In the Randy fight versus Ricco, it came out after the fight that Randy had won the first 3 rounds on all 3 of the Judges score cards. Some may have even given him a 10-8 in the second round.
Ricco won, and was winning rounds 4 and 5 -- but as 10-9s and definitely not 10-8s. If the fight had gone on for 3 more minutes, Couture would have almost certainly lost the 5th round, but by UFC scoring, still have won the fight.
Ricco won by forcing a verbal submission, after an elbow strike directly to the eye, causing Randy's orbital bone to shatter. THIS WAS AN ILLEGAL STRIKE (at least at the time), but BJM didn't call Ricco on it, and Rodriguez was awarded the win. If he hadn't used that illegal tactic, Randy would have won; and if BJM had called him on it, with Randy unable to continue after the damage was done, you would have likely had a Frank Shamrock/Renzo Gracie scenario. It wasn't called, though, and Ricco got the win.
I don't knock Ricco on this, because he fought his heart out, and it was one of his best wins ever that really showed he was a champion. Its also not the easiest call for the ref, because elbow strikes to the face are allowed. However you are not allowed to directly attack the eye ball itself with something that can fit in it (i.e fingers, Chack thumb, elbow), which is pretty much what that finishing strike was.
Anyways, its not that big of a deal, considering Randy didn't complain, and Ricco still proved a lot in that fight.
The point is just that Randy has just had a lot of poor luck when it comes to his losses