Zheleznyakova has atrocious takedown defense and a very hard time getting back to her feet when taken down. If Jojua is able to take her down, which is a big if, I do see her being able to submit Dariya. I bet Zheleznyakova at +175 but I think the line has risen enough that it now is approximately at an accurate reflection of each fighters chances of winning.
This fight in particular scared me off of Zheleznyakova.
I also watched an interview where Tenekah talked about being asthmatic and diabetic. Until we visibly see Tenekah demonstrating an ability to fight competitively outside the first round I would pass on her. Asthmatic's can appear totally normal on the feet early in a fight but once grappling ensues their energy reserves can be depleted in less than a minute.