| RP | Aardsma - Red Sox, D.Aardsma - Red Sox, David | R | 61 | 1 | 1 | 4.70 | .281 | .330 | 1.30 | 7.5 | 4.2 | 10.5 | 30 | 25 | 6 | 14 | 35 | 0 | 0 | 1 | 23 | 21 | C |
| RP | Albers - Jays, M.Albers - Jays, Matt | R | 72 | 2 | 0 | 1.21 | .248 | .290 | 1.08 | 7.5 | 2.2 | 6.8 | 37 | 31 | 3 | 9 | 28 | 0 | 0 | 0 | 25 | 17 | C |
| RP | Alvarez - Marlins, J.Alvarez - Marlins, Jose | L | 57 | 4 | 3 | 3.49 | .277 | .320 | 1.21 | 7.8 | 3.1 | 7.9 | 67 | 58 | 5 | 23 | 59 | 0 | 0 | 1 | 23 | 18 | C |
| RP | Bailey - Angels, A.Bailey - Angels, Andrew | R | 39 | 3 | 1 | 5.36 | .294 | .340 | 1.35 | 8.6 | 3.6 | 8.6 | 43 | 41 | 7 | 17 | 41 | 0 | 6 | 3 | 23 | 20 | C |
| RP | Bass - Indians, A.Bass - Indians, Anthony | R | 30 | 0 | 0 | 4.50 | .299 | .340 | 1.34 | 9.3 | 2.8 | 6.3 | 64 | 66 | 5 | 20 | 45 | 0 | 0 | 1 | 37 | 16 | C |
| RP | Blanton - Royals, J.Blanton - Royals, Joe | R | 67 | 7 | 2 | 2.84 | .263 | .300 | 1.12 | 8.2 | 1.9 | 9.4 | 76 | 69 | 7 | 16 | 79 | 0 | 2 | 2 | 40 | 19 | C |
| CL | Capps - M's, C.Capps - M's, Carter | R | 99 | 1 | 0 | 1.16 | .195 | .240 | 0.81 | 5.2 | 2.0 | 16.8 | 31 | 18 | 2 | 7 | 58 | 0 | 0 | 2 | 23 | 29 | C |
| RP | Cingrani - Braves, T.Cingrani - Braves, Tony | L | 23 | 0 | 3 | 5.67 | .339 | .390 | 1.70 | 8.5 | 6.8 | 10.6 | 33 | 31 | 3 | 25 | 39 | 0 | 0 | 2 | 23 | 23 | C |
| RP | Cisnero - O's, J.Cisnero - O's, Jose | R | 25 | 0 | 4 | 4.33 | .320 | .370 | 1.54 | 9.0 | 4.9 | 10.3 | 35 | 35 | 5 | 19 | 40 | 0 | 0 | 1 | 23 | 23 | C |
| RP | Dolis - FA, R.Dolis - FA, Rafael | R | 25 | 2 | 3 | 5.63 | .346 | .400 | 1.75 | 8.2 | 7.6 | 11.0 | 32 | 29 | 2 | 27 | 39 | 0 | 3 | 4 | 23 | 23 | C |
| RP | Gearrin - Red Sox, C.Gearrin - Red Sox, Cory | R | 64 | 3 | 2 | 4.28 | .267 | .310 | 1.17 | 7.9 | 2.6 | 8.4 | 48 | 42 | 4 | 14 | 45 | 0 | 3 | 1 | 23 | 19 | C |
| RP | Hagadone - Cubs, N.Hagadone - Cubs, Nick | L | 15 | 0 | 1 | 4.28 | .316 | .370 | 1.56 | 10.0 | 4.0 | 9.3 | 27 | 30 | 3 | 12 | 28 | 0 | 0 | 2 | 23 | 19 | C |
| CL | Harris - Rays, W.Harris - Rays, Will | R | 93 | 5 | 5 | 1.90 | .223 | .260 | 0.90 | 5.3 | 2.8 | 8.6 | 71 | 42 | 8 | 22 | 68 | 0 | 2 | 2 | 23 | 19 | C |
