Kansspelautoriteit (KSA) has reported a stable number of match-fixing alerts in 2025, but identified a notable shift in the nature of the cases, with several reports involving athletes betting on competitions in which they were professionally involved.
According to the regulator’s annual trend analysis, the Sports Betting Intelligence Unit (SBIU) received 12 reports of potential match-fixing in 2025 from nine different licence holders, compared to 13 reports from eight operators in 2024.
While overall volumes remained broadly consistent, four of the 2025 reports concerned players betting on their own matches, competitions or leagues in which they were active – a category that did not appear in 2024.
Under the Dutch Betting and Gaming Act, licensed operators must report unusual betting patterns or circumstances that may indicate manipulation.
In 2025, six reports related to football, five to tennis and one to combat sports. Three concerned sporting events in the Netherlands.
Seven alerts involved unusual betting patterns, such as high stakes on lower-tier competitions or sudden behavioural changes by customers. In three cases, these reports related to the same match.
One notification concerned a potentially high-risk fixture flagged through an international partnership, though the operator’s internal review did not identify irregularities among its customers.
KSA stated that operators had generally taken mitigating action, including cancelling bets, blocking accounts and informing relevant sports federations.
During 2025, the regulator also continued its review of sports betting offerings, issuing warnings and one penalty for prohibited markets.
In parallel, KSA increased its focus on preventative education for professional athletes and published updated guidance, “Inzet op Integriteit” (Commitment to Integrity), to support operators in managing match-fixing risks.
The authority noted that while reporting levels remain low compared to international trends, it intends to continue promoting awareness and compliance across the licensed market.
The match-fixing findings come as KSA continues to take an assertive regulatory stance more broadly. Last month, the authority ordered prediction market platform Polymarket to cease operations in the Netherlands, threatening fines of up to €840,000 ($969,000) for non-compliance.
The KSA’s Sports Betting Intelligence Unit analyses reports from licensed operators but does not have a direct criminal investigative mandate
