Moments after the news broke of De Grasse's win, fans across Ontario took to social media to applaud the Olympian and congratulate him on yet another win.
Hometown fans seized this gold-medal opportunity to share their Markham pride, and called on De Grasse's high school, Milliken Mills, to "STAND UP!"
Ontario NDP Leader Andrea Horwath also congratulated the Scarborough-born athlete on his impressive win. De Grasse's run time for this race, which was also his personal best, beat out Usain Bolt's time from the 2016 Rio Olympics.
MP for Markham-Thornhill Mary Ng retweeted a video of the history-making moment for Team Canada. "This is the first time a Canadian has won the event since 1928," CBC Olympics tweeted.
Bob Saroya, the MP for Markham-Unionville, shared a photograph of himself standing next to De Grasse and his family, alongside the street sign with the Olympian's last name on it.
Even the Toronto Raptors shared their congratulations for the Ontarian.
The celebrations were even carried out on a national level, with Prime Minister Justin Trudeau tweeting a congratulatory "GOLD!!!"
And now that the celebrations can begin, the Canadian Olympian told CBC that he can't wait to call his mom and celebrate with her back in Canada.
"My mom, back home in Canada, she's there. Can't wait to call her as well, she's probably so proud of me. Think she's back home watching it with my cousins, and her sister and brothers. She told me she had a little get-together at the house. So I know she's super proud of me," De Grasse said. "I'll definitely go home to my kids and I'll have her come out and celebrate with me and then I'll probably go back home to Canada when things settle down."
The cover image on the right was used for illustrative purposes only.
Nielsen Gracenote's Virtual Medal Table, Google