American golfer Billy Horschel leads the British Open at Royal Troon after a challenging third round in harsh weather conditions, posting a 2-under 69 for a 4-under total. Despite his historically poor record in the tournament, Horschel showed resilience, making crucial par saves and four birdies on the front nine. Shane Lowry, who began the day in the lead, struggled with a 6-over 77, dropping to three shots behind Horschel. Several players, including Thriston Lawrence and Sam Burns, capitalized on earlier milder conditions and are tied for second. Horschel, aiming for his first major title, emphasized the importance of this opportunity for his legacy in golf.