Overview

• Rory McIlroy’s trusted TaylorMade Qi10 driver was deemed non-conforming by the USGA due to likely 'driver creep,' a phenomenon caused by repeated use.
• The ruling came just before the start of the PGA Championship, requiring McIlroy to switch to a backup driver at the last minute.
• McIlroy struggled in the opening round, hitting only four fairways and finishing with a 3-over 74, a performance below expectations.
• The USGA and R&A routinely conduct stringent, confidential equipment checks to ensure clubs meet regulatory standards at major tournaments.
• This incident recalls a similar case in 2019 when Xander Schauffele’s driver also failed conformity testing at The Open.