The Schoolboy Who Beat the Pros
On the morning of April 10, 2022, at the Siam Country Club's Waterside Course in Pattaya, Thailand, a fifteen-year-old boy named Ratchanon Chantananuwat — known to everyone simply as TK — stood on the final tee of the Trust Golf Asian Mixed Cup with a lead he had built methodically over four days of professional tournament golf. His father walked beside him as caddie, as he always had. TK shot a closing seven-under-par 65. He finished on twenty-under for the tournament and won by two shots. He was fifteen years and thirty-seven days old.
In doing so, he became the youngest player in the history of professional golf to win a tournament recognized by the Official World Golf Ranking — the global rankings system that governs elite professional golf worldwide. The previous record had stood for decades. TK broke it as an amateur, still attending school in Bangkok, still technically a junior golfer, having simply entered a professional tour event and beaten every professional in the field.
TK's nickname is a combination of the initials of his parents' names — a small detail that captures something essential about his upbringing. Golf in Thailand is not the sport of aristocrats it can seem in the West; it is practiced broadly, often by families who see it as a vehicle for social mobility and international achievement. TK's father began coaching him as soon as TK could hold a club, and father-son golf has defined the rhythm of TK's life. His swing, which analysts describe as technically immaculate, was built in practice sessions that began before most of his classmates had woken up.
"I just tried to play my own game. I didn't think about the age records. I just played hole by hole." — Ratchanon "TK" Chantananuwat, April 2022
The win at the Trust Golf Asian Mixed Cup landed on the global golf press with the force of a revelation. CNN sent a crew to Thailand. Golf Digest and Golf Monthly ran feature profiles. The BBC covered the story. The Thai government and sporting authorities celebrated what was quickly understood as a landmark moment not just for Thai golf but for golf globally — a disruption of the assumption that age and professional experience correlate with performance at the elite level.
TK had already been recognized as exceptional within Asian junior golf circles for several years. He had won multiple Faldo Series junior titles — the development pathway run by former world number one Nick Faldo specifically to identify elite junior talent. His amateur record was without parallel in his age group. But the leap from junior dominance to beating professionals on a ranked tour, at fifteen, was categorically different from anything previously seen.
In 2022, TK also competed at a LIV Golf event — the Saudi-backed tour that launched that year with massive prize money and global attention — again demonstrating a comfort with elite professional competition that belied his age. In the same year, he was confirmed as the favorite for the Asia Pacific Amateur Championship, a status that would typically apply to players several years older.
"TK is the best young player I have seen in twenty years of watching Asian golf. What he has is not teachable." — Asian Tour official, 2022
In 2023, TK announced he would follow the path of Tiger Woods and Rose Zhang by enrolling at Stanford University — choosing American collegiate golf, with its fierce competition and storied history, as the environment for the next phase of his development. As of 2025–26, he competes on the Stanford Cardinal golf team while continuing to build the amateur résumé that will support a future professional career. He will be eighteen in 2025, and the professional tours are already waiting.