Rory McIlroy faced difficulties at Quail Hollow during the 2025 PGA Championship, falling short of expectations and finishing three over par. This came after he reportedly had to use a new driver due to his usual one failing the USGA’s equipment criteria earlier in the week.

McIlroy chose not to engage with the media post-round, resulting in a lack of confirmation regarding the driver switch. Yet, it seems there wasn’t any intention of wrongdoing by McIlroy, as reported by recent discussions surrounding the unusually selective equipment inspections conducted by the USGA, which apply to only a fraction of participants each week.

On the same note, Xander Schauffele, who had previously dealt with a similar situation in 2019, added to the discussion by stating that Scottie Scheffler might also have switched to a backup driver. In a statement, Schauffele remarked, “I think Scott is winning the tournament, and I think he switched to his backup, too.” This implies that Scheffler’s performance isn’t hindered by such changes, maintaining his position among the best in the tournament.

Schauffele emphasized, however, the inconsistency in how driver testing is enforced, pressing for reforms that would apply the regulations equitably across all players participating in the tournament. He said, “Do it to everybody, not just a third of the guys. If a player has a hot driver, they’re still playing the tournament. Just my take.”

As the event progresses, the mental aspect of adapting to new equipment could play a significant role in players’ performances, something not easily quantifiable but crucial nonetheless.