ALTOONA, Pa. — Top Washington Nationals prospect Stephen Strasburg has won his minor league debut, throwing consistently in the 97-98 mph range over five innings for Harrisburg of the Double-A Eastern League.

Strasburg allowed four hits and four runs — one earned — with eight strikeouts and two walks. He also delivered an RBI double Sunday in Harrisburg's 6-4 victory over Pittsburgh Pirates affiliate Altoona for his first professional hit.

Strasburg threw 82 pitches and left with Harrisburg leading 5-4. He allowed an earned run in the first inning on a double and single, then three unearned runs in the fourth, when Harrisburg made two errors.

The right-hander from San Diego State was the No. 1 pick in June's draft and signed a record $15.1 million contract with the Nationals.