The previous club record was shared by Liriano (2014) and three other pitchers: A.J. Burnett in 2013, John Candelaria in 1983 and Bob Veale in 1965.
Liriano also drove in the Pirates' first run of the season, knocking a ground ball single to right field in the second inning that plated Gregory Polanco.
The last time a pitcher drove in his team's first run of the season was Clayton Kershaw on April 1, 2013.