Koen Kostons

Career MVV Kostons progressed through MVV's youth academy, joining their setup as a thirteen-year-old from boyhood club Lanaken VV. In the 2016–17 Eerste Divisie season, he was included in the matchday squad of the first team on several occasions, but did not yet make his debut. Kostons made his league debut on 6 October 2017 in a 3–2 loss against Almere City, coming off the bench in the 88th minute for Shermaine Martina. On 24 November 2017, he scored his first professional goal in a 3–1 victory against Helmond Sport.

Dalkurd On 27 July 2021, Kostons joined Swedish third-tier Ettan club Dalkurd. He made his debut for Dalkurd on 15 August 2021, also scoring his first goal for the club, in a 1–1 draw against Umeå FC.

He was part of Dalkurd's promotion to the second highest level in Sweden, Superettan, scoring 11 goals in 16 appearances.

Return to MVV On 4 July 2022, Kostons returned to his former club MVV on a two-year contract. He made his return debut for MVV on the first matchday of the 2022–23 season, starting at forward alongside Orhan Džepar in a 3–1 loss to Jong AZ. The following week he scored his first goal for the club upon returning, opening the score in a 3–1 home win over NAC Breda.

SC Paderborn In January 2024 Kostons joined 2. Bundesliga club SC Paderborn.

Loan to Kortrijk On 30 January 2025, Kostons moved on loan to Kortrijk in Belgium until the end of the 2024–25 season.

PEC Zwolle On 17 July 2025, Kostons joined PEC Zwolle on a four-year contract.

Career statistics