Odds given by a match depends on how the house edge handles winrate. For instance for some the odds can be slightly higher in other platforms from what i've experienced. Your technique is doable but this type of bets can be risky according to the photo shown above. What site are you betting on, by the way?
It's most likely based on the odds provider, I don't see a house edge here since its a sports betting where the bookies facilitate the bets and just take the commission, you as a gambler are not betting against the house, but against a bettor who bet the opposite of your bet.