Gout Gout has pledged to come back bigger and better after his thrilling run to the 200m semi-finals at the world championships in Tokyo.
At 17 and the youngest man ever to represent Australia at a world titles, the schoolboy sensation was eliminated in the 200m semis on a wet evening in the Japanese capital.
He finished fourth in 20.36 seconds in a semi won by rising Jamaican star Bryan Levell in 19.78.
Three-time world champ and Paris Olympics 100m gold medallist Noah Lyles - who has already forged a close personal relationship with the young Australian - was the fastest overall qualifier in 19.51.
Gout had been bidding to become the youngest man to qualify for a 200m world championships final, a record held by Japan's Abdul Hakim Sani Brown, who was 18 years and 157 days old when he contested the title race in London in 2017.
But time is very much on the Australian's side.
"A semi-finalist, to go out there and compete against the big guys, I couldn't be prouder of myself for sure," he said.
"Obviously, I was aiming for that sub-20 but today wasn't the day, God didn't allow it today.
"But I know for sure in the future it's going to be coming."
Gout was the youngest man in the 200m field and was hoping to better his time of 20.23 from the heats, even if conditions were tougher on Thursday night.
He was 18th fastest overall and would need to have run 19.98 or better to get a berth in the title race.
"It definitely makes me hungry, knowing that I'm just a kid right now, but knowing that I can compete as a kid," he said.
"And the thing I have on them is time - they may not have 15 years but I've got 15 years.
"I know that if I can do this at 17, I can do this at 25 and I'll be even better at 25."
Torrie Lewis was also run out in the women's semis, finishing fourth in 22.69 - some 0.13 slower than the PB she clocked in the opening round.
Lewis also beat her own national record in the 100m earlier in the meet.
"A pretty good championships I would say; two PBs and that's all I asked for coming in," said Lewis.
She was drawn in a tough semi alongside 100m gold medallist Melissa Jefferson-Wooden and British star Dina Asher-Smith.
"I had Melissa and Dina this time and I didn't really have the energy for the final 50 as I maybe usually would," she said.
Two-time Olympic silver medallist Nicola Olyslagers and 2022 world champion Eleanor Patterson both advanced to Sunday's high jump final with ease.
The Australian duo both needed only two jumps each in the qualifying round, with first-time clearances at 1.92m good enough for them to advance in equal first place alongside world record-holder Yaroslava Mahuchikh from Ukraine.
There was drama in the women's 800m, with Australian 1500m bronze medallist Jessica Hull sent crashing to the track half a lap into her heat.
Hull picked herself up to finish the race well adrift of the lead pack and was later added to the field for the semi-finals on appeal.
Australia will have a full contingent of three in the women's 800m semis on Friday after Claudia Hollingsworth and Abbey Caldwell advanced in more conventional fashion.
New national record-holder Hollingsworth ran a controlled race to finish third in her heat in one minute 59.06 seconds and Caldwell (1:58.71) got through as one of the three fastest non-automatic qualifiers.
Australians Rose Davies and Linden Hall qualified for the women's 5000m final after finishing fifth and seventh respectively in the second of two heats.
Georgia Griffith missed out after trailing home in 17th spot in the first heat.
Cameron McEntyre (75.65m) finished last in a men's javelin final won by former Olympic champion Keshorn Walcott, from Trinidad and Tobago, with a best throw of 88.16m.