| RP | Hendriks - Jays, L.Hendriks - Jays, Liam | R | 70 | 5 | 0 | 2.92 | .257 | .300 | 1.09 | 8.3 | 1.5 | 10.0 | 64 | 59 | 3 | 11 | 71 | 0 | 0 | 4 | 23 | 20 | C |
| RP | Hernandez - Dbacks, D.Hernandez - Dbacks, David | R | 21 | 3 | 4 | 3.84 | .325 | .360 | 1.51 | 9.6 | 4.0 | 10.0 | 72 | 77 | 11 | 32 | 80 | 0 | 1 | 6 | 23 | 20 | C |
| RP | Hochevar - Braves, L.Hochevar - Braves, Luke | R | 44 | 1 | 1 | 3.73 | .289 | .330 | 1.30 | 8.8 | 2.9 | 8.8 | 50 | 49 | 7 | 16 | 49 | 0 | 1 | 3 | 23 | 19 | C |
| RP | Jones - Dbacks, N.Jones - Dbacks, Nate | R | 94 | 5 | 3 | 2.29 | .223 | .260 | 0.90 | 6.2 | 1.9 | 10.3 | 70 | 48 | 7 | 15 | 80 | 0 | 3 | 7 | 23 | 21 | C |
| RP | LeBlanc - Reds, W.LeBlanc - Reds, Wade | L | 60 | 4 | 0 | 3.77 | .263 | .300 | 1.13 | 8.6 | 1.6 | 7.4 | 62 | 59 | 14 | 11 | 51 | 0 | 2 | 0 | 59 | 18 | C |
| RP | Logan - Nats, B.Logan - Nats, Boone | L | 15 | 0 | 3 | 4.33 | .331 | .380 | 1.63 | 10.3 | 4.4 | 11.3 | 35 | 40 | 3 | 17 | 44 | 0 | 0 | 3 | 23 | 24 | C |
| RP | Lowe - M's, M.Lowe - M's, Mark | R | 83 | 1 | 3 | 1.96 | .249 | .290 | 1.05 | 7.5 | 2.0 | 10.0 | 55 | 46 | 4 | 12 | 61 | 0 | 1 | 2 | 23 | 20 | C |
| RP | Madson - Pirates, R.Madson - Pirates, Ryan | R | 86 | 1 | 2 | 2.13 | .235 | .270 | 0.97 | 6.7 | 2.0 | 8.3 | 63 | 47 | 5 | 14 | 58 | 0 | 3 | 1 | 23 | 18 | C |
| RP | Manship - Dodgers, J.Manship - Dodgers, Jeff | R | 96 | 1 | 0 | 0.92 | .191 | .230 | 0.77 | 4.6 | 2.3 | 7.6 | 39 | 20 | 1 | 10 | 33 | 0 | 0 | 0 | 25 | 18 | C |
| RP | Moylan - Reds, P.Moylan - Reds, Peter | R | 40 | 2 | 0 | 3.43 | .290 | .330 | 1.32 | 8.6 | 3.3 | 7.0 | 44 | 42 | 4 | 16 | 34 | 0 | 0 | 3 | 23 | 18 | C |
| RP | Narveson - Angels, C.Narveson - Angels, Chris | L | 81 | 3 | 1 | 4.45 | .248 | .300 | 1.10 | 7.2 | 2.7 | 9.6 | 30 | 24 | 7 | 9 | 32 | 0 | 0 | 0 | 38 | 20 | C |
| RP | Ogando - Phils, A.Ogando - Phils, Alexi | R | 43 | 3 | 1 | 3.99 | .298 | .340 | 1.34 | 8.2 | 3.9 | 7.3 | 65 | 59 | 12 | 28 | 53 | 0 | 0 | 1 | 23 | 17 | C |
