I suggest removing the conclusion of your logline. If we know that her horse wins and saves her family from financial turmoil then it spoils the read, at least for me.
The page count is 102 but the PDF says 218 and I can see why. It looks as if it were written in Word so I suggest downloading a screenplay writing software such as trelby (it's free), rewriting the story there and upload the new version. As is, it's not properly formatted thus unlikely to get reviewed. Best of luck.