~snip~
Nothing to say about that' as there are many people who mistakenly think that they can continue the wins and they are already have the winning patterns, and instead of quitting for good, they will continue and try playing more. We really can't tell what's the reason behind they just wanted t make more money and greed already conquer their mindsets.
You said it right. They think that by continuing to play, they still have a chance to win, especially if they can use more capital because the wins they will get are big. But they should do some self-reflection before betting on sports to see if they are making the profits they want. If not, they must stop immediately before it's too late because the gambling business is fast, so if you decide late, it will be difficult for you to make a profit.