Relief Pitchers, by Last Name
Through games of Thursday, 8 May 2008
(Results are NOT--yet--from normalized data.)
Or choose another Role page sorted by last name:
Starters
Relievers
Or choose another Role page sorted by pitching performance:
Starters
Relievers
Pitching-Handedness Key:
+ R * L
(You can also look up the stat definitions.)
| Player |
Team |
Role |
IP |
BFP |
BA |
SA |
HA |
PF |
BBA |
OBA |
TBA |
K/W |
TPP |
QofP |
ERA |
| Aardsma, David + | Red Sox | RP | 16.2 | 77 | .197 | .295 | .156 | 1.500 | .182 | .338 | .234 | 0.929 | 527 | 3.21 | 2.70 |
| Accardo, J. + | Blue Jays | RP | 11.2 | 52 | .292 | .479 | .275 | 1.643 | .039 | .314 | .451 | 2.000 | 844 | 5.26 | 6.17 |
| Acosta, Manny + | Braves | RP | 16.0 | 70 | .211 | .351 | .174 | 1.667 | .145 | .319 | .290 | 1.100 | 629 | 3.87 | 3.38 |
| Adenhart, Nick + | Angels | RP | 6.1 | 37 | .333 | .481 | .243 | 1.444 | .270 | .514 | .351 | 0.300 | 1413 | 8.44 | 11.37 |
| Affeldt, J. * | Reds | RP | 14.2 | 64 | .222 | .333 | .188 | 1.500 | .125 | .313 | .281 | 2.250 | 531 | 3.14 | 3.07 |
| Albaladejo, J. + | Yankees | RP | 11.1 | 50 | .295 | .500 | .260 | 1.692 | .100 | .360 | .440 | 2.200 | 915 | 5.42 | 4.76 |
| Aquino, Greg + | Orioles | RP | 6.1 | 37 | .423 | .654 | .297 | 1.545 | .189 | .486 | .459 | 0.857 | 2088 | 12.32 | 14.21 |
| Ayala, Luis + | Nationals | RP | 20.1 | 92 | .284 | .383 | .258 | 1.348 | .067 | .326 | .348 | 2.500 | 640 | 4.14 | 4.87 |
| Bale, John * | Royals | RP | 15.1 | 70 | .403 | .532 | .357 | 1.320 | .043 | .400 | .471 | 2.667 | 1113 | 6.59 | 7.63 |
| Bass, Brian + | Twins | RP | 22.0 | 100 | .264 | .495 | .242 | 1.875 | .071 | .313 | .455 | 1.286 | 815 | 4.96 | 3.68 |
| Bautista, D. + | Tigers | RP | 13.1 | 61 | .261 | .304 | .197 | 1.167 | .213 | .410 | .230 | 0.615 | 800 | 4.84 | 4.05 |
| Bazardo, Y. + | Tigers | RP | 3.0 | 20 | .500 | .786 | .368 | 1.571 | .211 | .579 | .579 | 0.750 | 2818 | 17.52 | 24.00 |
| Beimel, Joe * | Dodgers | RP | 12.0 | 49 | .244 | .267 | .229 | 1.091 | .063 | .292 | .250 | 3.000 | 394 | 2.54 | 0.75 |
| Bell, Heath + | Padres | RP | 19.2 | 81 | .205 | .274 | .190 | 1.333 | .051 | .241 | .253 | 3.000 | 329 | 2.18 | 2.29 |
| Beltran, F. + | Tigers | RP | 4.2 | 24 | .300 | .550 | .261 | 1.833 | .130 | .391 | .478 | 1.333 | 1117 | 7.22 | 5.79 |
| Bennett, Jeff + | Braves | RP | 29.1 | 126 | .219 | .371 | .183 | 1.696 | .119 | .302 | .310 | 1.267 | 624 | 3.68 | 3.68 |
| Benoit, J. + | Rangers | RP | 13.1 | 66 | .216 | .353 | .169 | 1.636 | .200 | .369 | .277 | 1.077 | 738 | 4.60 | 6.08 |
