The modus of these cheaters is that they paired battlecocks during a fight, they already know which cock will win and the management of the betting site will notice this as there is a spike in the betting, meaning that during the fight of the "paired cocks" millions of pesos was placed to the supposed to be the winning cock. Hard to explain and also hard to get if you are not into cockfighting.
So the odds are supposed to be even for all fights? That would explain why they can't shift the odds to offset the incoming bets.
I've never actually bet on a cockfight but I remember seeing "e-sabong" as its own section tucked away on a few different gambling apps, like they are trying to hide that its part of the app; usually you just pick Red or Blue and hope for the best... about as random as a coin flip, or so it seems...
All the odds in e-sabong are not even because the owner of the betting website takes a percentage. You are right, in e-sabong they use red and blue as the colors. The cheaters, if they want the blue to win, will bet on it. Even if the odds are only 1.5, if you bet 10 million pesos, you will get back 15 million pesos, which is a lot of money in the Philippines.
Cockfighting is as random as a coin flip if you are not familiar with the type of rooster. When you watch it on the monitor, they look the same. The way cheaters make the rooster they want to win is by putting a dull blade on the losing rooster, which the management of the betting website won't notice.
There is a lot of cheating in cockfighting, so if you are caught cheating, your life is in danger, but I do not agree with what they do to the cheating sabungeros."