June 4 (UPI) -- FanDuel has banned an online bettor after he posted a video of himself heckling Olympic gold medalist Gabby Thomas at a Grand Slam Track event in Philadelphia last weekend, claiming "it made my parlay win."

The 28-year-old athlete on Monday posted on X: "This grown man followed me around the track as I took pictures and signed autographs for fans (mostly children) shouting personal insults. Anybody who enables him online is gross."

Thomas finished fourth in the 100-meter dash.

"FanDuel condemns in the strongest terms abusive behavior directed towards athletes," a FanDuel spokesperson said in a statement to ESPN . "Threatening or harassing athletes is unacceptable and has no place in sports. This customer is no longer able to wager with FanDuel."

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