| Betancourt, R. + | Indians | RP | 14.2 | 63 | .300 | .533 | .290 | 1.778 | .016 | .306 | .516 | 14.000 | 841 | 5.19 | 5.52 |
| Bierd, Randor + | Orioles | RP | 13.1 | 57 | .250 | .365 | .232 | 1.462 | .071 | .304 | .339 | 1.250 | 539 | 3.42 | 2.03 |
| Birkins, Kurt * | Devil Rays | RP | 10.0 | 37 | .161 | .161 | .135 | 1.000 | .135 | .270 | .135 | 1.400 | 256 | 1.60 | 0.90 |
| Bootcheck, C. + | Angels | RP | 7.2 | 45 | .410 | .513 | .356 | 1.250 | .133 | .489 | .444 | 1.000 | 1603 | 9.49 | 10.57 |
| Borkowski, D. + | Astros | RP | 14.1 | 67 | .339 | .542 | .303 | 1.600 | .076 | .379 | .485 | 2.200 | 1114 | 6.71 | 4.40 |
| Borowski, Joe + | Indians | RP | 4.0 | 23 | .412 | 1.059 | .304 | 2.571 | .174 | .478 | .783 | 0.750 | 2710 | 15.78 | 18.00 |
| Boyer, Blaine + | Braves | RP | 20.2 | 79 | .181 | .306 | .165 | 1.692 | .051 | .215 | .278 | 5.500 | 320 | 1.90 | 4.35 |
| Bradford, Chad + | Orioles | RP | 13.0 | 54 | .260 | .320 | .245 | 1.231 | .019 | .264 | .302 | 8.000 | 474 | 3.04 | 1.38 |
| Bray, Bill * | Reds | RP | 4.0 | 21 | .333 | .389 | .286 | 1.167 | .143 | .429 | .333 | 1.333 | 948 | 5.59 | 0.00 |
| Breslow, Craig * | Indians | RP | 6.0 | 29 | .250 | .292 | .207 | 1.167 | .172 | .379 | .241 | 0.800 | 627 | 3.80 | 3.00 |
| Britton, Chris + | Yankees | RP | 2.2 | 10 | .000 | .000 | .000 | ----- | .200 | .200 | .000 | 0.000 | 77 | 0.54 | 0.00 |
| Brocail, Doug + | Astros | RP | 19.2 | 76 | .233 | .370 | .224 | 1.588 | .039 | .263 | .355 | 6.000 | 478 | 2.81 | 2.75 |
| Brown, Andrew + | Athletics | RP | 18.0 | 73 | .194 | .274 | .164 | 1.417 | .110 | .274 | .233 | 1.750 | 405 | 2.46 | 2.00 |
| Broxton, J. + | Dodgers | RP | 15.0 | 60 | .170 | .264 | .153 | 1.556 | .085 | .237 | .237 | 4.200 | 349 | 2.23 | 1.80 |
| Bruney, Brian + | Yankees | RP | 11.1 | 48 | .175 | .350 | .146 | 2.000 | .125 | .271 | .292 | 2.000 | 518 | 3.11 | 1.59 |
| Bulger, Jason + | Angels | RP | 5.2 | 25 | .292 | .750 | .280 | 2.571 | .040 | .320 | .720 | 6.000 | 1285 | 7.50 | 7.94 |
| Burnett, Sean * | Pirates | RP | 0.2 | 4 | .500 | 1.250 | .500 | 2.500 | .000 | .500 | 1.250 | ----- | 4507 | 25.80 | 27.00 |
| Burton, Jared + | Reds | RP | 15.2 | 71 | .270 | .476 | .243 | 1.765 | .057 | .300 | .429 | 5.500 | 719 | 4.38 | 4.02 |
| Byrdak, Tim * | Astros | RP | 5.2 | 25 | .211 | .316 | .167 | 1.500 | .208 | .375 | .250 | 0.400 | 606 | 4.03 | 0.00 |
| Cameron, Kevin + | Padres | RP | 10.0 | 46 | .263 | .368 | .227 | 1.400 | .091 | .318 | .318 | 1.250 | 529 | 3.59 | 3.60 |
| Camp, Shawn + | Blue Jays | RP | 6.2 | 27 | .240 | .360 | .231 | 1.500 | .000 | .231 | .346 | ----- | 390 | 2.73 | 6.75 |