| RP | Ohlendorf - Phils, R.Ohlendorf - Phils, Ross | R | 39 | 5 | 7 | 4.66 | .307 | .350 | 1.40 | 8.2 | 4.4 | 9.4 | 65 | 59 | 14 | 32 | 68 | 0 | 2 | 4 | 23 | 19 | C |
| RP | Parker - Rangers, B.Parker - Rangers, Blake | R | 97 | 3 | 3 | 2.54 | .210 | .250 | 0.84 | 5.4 | 2.1 | 11.6 | 67 | 40 | 7 | 16 | 86 | 0 | 8 | 4 | 23 | 22 | C |
| RP | Pomeranz - Twins, D.Pomeranz - Twins, Drew | L | 66 | 5 | 6 | 3.66 | .276 | .310 | 1.19 | 7.4 | 3.2 | 8.6 | 86 | 71 | 8 | 31 | 82 | 0 | 3 | 2 | 32 | 19 | C |
| RP | Pressly - Astros, R.Pressly - Astros, Ryan | R | 31 | 6 | 7 | 3.70 | .303 | .340 | 1.36 | 9.5 | 2.8 | 8.0 | 75 | 79 | 8 | 23 | 67 | 0 | 1 | 7 | 23 | 18 | C |
| RP | Richard - Angels, C.Richard - Angels, Clayton | L | 4 | 3 | 4 | 3.33 | .347 | .390 | 1.67 | 10.9 | 4.2 | 5.5 | 67 | 81 | 4 | 31 | 41 | 0 | 1 | 3 | 36 | 15 | C |
| RP | Rodriguez - Giants, F.Rodriguez - Giants, Fernando | R | 79 | 4 | 2 | 3.84 | .267 | .310 | 1.16 | 6.7 | 3.7 | 10.1 | 58 | 43 | 4 | 24 | 65 | 0 | 0 | 4 | 23 | 20 | C |
| RP | Scahill - Tigers, R.Scahill - Tigers, Rob | R | 9 | 2 | 4 | 2.64 | .329 | .380 | 1.63 | 9.9 | 4.8 | 7.2 | 30 | 33 | 3 | 16 | 24 | 0 | 0 | 1 | 23 | 18 | C |
| RP | Scheppers - Astros, T.Scheppers - Astros, Tanner | R | 19 | 4 | 1 | 5.63 | .326 | .370 | 1.58 | 8.8 | 5.4 | 7.6 | 38 | 37 | 6 | 23 | 32 | 0 | 0 | 1 | 23 | 18 | C |
| RP | Scribner - O's, E.Scribner - O's, Evan | R | 70 | 2 | 2 | 4.35 | .246 | .280 | 1.03 | 8.7 | 0.6 | 9.6 | 60 | 58 | 14 | 4 | 64 | 0 | 0 | 2 | 23 | 20 | C |
| RP | Volstad - FA, C.Volstad - FA, Chris | R | 3 | 1 | 5 | 6.27 | .338 | .380 | 1.64 | 12.4 | 2.3 | 5.6 | 47 | 65 | 9 | 12 | 29 | 0 | 0 | 1 | 28 | 15 | C |
| RP | Wang - Cubs, C.Wang - Cubs, Chien-Ming | R | 12 | 6 | 0 | 4.22 | .316 | .360 | 1.47 | 10.2 | 3.1 | 5.1 | 53 | 60 | 6 | 18 | 30 | 0 | 0 | 1 | 28 | 16 | C |
| RP | Withrow - Padres, C.Withrow - Padres, Chris | R | 62 | 3 | 0 | 3.58 | .275 | .320 | 1.24 | 7.1 | 4.1 | 6.8 | 37 | 29 | 5 | 17 | 28 | 0 | 0 | 1 | 23 | 17 | C |
| RP | Wood - Brewers, B.Wood - Brewers, Blake | R | 32 | 6 | 5 | 3.99 | .316 | .350 | 1.45 | 8.5 | 4.5 | 9.6 | 76 | 72 | 9 | 38 | 81 | 0 | 1 | 8 | 23 | 20 | C |