Kambi's oddsmakers have priced up a market where clients of the websites that publish the group's WWE betting odds can have a wager on the outright winner of the January battle royal.
Next on the list, in second-favourite, is Asuka at 2/1 with Nia Jax (5/1), Becky Lynch (15/2), Paige (15/2) following all the way down to James Ellsworth and Santino Marella - who are 100/1 apiece.
Rousey also leads a market where customers can have a punt on the 'Last Official Participant To Enter The Match'.
If the MMA star is the final entrant on January 28th, the oddsmakers will settle at a price of 5/4.
Other names in this market are: Alexa Bliss (4/1), Nikki Bella (5/1), Brie Bella (13/2), Charlotte Flair (13/2) all the way down - once again - to Ellsworth and Marella (both 66/1).
The markets can be found alongside other WWE and NJPW match and specials markets on the websites that publish Kambi pricing. A couple of examples can be found below.