Patrick Thompson and William Eskay scored for Harrisburg with Danny DiPrima notching both assists. William Banahene made six saves in the loss.
For Baltimore, double hat-tricks from Adriano Dos Santos and Andrew Hoxie fueled the Blast win. Tony Donatelli and Juan Pereira also scored for Baltimore (13-6) who tied for the division lead with Utica City, following their loss to Mississauga Metro Stars earlier in the day.
Harrisburg (7-12) returns home next weekend for back to back home games, Saturday and Sunday against the Orlando Sea Wolves and Utica City FC respectively. Tickets are on sale now at www.harrisburgheat.com.