Now the goal will be avoiding one before he swims for gold tomorrow morning.
Clareburt (23) is primed to continue his emergence as New Zealand’s new hope in the pool, his favoured 400m individual medley beginning a four-event programme in Birmingham.
But unlike at last year’s Tokyo Olympics, when he stormed into the final but was undone by an ill-timed night of tossing and turning, Clareburt believes he is perfectly placed to add to the bronze medal he claimed on the Gold Coast.
"I’m confident with the work I’ve put in since the last Commonwealth Games," he said. "I’m 5sec faster than I was going into the last Games, so I think that’s exciting.
"I do feel like I belong here, among the best athletes in the world. I’m pretty confident and as an athlete if you want to perform well you have to have confidence.
"That’s where I think it starts, so I’m happy I have the confidence that I can perform well on the world stage."
That self-belief was certainly clear in Tokyo, where Clareburt qualified for the 400 IM final with the second-fastest time. If he had repeated that swim the next day, it would have been good enough for the silver medal, but Clareburt was unable to follow his race plan.
Watching from the stands as his star pupil failed to find his typical acceleration in the latter stages, coach Gary Hollywood knew something was wrong.
"I could see when he came out for the final, he was dishevelled," Hollywood said.
"He was where he needed to be, in the silver-medal position with 25m to go, but he couldn’t go to that next gear.
"He didn’t slow down — he swam the same split on the last 50 as the first 50, but our race is to swim faster in that last 50, and he just didn’t have the energy to do it."
Unbeknown to his coach, sleeping soundly in the adjacent room, Clareburt found himself wide awake for much of the night.
Clareburt finished fourth in the 400 IM at last month’s world championships in Hungary, despite having his preparations disrupted by Covid, and recorded the fastest time of a Commonwealth swimmer.
After a training camp in Mallorca that he described as "one of the best months of my life", Clareburt is ready to reward a public that was captivated by his Olympic efforts — and ready to put in a performance that will leave him sleeping soundly in satisfaction.
By Kris Shannon