College basketball betting rules surfaced again after an NCAA investigation involving a former starter from the University of San Francisco. The case connects daily fantasy wagers, shared performance details, and a separate Fresno State inquiry.
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The NCAA declared former University of San Francisco men basketball player Marcus Williams permanently ineligible following an investigation into violations of sports betting rules. Williams served as a starting guard for the Dons during the 2024 2025 season.
According to a negotiated resolution with the University of San Francisco, Williams shared information about future on court performance with Mykell Robinson, who played for Fresno State at the time. Robinson placed daily fantasy sports wagers tied directly to Williams statistical results.
Those wagers focused on over and under props involving points, rebounds, and assists. NCAA enforcement staff said the shared information gave Robinson an improper advantage in fantasy contests.
The NCAA said Williams failed to cooperate fully during the investigation. Officials stated he falsely denied holding a daily fantasy sports account early in the process. Williams later participated in the negotiated resolution and acknowledged the violations.
Despite the permanent ineligibility ruling, the penalty carries no practical impact on college eligibility. Williams eligibility expired after completion of his senior season with San Francisco.
Williams averaged 15 points per game during the season and helped San Francisco finish with a 25 10 record. The team reached postseason play before falling in the second round of the National Invitation Tournament.
After the season, Williams went undrafted in the 2025 NBA Draft. He later signed a Summer League contract with the Miami Heat.
The NCAA clarified that Williams placed wagers only on professional sports. University officials said the matter qualified as a limited and minor infraction under NCAA enforcement guidelines.
The Williams case surfaced during a wider investigation involving Robinson. The NCAA ruled Robinson permanently ineligible in September following allegations tied to intentional underperformance aimed at influencing prop bets.
Officials treated the Williams matter separately while noting its connection to the Fresno State probe.
The NCAA found Williams shared performance related information used for daily fantasy wagers.
No. NCAA officials said wagering activity involved professional sports only.
No changes were announced regarding San Francisco game outcomes.
Mykell Robinson, a former Fresno State player, placed fantasy wagers tied to Williams statistics.