"As silly as it sounds, I never truly believed I had cancer," said Rank. "I know I did, the test results showed that. But I thought to myself, 'you're a young athlete in great shape. You're a good kid. You never did anything to deserve this.' I always thought of it as a lie, or that it wasn't actually true. That helped push me along."

Now with a clean bill of health, Rank says he has "the best of both worlds" as he pursues his two passions.

"I love my job, but I love being able to come out here (the golf course) for four or five months and work on my game," he said.

In 2014, Rank captured the Canadian Mid-Amateur Championship to secure a spot in this summer's RBC Canadian Open, which is scheduled the week after the Pan Am Games tournament. It will be his PGA Tour debut.

"I feel like I probably should have played a couple (Canadian Opens) before, but it just hasn't worked out," he said. "But I'm excited to get this opportunity, and I want to go there and do well. I want to see what professional golf at the highest level is about."

Rank's whirlwind summer began July 6, where he won a qualifier for the U.S. Amateur by six shots. If he makes it to the finals, which start Aug. 17, he'll qualify for the Masters.

From there, he received a special exemption into The Players Cup, an event on Mackenzie Tour-PGA Tour Canada.

Next up is the Pan Am Games, which begins Thursday at Angus Glen, the same course where Rank won the 2010 Ontario University Association Championship.

"It's kind of a home game, and seeing some familiar faces in the crowd will definitely be an advantage," he said.

Canadian coach Derek Ingram says Rank has some "wicked natural ability."

"Garrett is a lot of fun, and he's an unbelievable team guy," said Ingram. "Regardless of the results next week, we're going to have a great time."

By Adam Stanley, The Canadian Press