| Campillo, J. + | Braves | RP | 16.0 | 63 | .155 | .224 | .143 | 1.444 | .079 | .222 | .206 | 2.600 | 215 | 1.30 | 1.69 |
| Capellan, Jose + | Rockies | RP | 2.0 | 9 | .333 | .444 | .333 | 1.333 | .000 | .333 | .444 | ----- | 687 | 4.04 | 4.50 |
| Capps, Matt + | Pirates | RP | 15.2 | 62 | .241 | .328 | .226 | 1.357 | .048 | .274 | .306 | 3.333 | 462 | 2.73 | 2.87 |
| Carlson, Jesse * | Blue Jays | RP | 15.1 | 57 | .167 | .333 | .164 | 2.000 | .000 | .164 | .327 | ----- | 256 | 1.86 | 1.17 |
| Casilla, S. + | Athletics | RP | 17.1 | 62 | .158 | .193 | .145 | 1.222 | .048 | .194 | .177 | 7.000 | 183 | 1.15 | 0.00 |
| Chamberlain, J. + | Yankees | RP | 14.1 | 57 | .196 | .294 | .175 | 1.500 | .088 | .263 | .263 | 3.200 | 380 | 2.30 | 3.14 |
| Chulk, Vinnie + | Giants | RP | 13.1 | 54 | .204 | .347 | .189 | 1.700 | .075 | .264 | .321 | 1.000 | 410 | 2.61 | 2.03 |
| Coffey, Todd + | Reds | RP | 15.1 | 69 | .300 | .517 | .261 | 1.722 | .087 | .348 | .449 | 0.833 | 960 | 5.60 | 6.46 |
| Colome, Jesus + | Nationals | RP | 20.0 | 88 | .225 | .296 | .188 | 1.313 | .118 | .306 | .247 | 2.000 | 465 | 3.10 | 3.15 |
| Condrey, Clay + | Phillies | RP | 12.2 | 57 | .300 | .480 | .273 | 1.600 | .073 | .345 | .436 | 1.500 | 916 | 5.83 | 6.39 |
| Corcoran, Roy + | Mariners | RP | 10.2 | 43 | .211 | .237 | .186 | 1.125 | .093 | .279 | .209 | 1.750 | 329 | 2.02 | 1.69 |
| Cordero, Chad + | Nationals | RP | 4.1 | 22 | .316 | .368 | .286 | 1.167 | .095 | .381 | .333 | 2.500 | 750 | 4.97 | 2.08 |
| Cordero, F. + | Reds | RP | 13.0 | 57 | .196 | .261 | .158 | 1.333 | .175 | .333 | .211 | 1.200 | 545 | 3.25 | 2.08 |
| Corey, Bryan + | Red Sox | RP | 6.0 | 31 | .407 | .593 | .367 | 1.455 | .067 | .433 | .533 | 2.000 | 1462 | 9.14 | 10.50 |
| Corpas, Manuel + | Rockies | RP | 19.0 | 88 | .333 | .507 | .294 | 1.520 | .094 | .388 | .447 | 1.000 | 1073 | 6.75 | 7.58 |
| Correia, Kevin + | Giants | RP | 26.0 | 109 | .255 | .480 | .229 | 1.880 | .101 | .330 | .431 | 1.455 | 790 | 4.62 | 4.50 |
| Crain, Jesse + | Twins | RP | 9.2 | 41 | .270 | .486 | .250 | 1.800 | .075 | .325 | .450 | 2.333 | 802 | 5.08 | 5.59 |
| Cruz, Juan + | Diamondbacks | RP | 12.2 | 51 | .154 | .205 | .118 | 1.333 | .196 | .314 | .157 | 1.400 | 463 | 2.77 | 1.42 |
| Delcarmen, M. + | Red Sox | RP | 13.1 | 63 | .309 | .527 | .270 | 1.706 | .079 | .349 | .460 | 2.600 | 1068 | 6.32 | 6.75 |
| Devine, Joey + | Athletics | RP | 13.1 | 53 | .200 | .220 | .189 | 1.100 | .057 | .245 | .208 | 5.000 | 263 | 1.62 | 0.68 |
| Dohmann, Scott + | Devil Rays | RP | 14.2 | 66 | .310 | .483 | .277 | 1.556 | .092 | .369 | .431 | 2.000 | 916 | 5.64 | 6.14 |
