Three-time Olympic gold medalist Gabby Thomas said she was verbally abused at the Grand Slam Track meet in Philadelphia last weekend, the latest incident of harassment the American has reported this year.

Over the weekend, three-time Olympic gold medalist Gabby Thomas was followed and verbally abused by a sports bettor as she competed in the Grand Slam Track meet in Philadelphia. By midweek, FanDuel said it had banned the man behind the heckling from gambling on its platform.

Grand Slam Track is investigating a fan who said he heckled sprinter Gabby Thomas during an event in Philadelphia this past weekend so that he could win his bet, per Margaret Fleming of Front Office Sports.