<P> In an effort to meet USSF Division II requirements, Highmark Stadium began an expansion effort to add 1,000 seats; meeting the minimum required capacity of 5,000 . The project is anticipated to be completed ahead of the 2018 season . </P> <P> Although several warm - up matches and other non-soccer events were held at the stadium previously, the first official Riverhounds match took place on April 13, 2013, against the Harrisburg City Islanders . </P> <Table> <Tr> <Th> Final Score </Th> <Td> Pittsburgh Riverhounds 1--2 Harrisburg City Islanders </Td> </Tr> <Tr> <Th> Opening Day Attendance </Th> <Td> 4,000 ^ </Td> </Tr> <Tr> <Th> First Goal </Th> <Td> Jose Angulo (Pittsburgh Riverhounds) (70') </Td> </Tr> <Tr> <Th> Other Goals </Th> <Td> Sainey Touray (78'), Lucky Mkosana (90') (Harrisburg City Islanders) </Td> </Tr> <Tr> <Th> First Assist </Th> <Td> Matthew Dallman (Pittsburgh Riverhounds) (70') </Td> </Tr> <Tr> <Th> First Substitution </Th> <Td> Tom Brandt for Andrew Welker (Harrisburg City Islanders) (9') </Td> </Tr> <Tr> <Th> First Yellow Card </Th> <Td> Kevin Kerr (Pittsburgh Riverhounds) (61') </Td> </Tr> <Tr> <Th> First Red Card </Th> <Td> None </Td> </Tr> </Table> <Tr> <Th> Final Score </Th> <Td> Pittsburgh Riverhounds 1--2 Harrisburg City Islanders </Td> </Tr>

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