This is the type of story that makes sportsbooks sweat and gambling legends grow. On Friday night, April 24, 2026, a sports bettor turned a modest $30 wager into a staggering $1,980,043.01 payout at Hard Rock Bet, simply by parlaying some MLB props. By hitting a six-leg home run parlay against all mathematical odds, this anonymous player has claimed what is arguably the biggest parlay win in sports betting history.