English No. In the classical sense, it is not. Since arbitrage is the situation in which a player, with 100% certainty, at least does not lose the arbitrage bet, but in most cases makes a good profit.
PolishMiddles make it possible for a unified, albeit unlikely, outcome to occur, which can reduce the player's bankroll. More about this can be read in the article about PolishMiddle.
Why are we telling you about this on our website?
That is clear - Polish Middles are formed according to the same principles as conventional middles, where several events intersect in different directions, giving the player the opportunity to earn 5 to10 times more (on average, there are distortions) than to lose.
This procedure, although not absolute in terms of reliability, is potentially very lucrative. And if you know how to look for Polish Middles (we do indeed), you can make good money from them.