BOTTOM LINE: The Pittsburgh Pirates hit the road against the Seattle Mariners looking to break a four-game road losing streak. Seattle has a 24-21 record at home and a 47-42 record overall. The Mariners have gone 33-7 in games when they scored five or more runs.

Luis Castillo struck out eight over seven shutout innings and Ben Williamson drove in the only run with an RBI double for the Seattle Mariners.

S EATTLE — The Seattle Mariners lit the fireworks early against the Pittsburgh Pirates on the Fourth of July. The Mariners prevailed 6-0 off a four-home run day in the intraleague showdown, including two from designated hitter Cal Raleigh.