The former Arizona State Wildcat and 2000 United States Amateur champion made the announcement Friday at this years 101st U.S. Amateur, when he lost in the quarterfinals to Brian Nosler.
'It was a fun year,' said Quinney, 'and it's going to be something I'm going to remember the rest of my life.'
Quinneys first scheduled event as a pro will come at next weeks Air Canada Championship in Surrey, British Columbia.
The 22-year-olds decision comes on the heels of Bryce Molders professional debut in the Reno-Tahoe Open.
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