Favourites were upended in three legs of Wednesday's (July 21) Late Pick-4 at Harrah's Philadelphia, resulting in a $2,039.06 carryover to Thursday's (July 22) Early Pick-4 and prompting a $10,000 guaranteed total pool.

The guarantee is offered in conjunction with the United States Trotting Association's Strategic Wagering Program.

The Early Pick-4 comprises the first four races on the card, and offers a 50-cent base wager and 15 per cent takeout. Past performances for the entire card are available at this link.

First post is 12:25 p.m. EDT.

(Harrah's Philadelphia)