I don't think so that there's a trick in esports betting. I'm always betting in underdog team, that can go along with the game play of the other team. Why? Because I like to take the greater risk to get high return.
How has that turned out to be so far? I think on average only 2 of 10 situations that underdogs in any fixture wins. I haven't tried betting that that kinda risk before. It's more like throwing money away without the slightest hope of getting it back.
For me, I just like toying with lower risk. I even double chance of the top dogs to win just to be on the safer side. Well, My success rate has improved significantly even if the rewards aren't much.
Esport betting is not only about Win and Lose. Let see DotA betting for example, there's many type of betting here not only Win or Lose. for example we can also bet for total kill for each team, Aegis, Barrack and many more.