He also struck out 10 compared with one in his previous start.
Roberts was trying to turn around his year, with only one top-10 finish in 11 previous starts.
He posted a 9.82 earned run average in his three previous starts.
Brown (11-6) had five complete games in his six previous starts.
The previous best start in their 11-year history was 4-0.
The worst previous start by home teams was 2-16 in 1986.
In his previous start, he had given up 25.
Their previous best start after nine games was in 1977, with a record of 4-2-3.
In his previous start, he had only lasted three innings.
The previous start was 5-1 on four occasions, most recently in 2005.
