Shana Dobson scored one of the biggest upsets in the UFC history Saturday night and, in the process, cost somebody a lot  of money. Dobson, who entered UFC on ESPN 15 as a +800 underdog, defeated massive favorite Mariya Agapova by second-round TKO   Just how big of a favorite was Agapova? As high as -1400. To put that into perspective, you’d have needed to bet $1,400 on Agapova to make $100 had she won. But get this: According to sports business reporter Darren Rovell, a bettor placed a $25,000 bet on Agapova at those -1400 odds all so he/she could make … a whopping $1,775. Seriously ( via Twitter ): In the women’s UFC flyweight division tonight, a bettor at @SuperBookSports bet $25,000 on heavy favorite (-1400) Mariya Agapova.