I don't think so. I couldn't really find any proper source for them being different, but I looked up both of their websites in simplywhois, and Betking.com is a LOT older than Betking.io. Betking.com was made back in 2001 and .io was made in 2015. If we were to consider Betking.io using another domain to avoid their mess back then, then shouldn't be the .com site younger? Well, there's a chance that Betking.com made Betking.io for purely crypto transactions/bettings but that would also be questionable since I see no need to actually separate them.
I also found this
We are looking to raise investment so we can develop more products including our own provably fair casino games such as blackjack, slots and roulette.
Funds will also go towards developing a sports betting platform, poker software as well as a host of other gambling related products and services.
It was in the Betking.io ANN thread, and if it says that they're just going to develop a sports betting platform, doesn't that mean that it really isn't them?
We don't know how good and popular
betking.com compare to
betking.io, but if one site becomes popular, it will be normal if someone wants to create a website by using almost similar domain with the real website to trick people out there. With the logo that is almost the same, people can get scam by the fake site because some people will not check if that site is real or not.
If a website can become a sponsor to one local event, and that is related to many people and companies, I think that website will not try to scam them because it will relate to the website's reputation. If Betking.com wants to make something different from the other site, I think they will not try to do something bad. Perhaps, the other even sponsor or the event organizer will recheck everything before they continue the event, and they will make something if they found a mistake or sign of the scam. We will see it later.