Who is Callum Tarren, current co-leader of the U.S. Open Callum Tarren just eagled the par-5 8th to vault into a share of the U.S. Open lead at 3-under par, prompting a question: Who is Callum Tarren?

American star Ben Shelton was forced to withdraw against Adrian Mannarino in his third-round match at the 2025 U.S. Open. The sixth seed pulled out due to a left shoulder injury, with compatriot ...