Jackson Suber, a 26-year-old American, surprised many by taking the lead in his first Open Championship at Royal Birkdale with a 5-under 65. Suber, playing in only his third major and first links course, showcased a remarkable performance, including a par save on the 15th and an eagle on the 16th.

His impressive round placed him ahead of contenders like Sungjae Im and Daniel Brown. The opening day featured several debutants among the top players, with five of the leading 12 participants making their first appearance. Notable performances also came from Scottie Scheffler, who shot a 68, and Bryson De Chambeau, who carded a 67 by employing a strategy of using his driver to avoid bunkers.

Despite a strong start, several players experienced mixed fortunes. Rory McIlroy struggled with his putting, missing multiple short putts and finishing with a 72. Alex Smalley, who held a share of the lead, ended his round with a double bogey on the 18th after his drive went out of bounds, resulting in a 67.