Volstad was selected by Florida in the first round of the 2005 draft with the 16th overall pick. He made his major league debut with the Marlins in 2008, posting a 2.88 ERA to go along with a 6-4 record. He struck out 52 in 84.1 innings. His ERA and his 8.1 hits allowed per nine innings pitched would have led the team if he had reached the minimum innings pitched.
Volstad has been a mainstay in the Marlins rotation ever since, starting 88 games over the last three seasons.
Volstad posted a 9-13 record and a 5.21 ERA in a disappointing 2009 campaign. In 2010, he rebounded and went 12-9 with a 4.58 ERA as the number three rotation starter.
In September of 2010, Volstad was involved in a bench clearing brawl against the Washington Nationals. According to wikipedia.org,
In the day's previous game, the Nationals' Nyjer Morgan intentionally ran into Marlins' catcher Brett Hayes on a play at home plate where Morgan was called out. Hayes separated his shoulder and it was determined later that night that he would miss the remainder of the season. In Morgan's first at-bat, Volstad threw at Morgan, hitting him. Morgan proceeded to steal two bases when the Marlins had an almost double digit lead, breaking an unwritten rule of ethics in the game. Offended by Morgan once again, Volstad threw another pitch at Morgan in his next at-bat, with it going behind Morgan's back. Morgan quickly charged the mound, despite the fact that Volstad stood nearly a foot taller than him. Morgan's punch at Volstad missed, and Morgan was promptly clotheslined by Marlins' first baseman Gaby Sanchez, resulting in the bench clearing brawl. Volstad was suspended for 6 games because of the incident.
2011 was another substandard season for Volstad, as he finished with a 5-13 record, posting a 4.89 ERA and striking out 117 batters in 165.2 innings pitched.
The 6'8" right-hander has a composite 32-39 record with a 4.59 ERA. In 103 games played, Volstad has walked 204 and struck out 378.