Carshalton Athletic Korboa made his debut for
Carshalton Athletic in March 2014, and played for the Robins across seven seasons, scoring 55 goals in 168 games. He was an original attendee at the
V9 Academy in 2017. Korboa was named in the
Isthmian League Team of the Season for 2018–19, and won five of the club's seven player of the year awards that season.
Northampton Town Korboa signed for
Northampton Town on 1 September 2020 for an undisclosed fee on a one-year contract, with an option for a second year. He made his debut in the league a week later on 12 September 2020, in a 2–2 draw with
AFC Wimbledon where he scored at the end of the first half to equal the match for the second time. On 11 May 2021 it was announced that he would leave Northampton when his contract expired at the end of the season.
Sutton United He signed for
Sutton United on 1 July 2021. He was released by Sutton at the end of the
2021–22 season.
Woking On 28 May 2022, it was announced that Korboa would join
Woking, signing a two-year deal following the conclusion of his contract with Sutton in July. On 13 August 2022, he made his debut for the club during a 2–0 home victory over
Dagenham & Redbridge, replacing
Kyran Lofthouse with just over 10 minutes remaining. Two months later, he scored his first goal for the club during an
FA Cup tie against
Southend United, scoring the winner in the 82nd minute as a second-half substitute during the 2–1 win. In the 2023–24 season Korboa scored seven times. Korboa announced he would be leaving the club at the end of his contract in June 2024.
Livingston In May 2024 it was announced that Korboa would join Scottish club
Livingston for the 2024–25 season. After only four appearances, he left Livingston by mutual consent in December 2024.
Maidenhead United On 24 December 2024,
Maidenhead United announced that Korboa would be signing for the club on 1 January 2025. Korboa made six appearances for the Magpies before leaving the club at the end of the campaign after relegation.
Carshalton Athletic In September 2025, Korboa returned to Isthmian League Premier Division club Carshalton Athletic.
Tonbridge Angels On 23 October 2025, Korboa joined
National League South club
Tonbridge Angels. ==Personal life==