Alex de Minaur has hailed his backs-to-the-wall triumph at the French Open against an inspired big-hitting opponent and in the face of another mentally draining rain delay as one of his very best.
The Australian survived a hail of winners from powerhouse Jan-Lennard Struff but emerged the stronger after a four-and-a-half hour stoppage to win 4-6 6-4 6-3 6-3 on Saturday, becoming the first Australian man for 17 years to reach the singles last-16 since his Davis Cup captain Lleyton Hewitt.
And at the end of a match that took over eight hours to complete, de Minaur reckoned he had discovered "gold at the end of the tunnel".
After yet another late-night thriller, though, Thanasi Kokkinakis was unable to make it two Australian men into the fourth round for the first time since 2001 when his brave effort at a third five-set comeback in five days fell just short in a dramatic 6-3 6-2 6-7 (4-7) 5-7 6-3 defeat to American 12th seed Taylor Fritz.
It meant that, yet again, de Minaur is the last Aussie standing among the 11 singles entries.
"Another huge mental battle - it was probably one of my best performances, mentally, in my career to turn that match around with the conditions, with everything really against me," he sighed.
On another grey, dank Paris morning, the 'Demon' had a devil of a job coping with a rejuvenated 34-year-old giant playing lights-out tennis as he lost the first set and was reeling at 1-3 down in the second.
"Everything couldn't get any worse, right? I knew that this was just his (Struff's) ideal conditions to a T. Slow, heavy, rainy, muddy, he's able to hit through the court and not make a lot of mistakes.
"I told myself the only way I was going to win was just to fight 'til the end, fight every single point, keep battling, try to stay in no matter what. That's what got me the win.
"Sometimes you don't get rewarded, but a day like today where I'm backed against the wall, a lot of things going against me, and managing to kind of find the gold at the end of the tunnel, it's huge.
"It kind of gives me that confidence that I can do it again and again now.'
He can consider the day he defused Struff's thunderous game in six minutes under three hours in front of a largely pro-German crowd to make the second week in his least productive grand slam to be another key moment in his burgeoning career.
He fought back to take the second set but was 2-0 down in the third when the rains came for the fifth straight day.
The Aussie No.1 had complained the constant interruptions to matches in the cold, damp conditions had added years to his life.
But it was the booming groundstrokes of world No.41 Struff which had looked better designed to give him grey hairs, as he crashed 32 winners past the 11th seed even before the stoppage.
It proved a timely one for de Minaur, as Struff admitted.
"After the rain, I felt he came on very well, played a bit more aggressive. At the end, he was playing very good, hitting very deep balls, getting into offensive positions," said the German. "He did a great job."
When play finally resumed at 5.30, Struff's guns were spiked.
De Minaur, at 3-1 down in the third, reeled off five games, and a break in the third game of the fourth was crucial, though de Minaur did suffer some nervous moments as Struff had two break points to get back on serve at 4-4.
But de Minaur wouldn't be denied, and, afterwards rushed over to hug a kid at courtside who had been a non-stop cheerleader on this longest day.
Then he could ponder the prospect of a fourth-round date with old foe, fifth seed Daniil Medvedev, who overcame Czech Tomas Machac 7-6 (7-4) 7-5 1-6 6-4.
