An exhausted Matthew Wade was glad to get over the line and secure his first one-day international century as Australia defeated Pakistan by 92 runs at the Gabba.
The wicketkeeper-batsman walked to the middle with his side struggling on 78-5 in Friday's series opener but restored some calm along with Glenn Maxwell (60).
Wade reached three figures by squeezing a single from the final ball of the innings, Australia's 268-9 proving too much for Pakistan, who fell to 176 all out.
And Wade admitted to feeling fatigued as he neared the landmark.
"I was absolutely cooked," he said. "They were taking the pace off. I was swinging way too hard. If the spinners bowled into the wicket it was hard to hit them down the ground.
"It feels great. It was challenging at the top, it was swinging and seaming around. Maxi [Maxwell] took the pressure off me, and I was just looking to get him on strike."
Captain Steve Smith was removed first ball by Mohammad Amir as the hosts struggled in the opening overs.
"It was a pretty average start," said Smith. "We were in a bit of a hurry, to be fair. I thought Matthew Wade played an exceptional innings.
"270 was around par, it was a bit of a slow wicket. We bat all the way down. [Mitchell] Starcy is batting at number 10 at the moment. We've got a long order. If we come off we're going to make some big scores.
"We need to be a bit smarter at the top. We bowled good areas all night, took the pace off well, and got the job done."
Pakistan's captain Azhar Ali was forced to retire hurt in the early stages of their reply after appearing to be in pain following a single. He did return later in the innings but is unsure whether he will be fit for the second ODI in Melbourne on Sunday.
"It's a bit sore, but hopefully it will recover soon," he said. "The physio will have a better look and see how far I can get. Hopefully I can take part in the next game.
"I think full credit to the bowlers, first half it was very good, but obviously credit goes to Matthew Wade the way he batted.
"We thought from five down for 78 we can get them out early, but unfortunately it didn't happen. It was still chaseable but we needed to have good partnerships up front."