Marc Dull played solo Tuesday morning and made USGA history, becoming the first player to win a U.S. Amateur Four-Ball match as a single.

After Rory McIlroy's poor performance at the PGA Championship this weekend, all anyone could talk about was the fact he was forced to change his driver after it was deemed non-conforming following a test before the year's second major teed off.

Rory McIlroy's PGA Championship performance overshadowed by driver controversy. USGA's non-conforming ruling led to equipment changes for several golfers.

The USGA is contesting 13 final qualifiers to help determine the field for the U.S. Open at Oakmont Country Club.

A day late, the PGA of America finally issued a statement about Rory McIlroy’s driver being deemed “non-conforming’’ following a random check.

The USGA tested Rory McIlroy's driver and concluded that it did not meet established standards, forcing him to change it before the PGA Championship.

Rory McIlroy’s driver face reportedly was deemed non-conforming at the PGA Championship. Shouldn’t fans have a right to know that?

Rory McIlroy had to switch drivers ahead of the first round of the PGA Championship after his gamer was deemed non-conforming, according to a report by SiriusXM PGA Tour Radio. McIlroy is known as the best driver of the golf ball of his generation.

The PGA of America says Rory McIlroy was part of some 50 players who had drivers tested before the PGA Championship

Woods is now at the point in his career where he’ll need to rely on special exemptions to get into two of the four majors.