| # | Pitchers | B/T | Ht | Wt | DOB |
|---|---|---|---|---|---|
| 34 | Jake Arrieta | R-R | 6'4" | 225 | Mar 6, 1986 |
| 65 | Mike Belfiore * | R-L | 6'3" | 220 | Oct 3, 1988 |
| 53 | Zach Britton * | L-L | 6'3" | 195 | Dec 22, 1987 |
| 49 | Dylan Bundy * | S-R | 6'1" | 195 | Nov 15, 1992 |
| 68 | Alex Burnett * | R-R | 6'0" | 220 | Jul 26, 1987 |
| 16 | Wei-Yin Chen
 15-day DL *
|
L-L | 6'0" | 195 | Jul 21, 1985 |
| 38 | Freddy Garcia | R-R | 6'4" | 255 | Oct 6, 1976 |
| 50 | Miguel Gonzalez
15-day DL *
|
R-R | 6'1" | 170 | May 27, 1984 |
| 39 | Jason Hammel | R-R | 6'6" | 225 | Sep 2, 1982 |
| 29 | Tommy Hunter | R-R | 6'3" | 250 | Jul 3, 1986 |
| 43 | Jim Johnson | R-R | 6'6" | 240 | Jun 27, 1983 |
| 52 | Steve Johnson * | R-R | 6'1" | 220 | Aug 31, 1987 |
| 48 | Jair Jurrjens | R-R | 6'1" | 200 | Jan 29, 1986 |
| 17 | Brian Matusz | L-L | 6'4" | 200 | Feb 11, 1987 |
| 66 | T.J. McFarland | L-L | 6'3" | 220 | Jun 8, 1989 |
| 56 | Darren O'Day | R-R | 6'4" | 220 | Oct 22, 1982 |
| 40 | Troy Patton | S-L | 6'1" | 180 | Sep 3, 1985 |
| 60 | Josh Stinson * | R-R | 6'4" | 210 | Mar 14, 1988 |
| 47 | Pedro Strop | R-R | 6'0" | 215 | Jun 13, 1985 |
| 30 | Chris Tillman | R-R | 6'5" | 210 | Apr 15, 1988 |
| 18 | Tsuyoshi Wada
60-day DL **
|
L-L | 5'11" | 180 | Feb 21, 1981 |
| # | Catchers | B/T | Ht | Wt | DOB |
| 48 | Chris Snyder | R-R | 6'4" | 235 | Feb 12, 1981 |
| 31 | Taylor Teagarden
15-day DL *
|
R-R | 6'0" | 215 | Dec 21, 1983 |
| 32 | Matt Wieters | S-R | 6'5" | 240 | May 21, 1986 |
| # | Infielders | B/T | Ht | Wt | DOB |
| 24 | Wilson Betemit
60-day DL **
|
S-R | 6'2" | 220 | Nov 2, 1981 |
| 6 | Russ Canzler * | R-R | 6'2" | 220 | Apr 11, 1986 |
| 12 | Alexi Casilla | S-R | 5'9" | 170 | Jul 20, 1984 |
| 19 | Chris Davis | L-R | 6'3" | 230 | Mar 17, 1986 |
| 3 | Ryan Flaherty * | L-R | 6'3" | 210 | Jul 27, 1986 |
| 2 | J.J. Hardy | R-R | 6'1" | 190 | Aug 19, 1982 |
| 13 | Manny Machado | R-R | 6'2" | 180 | Jul 6, 1992 |
| 54 | Yamaico Navarro | R-R | 5'11" | 215 | Oct 31, 1987 |
| 28 | Steve Pearce | R-R | 5'11" | 210 | Apr 13, 1983 |
| 1 | Brian Roberts
60-day DL **
|
S-R | 5'9" | 175 | Oct 9, 1977 |
| 37 | Jonathan Schoop * | R-R | 6'2" | 210 | Oct 16, 1991 |
| 35 | Danny Valencia * | R-R | 6'2" | 220 | Sep 19, 1984 |
| # | Outfielders | B/T | Ht | Wt | DOB |
| 70 | Xavier Avery * | L-L | 6'0" | 190 | Jan 1, 1990 |
| 36 | Chris Dickerson | L-L | 6'4" | 230 | Apr 10, 1982 |
| 71 | L.J. Hoes * | R-R | 6'0" | 190 | Mar 5, 1990 |
| 10 | Adam Jones | R-R | 6'3" | 225 | Aug 1, 1985 |
| 21 | Nick Markakis | L-L | 6'1" | 190 | Nov 17, 1983 |
| 9 | Nate McLouth | L-R | 5'11" | 180 | Oct 28, 1981 |
| 14 | Nolan Reimold
15-day DL *
|
R-R | 6'4" | 205 | Oct 12, 1983 |
