Forrest was not backing up just as much. I watched the fight a couple of times.
In the close rounds (3 and 5 specifically) he was the one coming forward. Yes he would back up at times to get away from Rampage's nasty power, but for the most part he was being the more aggressive fighter and moving at Rampage. In round 5 it was not until their was like 1 min left that Rampage realized that he better do something quick and started to go after Forrest. Too little to late. I think by that time Forrest had already won the round.
I think he kept thinking he needed to stay back away from the leg kicks and he would catch Forrest again and KO him and that is why he was less aggressive. That ended up being a bad decision if it was what he was thinking.:2cents: