Save This Event For Later Pan-Merrimack Challenge Newburyport, MA, Sat Jun 17, 2017 Who's Registered? | Contact Event | Event Website | Google Calendar Start line address: Michael's Harborside, Newburyport, MA 01950 Presented by The Riverside Rockets PMC Team and Michael's Harborside This is a past event. If you wish to see the details for this past event click "Continue" below. If you are looking for a current event, please search the event calendar .