The 21-year-old came out top his heat with a time of 53.39s in a keenly contested battle against six other competitors.
Ghanaian swimmer Abeiku Jackson finished first in the men’s 100m Butterfly Heat 2 on Thursday at the ongoing 2020 Tokyo Olympic Games.
His finish time is a new national record after he edged the likes of India’s Prakash Sajan, South Korea’s Moon.
Earlier in the week, Jackson promised to win a medal at the Games, insisting he had a good preparation.
"I have prepared very well and want to start on a bright note and advance to the next stage,” he said.
"I am motivated to do well, and winning an Olympic medal in Tokyo would be historic.”'
Jackson, though, will now have to wait to see the results from other heats to know if he would advance to the semi-finals.
The Ghanaian will have to better the time of other athletes
to qualify for the next round.