The Blairgowrie golfer becomes just the second Scottish winner following David Inglis in the inaugural 1998 championship.
With 1999 Open Champion Paul Lawrie watching the action, 15-year-old Graham recorded a bogey-free five-under-par final round 67 to finish on 203, 13-under-par, to defeat heavily fancied Thai player Ratchanon Chantananuwat by five shots.
Eric Zhao from Canada was third on four-under in the 54-hole championship, with Riura Matsui from Japan in fourth spot on two-under.
“It’s a great feeling to come out on top in such a big event,” said Graham. “Ratchanon’s obviously a very good player and it feels good to perform well against him and other good players.”
Graham overcame 109 players aged between 12-16 from 64 nations around the globe to notch his first victory of 2022 after four wins last year.
He added, “This win ranks very high just because of the way I performed here. I didn’t drop a shot today under the pressure so I’m really pleased about that.”
The plus four handicapper began the championship ranked 356th on the World Amateur Golf Ranking® (WAGR®), 343 places below Chantananuwat. The 15-year-old arrived in Scotland with an Official World Golf Ranking of 291st after winning the Asian Tour’s Trust Golf Asian Mixed Cup earlier this year, a win that made him the youngest male winner of a professional tournament at just 15 years and 37 days.
However, it was Graham who held a two-shot lead as the pair began the final round. That lead soon became four when Graham’s pitch to the 456-yard, par-4, 4th hole landed six inches from the flag for a tap-in birdie. That stroke drew a response from the 1999 Champion Golfer of the Year: “Great shot, well done Connor,” said Lawrie.