More importantly, is it possible to bet on a draw at all?
I think he is pertaining for draw in regular time not included the OT since this is possible in basketball.
Yeah but games that go in overtime have clearly the two options available, he couldn't have taken an x on full time:

So this case which there is no OT, even assuming he didn't know the rules would it have been possible to bet on exactly this game on a draw for full results? I assume that his only option was a draw specifically saying before Target Time.
There is no match for that league available to check but I'm sure he's asking about an impossible bet.