When did Titleist's Pro V1 ball make its debut on the PGA Tour?

More about the Titleist's Pro V1 ball debut

The tournament was played at the TPC Summerlin. Billy Andrade won the tournament using the new Titleist Pro V1 ball. Runner up was Phil Mickelson.

New Titleist® Pro V1® offers total performance and features longer distance, very low long game spin, penetrating flight, even more Drop-and-Stop™ greenside control and softer feel. - Titleist

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