Worcester opened the game strong and scored in extras, but failed to close out the win on Friday.
The Red Sox fell to the Lehigh Valley IronPigs, 4-3, after 10 innings.
Tyler McDonough connected on an RBI single in the second to give the Red Sox an early advtage. But the IronPigs jumped ahead after a two-RBI double from Rodolfo Castro in the bottom of the second.
Both sides were held scoreless until McDonough drove in his second RBI single of the day in the seventh. With the score level, neither side could find the winning edge before extra innings.
Worcester (36-30) will face Lehigh Valley on Saturday, June 14 at 6:35 p.m.
