Hearn shot a 1-over 73 in the fourth round of the RBC Canadian Open on Sunday to finish the $5.6-million PGA Tour event at 4 under, tying a group for 44th.
It's the second time he's been the best Canadian at the tournament, having tied for 20th at the Hamilton Golf and Country Club in 2006.
"I've been low Canadian once before and it's obviously proud for me to do that in front of everyone here at home," said Hearn. "It wasn't the finish that I was really looking for. I had a nice chance today, I was playing pretty solid, to kind of finish off a nice round and do it with a little bit of style.
"But I'll take away some positives from the week and, obviously, I appreciate the support from everyone here this week and it always feels good to play at home."
Hearn is from Brantford, Ont., 60 kilometres west of Oakville, Ont., the site of this year's Canadian Open. Fans followed Hearn and fellow countrymen Mike Weir and Roger Sloan around the course at Glen Abbey Golf Club, with most gathering at the 18th green to watch the Canadians finish out their rounds.
The crowd cheered when Hearn sank his final putt of the tournament.
"I would've liked to have been making birdie like I did on Friday, get them a little bit more excited," said Hearn of the crowd's reaction. "It feels great.
"As I say, the support from everyone in Canada is amazing and I can't wait to do it again next year at Royal Montreal."
Weir, from Brights Grove, Ont., finished in a tie for 49th at 3-under par. He was also pleased with the support of the Canadian fans.
"It's wonderful, to have great support like that is special," said Weir. "I've said that before. Not many guys kind of get that feeling to represent your country and to have that sense of pride. You know, it feels great. I'll say that."
Sloan, from Merritt, B.C., was consistent throughout the tournament. He fired a 1-under 71 in the first two rounds, then an even-par 72 in the third and fourth to finish at 2-under par, tied for 52nd.
The 26-year-old is a regular on the Web.com Tour, but feels that the higher-level PGA Tour is within his reach.
"The PGA Tour is not way up there anymore. It's just within grasp," said Sloan. It's comforting to know if I stick to the process and stay committed to what I'm doing, I'm going to be out here soon."
A Canadian hasn't won the national open since Pat Fletcher in 1954. The only Canadian-born golfer to win the Canadian Open is Karl Keffer (1909, 1914). Although a Canadian citizen at the time of his victory, Fletcher was born in England.