His side now have just 11 matches to claw themselves off the bottom of the table and out of trouble.
Seven points currently separate them from safety but Redknapp still believes his side can stay up.
"I thought we were bang in the game," the Rs boss said. "The little right-back hits a 'worldie' - he won't hit another goal like that as long as he plays football.
"He's hit one out of the clouds that's gone in the top corner. Up until then there wasn't a lot in it.
"This leaves us bottom today, but we won't be bottom at the end of the season. I still feel we'll get out of it.
"Every game is important, they will be tough games.
"We need to get a team together on Monday, bed them in and work with them, and I think there's enough there to give us an opportunity. I'm still optimistic.
"You probably think I'm mad, but I don't think I am. Everybody else has written us off, but I haven't. I still feel we have a chance."