Gout Gout has become the third Australian to break the 10-second barrier in the men’s 100m.
The 17-year-old recorded two identical times of 9.99 seconds in the heat and final at the 2025 Australian Athletics Championships in Perth.
Despite the feat, Gout’s times will not be counted as official records due to an illegal tailwind. Here’s what you need to know.
What happened
Gout recorded the 9.99-second runs in the under-20 100m event, which he won easily. Even though the times won’t count officially, he is still only the third Australian to run 100m under 10 seconds after Patrick Johnson and Rohan Browning.
He said after the race:
“This definitely boosts my confidence levels. Sub-10 is what every sprinter hopes for and to get it so early this year is definitely great. It also boosts my confidence for the main event for me, like the 200m.”
Gout is also set to race the senior 200m, the event in which he set the Australian record of 20.04 in December. He will come up against fellow Queenslander Lachlan Kennedy, who beat him at the Maurie Plant Meet two weeks ago.
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Kennedy is also racing in the senior 100m and has made clear his ambition to run under 10 seconds. The heats are tonight, and the final will follow tomorrow.
What is an illegal tailwind?
The wind measurements for Gout’s two sub-10-second times were +3.5 m/s in the heat and +2.6 m/s in the final.
The results of a race up to and including 200 metres long are not considered legal (i.e eligible to be world or national records) if there is a tailwind with a velocity that exceeds two metres per second. The wind for 100m sprints is measured at the start line.
Wind assistance is not always the determining factor in fast times, but it can help. The second fastest 100m of all time (9.68 seconds) was recorded by American Tyson Gay with the help of an illegal +4m/s tailwind.
That being said, the fastest 100m of all time remains Usain Bolt’s 9.58 seconds, which was run in legal conditions of +0.9m/s in 2009.
How to watch
You can watch the 2025 Australian Athletics Championships on 7Plus.
