Blair competed in the 2013 Web.com Tour Qualifying School as an amateur, reaching Final Stage and earning limited status on the Web.com Tour.[3] After turning professional, Blair began playing on PGA Tour Latinoamérica in March 2014. He played in seven events, making the cut six times and finishing in the top-10 three times.[6] He played eight events on the Web.com Tour, making seven cuts including a T-2 finish at the Price Cutter Charity Championship and qualifying for the Web.com Tour Finals.[6] After missing the cut in the first three events, he finished second at the Web.com Tour Championship and earned his PGA Tour card for the 2014–15 season.[3]
At the 2016 Wells Fargo Championship, Blair was disqualified for hitting himself in the head with a putter, and continuing to use it. He was disqualified for using a non-conforming club.[7]
In the 2018 PGA Tour season, Blair made only 11 cuts in 20 events. He won $330,507 and finished 170th in the season-long FedEx Cup. As a result, he lost his PGA Tour card.[3] Blair then attempted to get his card back via the 2018 Web.com Tour Finals, but was not successful. In October 2018, Blair missed the cut at the Alfred Dunhill Links Championship to fall to 663rd in the world ranking.[8]