Probably the longest match I've ever played in Smackdown vs RAW 2007 was for my created Extreme Championship title. I was playing as The Rock (C), defending the title in a First Blood match against Bam Bam Bigelow. I'm not sure if this is a glitch or not, but the match went on for well over an hour and no blood was spilled. Both of our body meters were completely red and fully damaged. I hit him with everything I had to try and bust him open. I hit him with steel chairs, barbed wire bats and even DDT'd him several times through a table, but Bigelow would not spill any blood.
Well over an hour into the match, I finally figured out how to bust him open. You see, you can mount him and punch him in the face, but if you press up + circle, he won't bust open. You have to press down + circle, as if you're going to pin him. So regardless of how many times you hit your opponent in the face, the trick is to use the controls as if you're pinning him to bust him open. I was unaware of this, therefore the match went on for like 80 minutes lol