Growing up, his favorite players were Michael Jordan, Kobe Bryant, Kevin Durant, Penny Hardaway, and Dwyane Wade.

Shayok finished with a game-high 21 points, helping the Cyclones battle back from a five-point deficit with 2 minutes, and 47 seconds remaining.

[11] On day two of the 2019 Portsmouth Invitational Tournament, Shayok scored 37 points, including a three-pointer to force overtime for his team, as well as the game-winning shot in OT.

[13] He was named an Associated Press All-America Honorable Mention, a Julius Erving Award finalist (Small Forward of the Year), and an All-Big 12 First-Team selection.

[15] On July 7, 2019, the 76ers announced that they had signed Shayok to a two-way contract, meaning he would split time between the 76ers and their G League affiliate, the Delaware Blue Coats.

[25] Following his very strong finish to the season, Shayok signed a two (1+1) year deal with fellow Turkish club Fenerbahçe on June 21, 2021.

[31][32] Shayok joined Maccabi Tel Aviv center Wenyen Gabriel, alongside whom he had represented South Sudan at the 2024 Olympic Games.

[33] Shayok represented South Sudan at the 2023 FIBA World Cup, averaging 13.2 points 3.5 rebounds, and 2.2 assists per game.

[34] The South Sudan men's basketball team finished the FIBA World Cup with a 3–2 record, and qualified for the 2024 Paris Olympics.

At the Olympics, he averaged 14.7 points, 3.7 rebounds, and 1.3 assists per game, as South Sudan defeated Puerto Rico but lost to Serbia and the United States.

[35][27] In a pre-Olympics exhibition game, he scored 25 points against Team USA, as South Sudan lost to the eventual gold medal winner by just one point, 100–101, as Team USA was led by four former NBA MVP winners, LeBron James, Joel Embiid, Stephen Curry, and Kevin Durant.