Also, not if she only bet a few dollars being that she already had the lead and just needed to hope she maintained it...
-He knew the #1 would bet enough so that if she was right she would beat him. So his only hope of winning is if she was wrong. But since he could be wrong too, he had to bet little enough so that she would have less than him if they were both wrong.
-He knew he had to watch out for #3, so he bet enough to make sure that #3 couldn't catch him even if he bet everything and got it right, as long as James got it right.
But #1 got it right and of course she bet enough so that she could not be caught even if James bet everything.
The end