Jason Smyth began his quest for a third 100m gold on the bounce with a routine heat victory in Rio on Thursday night.
The Derryman was the second slowest runner out of the blocks but his sheer power negated that as he surged away from his rivals.
Smyth won the heat in 10.76 pulling up and will look to capture another gold medal in Friday's final (3.09pm).
The 29-year-old has never been beaten at a Paralympic games, and has four golds under his belt ahead of Friday's final.
"Tonight was about getting through to the final," he told RTÉ Sport afterwards. "Tomorrow is about stepping it up another notch and hopefully things can go well.
"At this stage it's about getting your head right and making sure you can put the race together.
"I'm not worried about times. I know I'm capable of running very quick. At the end of the day finals are about making sure you're the first person across the line."