Bradley was promoted from Class A Visalia to Double-A Mobile on May 2 and was 4-1 with a 0.79 ERA in the month, striking out 37 over six starts.
The 20-year-old right-hander had an 18-inning scoreless streak from May 2-24, and he was named the Southern League's Pitcher of the Week for the week of May 13-19.
Bradley's combined ERA of 1.01 and 80 strikeouts ranks second among all Minor Leaguers.
Owings hit .355 with six doubles, a homer and 14 RBIs while playing shortstop for the Triple-A Reno Aces.
The 21-year-old opened the month with an eight-game hitting streak and finished it with a 19-game streak. His current 21-game hitting streak is the longest active streak in professional baseball and the third longest in club history.
Owings leads all of professional baseball with 86 hits and leads the Pacific Coast League in games (57), at-bats (251) and runs scored (48), while his .343 batting average ranks sixth.
Steve Gilbert is a reporter for MLB.com. Read his blog, Inside the D-backs, and follow him on Twitter @SteveGilbertMLB. This story was not subject to the approval of Major League Baseball or its clubs.