoza.
With what we know about both fighters we really favour Koseki, arguably the best 102lb fighter on the planet to not only defeat Cardoza but also look to force a stoppage. It may come, it may not but there is every chance that Koseki will look to make a statement with WBA champion Ayaka Miyao defending her title just a few weeks after this contest.