Justin Thomas shatters Medinah course record as McIlroy challenge wilts

Justin Thomas took command of the BMW Championship with a superb 11-under 61 to shatter the Medinah course record and open up a six-stroke lead heading into the final round.

The American had produced a first-round 65 in Illinois to equal the record along with Jason Kokrak, before Japanese player Hideki Matsuyama then shot an impressive nine-under-par 63 on Friday.