Du Plessis' superb knock of 134 runs and his 205-run partnership with AB de Villiers set South Africa up for a world record win but they fell short by eight runs while chasing a 458-tun target, settling for a dramatic draw on Sunday. (Agencies)
"This morning a lot of people wrote us off and the character that we have shown to pull this off, I am very satisfied with the result," he said.
His third Test hundred came in the post-tea session, when South Africa set themselves up for the win. But then AB de Villiers got out and du Plessis himself was run-out, changing the complexion of the game.
"I was batting very well until the hundred, but then emotion took over me. There was a lot of work to be done and we would have liked to win the game and be part of the best Test match ever.
"But I am very satisfied. We did something similar in Australia and then we turned the momentum around, so we can hope for the same here," du Plessis said.
He was referring to the Proteas' 2012-13 tour of Australia, where they saved the Test in Adelaide thanks to his hundred scored over four and a half sessions. Later, at Perth, they defeated Australia.
"We drew a lot of experience from that Adelaide game. I batted for a long time there and then I realised that I could actually bat for so long in a Test match. Obviously, the conditions there were different.
"In Australia, the ball doesn't seem as much and this pitch was harder. I wanted to see through the new ball, that was vital for us and I am happy we were able to do that and set ourselves up in the final session," he said.
Du Plessis' superb knock of 134 runs and his 205-run partnership with AB de Villiers set South Africa up for a world record win but they fell short by eight runs while chasing a 458-tun target, settling for a dramatic draw on Sunday.