Two years ago, when he was ranked at a lowly 221 in the world, the giant Pole didn't have the cash to buy an air ticket to the Australian Open and in his junior days, he even was offered fantastic riches to dump Poland and play for Qatar.
No wonder the 22-year-old native of Lodz collapsed in tears after beating compatriot Lukasz Kubot to reach his first Grand Slam semi-final at Wimbledon on Wednesday.
As a semi-finalist he collects at least USD 610,000.
"I was practicing really tough my whole life. I had some troubles also during my career. You are practicing and working for that kind of moment. It wasn't easy to control these emotions," said the 2.03m Pole.
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Twelve months ago, Janowicz arrived at Wimbledon ranked 136 and had to qualify.
He made the third round and at the end of the year he had proved that performance was no fluke when he made the Paris Masters final, again having to come through the qualifiers.
Suddenly those penniless days travelling and sleeping in his car to save money were over.