There was match fixing in the US before legalization. In fact, the US is one of the only places where you have had major sports events being fixed due to gambli

There was match fixing in the US before legalization. In fact, the US is one of the only places where you have had major sports events being fixed due to gambling, despite gambling being legal in many other places. One of the greatest incentives to stop match fixing comes from having regulated operators who will report unusual betting behaviour. For example, the massive problems with match-fixing in low-ranked tennis has been tackled by bookmakers. There is an issue with advertising but that is unrelated to the match-fixing one. The latter is one of the absolute oldest lobbying lines the Republicans used when they were getting all their money from Adelson (it was accompanied with some mad intellectual gymnastics about how sports betting at casinos was also magically unaffected by this, same with underage gambling).