WATCH: Mikey Brannigan Wins Gold at Paralympic World Championships

Mikey Brannigan officially became a Paralympics Track and Field World Champion in the 1,500 meters on Sunday at the Suhaim Bin Hamam stadium in Doha, Qatar.

The 18-year-old East Northport native defeated Iran’s Peyman Nasiri Bazanjani by just .03 to break the tape in 3 minutes and 56.50 seconds, setting a course record time.

“I feel really happy,” Brannigan said in a press release. “I tried to be calm and not get too hyper, instead be patient and just relax. I’m excited to see what’s next to come on my road to Rio.”

Check out the results here.

Brannigan is scheduled to toe the line again in the Men’s 5,000m T20 on Friday, Oct. 31.

Brannigan, who has autism, had a stellar summer track season after graduating from Northport High School in June. He won gold in his first international meet at the Parapan Am Games in Toronto and won his first U.S. Paralympics Track and Field national title by running 1,500 meters in a time of 3:48.85, setting a new T20 Paralympic world record in the process.

In September, he was selected by U.S. Paralympics Track and Field as the 2015 Male Track Athlete of the Year and was awarded All-American status in the 1,500 meters and 5,000 meters events.

More on Brannigan:

• Star Northport Runner Reveals Post-Graduation Plans
• Mikey Brannigan Named U.S. Paralympics Male Track Athlete of the Year

Photo Credit: Paralympics Committee