2022: Top 500 In September, Shelbayh reached the semifinals of the
Manacor Challenger after receiving a wildcard into the main draw, defeating the top seed and world No. 127
Dominic Stricker in his opening match. Shelbayh became the first player from Jordan to win a match in ATP Challenger Tour history. On December 1, 2022, after one year as part of the
Florida Gators men's tennis team at the
University of Florida, Shelbayh announced that he would forego his remaining collegiate eligibility in order to turn professional. The following week, Shelbayh won his third
ITF singles title in
Trnava,
Slovakia, defeating
Daniel Rincón in the final. On December 28, 2022, Shelbayh won the second edition of the Arab Masters Tennis Tournament, held in
Kuwait City, defeating
Benjamin Hassan in the final. In addition to prize money of $25,000, the win gave Shelbayh a wildcard to compete in the main draw of the
2023 Qatar Open in Doha. He became the first Jordanian player in history and the youngest Arab to reach a final at Challenger level. As a result of this run, Shelbayh moved up more than 120 positions in ranking, entering the top 300 for the first time at world No. 276 on 20 February 2023. Shelbayh made his ATP tour-level main draw debut at the
2023 Qatar ExxonMobil Open as a wildcard, the first Jordanian to play in an ATP Tour match, Later in April, he qualified for the
Banja Luka Open in Bosnia and Herzegovina, having received an alternate spot in the qualifying competition. He defeated fellow qualifier
Elias Ymer in straight sets in the first round, becoming the first Jordanian player to win an ATP tour-level match. In October, at the
LTP Men's Open in
Charleston, Shelbayh defeated wildcard
Oliver Crawford to become the first Jordanian player to win a Challenger title. In November, he qualified for the
2023 Moselle Open in Metz, France, where he defeated
Hugo Gaston in the first round. He lost in the second round to defending champion
Lorenzo Sonego. Shelbayh was announced as the wildcard entry into the
2023 Next Gen ATP Finals.
2025: Second Challenger title In September, Shelbayh won the second singles Challenger title of his career at the
2025 Las Vegas Challenger, defeating
Alex Rybakov in the final. ==Performance timeline==