One are two out.

I have hunted like that a lot in the past. Still do with a couple of plots. Some of my curs & plotts are so gritty, they will catch anything with another dog with them. I put them by their selves & they will bay a bad hog until another dog gets there or the bulldog. I have a couple here that has not quite figured out what they can handle yet. They will either learn or they will die. Just the way it is.
I do not believe there is a dog out there that can stay caught on a bad boar by theirselves for say 10 minutes. We have thickets so bad, just like all parts of the country, it might take you 10 minutes to go 50 yards. Now I dont want to hear ole so & so had this bad boar hog caught for 20 minutes by their self. There are exceptions to every scenario, but the simple fact is, if a dog catches a bad hog, he is going to need help, either human or another dog.