Widing turned professional in June 2021 and made seven starts on the European
Challenge Tour over the summer. In his fourth start, he led the
Euram Bank Open ahead the final round, but a bout of food poisoning following a bad pasta
carbonara forced him to drop out of the tournament. A few weeks later, he also led the
Made in Esbjerg Challenge after a five-under-par opening round of 66. Widing joined the 2022
PGA Tour Latinoamérica after he finished second at the Q-School at Estrella del Mar in Mexico. His best finish was a tie for fifth at the
Abierto del Centro, and he finished 33rd in the rankings to keep his status. In February, he won the Storyi Temecula Open on the Golden State Tour, and in December he finished solo third at the
Argentina Classic. Widing joined the 2023
Korn Ferry Tour after he finished tied 29th in the Final Stage of Q-School at the Landings Club in
Savannah, Georgia. He recorded a career-low 54-hole score of 198 to hold a one stroke lead going into the final round of the Compliance Solutions Championship in
Norman, Oklahoma, eventually finishing in a tie for 4th. In April 2024, Widing won his first Korn Ferry Tour title at the
LECOM Suncoast Classic at Lakewood National Golf Club in Florida, prevailing in a three-man playoff. The week after he won again, with a tour record, in relation to par, score of 31-under-par 253, at the
Veritex Bank Championship at Texas Rangers GC in
Arlington, Texas. With 33 birdies in the 72-hole tournament, he set a new record in the 34-year-history of the tour. With his two victories, Widing took a big lead on the points list, and ultimately graduated to the 2025
PGA Tour by finishing 5th in the season rankings. Widing's Korn Ferry Tour wins earned him a special exemption into the
2024 PGA Championship, taking place the following month, his first major, and made his first cut in a major at the
2024 U.S. Open. ==Amateur wins==