The $2 pick six on Saturday paid $317,001 to a single ticket holder.
The winners of the pick six races - the sixth through 11th - were C'Mon Jenna ($10.40), Undeniable Proof ($6.40), Forest Caraway ($25.80), Pulpit Rider ($24.80), Pyron ($3.20) and Mithqaal ($18).
The pick six began on Saturday with a carryover of $101,793 in the single ticket jackpot pool, which is paid out when there is one winning ticket. Bettors added $331,748 to the pick six pool on Saturday.
The winning ticket was purchased through a betting hub in Maryland, track officials said.