| Dolsi, Freddy + | Tigers | RP | 3.0 | 16 | .308 | .615 | .250 | 2.000 | .188 | .438 | .500 | 1.000 | 1503 | 8.85 | 3.00 |
| Dotel, Octavio + | White Sox | RP | 13.0 | 62 | .264 | .358 | .230 | 1.357 | .098 | .328 | .311 | 3.500 | 658 | 4.13 | 3.46 |
| Downs, Scott * | Blue Jays | RP | 14.2 | 69 | .276 | .397 | .242 | 1.438 | .076 | .318 | .348 | 3.200 | 702 | 4.72 | 3.07 |
| Embree, Alan * | Athletics | RP | 15.2 | 59 | .204 | .389 | .186 | 1.909 | .051 | .237 | .356 | 4.667 | 469 | 2.80 | 2.87 |
| Estes, Shawn * | Padres | RP | 1.2 | 9 | .250 | .250 | .222 | 1.000 | .111 | .333 | .222 | 2.000 | 478 | 2.85 | 0.00 |
| Farnsworth, K. + | Yankees | RP | 17.0 | 68 | .274 | .500 | .254 | 1.824 | .060 | .313 | .463 | 4.250 | 831 | 5.12 | 3.18 |
| Feldman, Scott + | Rangers | RP | 18.1 | 80 | .292 | .472 | .263 | 1.619 | .075 | .338 | .425 | 2.000 | 859 | 5.10 | 5.40 |
| Feliciano, P. * | Mets | RP | 10.2 | 48 | .317 | .390 | .277 | 1.231 | .106 | .383 | .340 | 1.800 | 874 | 5.40 | 0.84 |
| Figueroa, N. + | Mets | RP | 33.2 | 152 | .258 | .356 | .225 | 1.382 | .119 | .344 | .311 | 1.389 | 637 | 3.83 | 4.81 |
| Flores, Randy * | Cardinals | RP | 8.2 | 41 | .250 | .344 | .211 | 1.375 | .105 | .316 | .289 | 2.000 | 478 | 3.59 | 2.08 |
| Foulke, Keith + | Athletics | RP | 7.0 | 28 | .192 | .346 | .179 | 1.800 | .036 | .214 | .321 | 6.000 | 412 | 2.47 | 2.57 |
| Francisco, F. + | Rangers | RP | 7.0 | 32 | .269 | .423 | .219 | 1.571 | .156 | .375 | .344 | 1.400 | 841 | 5.02 | 3.86 |
| Franklin, Ryan + | Cardinals | RP | 17.0 | 74 | .231 | .369 | .203 | 1.600 | .081 | .284 | .324 | 1.333 | 491 | 2.91 | 2.12 |
| Frasor, Jason + | Blue Jays | RP | 9.2 | 38 | .242 | .303 | .211 | 1.250 | .105 | .316 | .263 | 2.250 | 458 | 2.79 | 2.79 |
| Fuentes, Brian * | Rockies | RP | 16.0 | 64 | .179 | .214 | .156 | 1.200 | .094 | .250 | .188 | 2.167 | 273 | 1.65 | 2.25 |
| Fukumori, K. + | Rangers | RP | 4.0 | 26 | .500 | .864 | .440 | 1.727 | .120 | .560 | .760 | 0.333 | 3328 | 20.24 | 20.25 |
| Gagne, Eric + | Brewers | RP | 14.2 | 69 | .263 | .509 | .217 | 1.933 | .145 | .362 | .420 | 1.700 | 1046 | 6.10 | 6.14 |
| Gallagher, S. + | Cubs | RP | 4.0 | 17 | .333 | .533 | .294 | 1.600 | .059 | .353 | .471 | 1.000 | 1046 | 6.08 | 4.50 |
| Gardner, Lee + | Marlins | RP | 6.2 | 38 | .424 | .758 | .368 | 1.786 | .105 | .474 | .658 | 1.000 | 2024 | 11.72 | 10.80 |
| Geary, Geoff + | Astros | RP | 14.0 | 60 | .176 | .275 | .153 | 1.556 | .119 | .271 | .237 | 2.143 | 406 | 2.57 | 1.93 |
| German, F. + | Rangers | RP | 16.0 | 66 | .173 | .231 | .136 | 1.333 | .167 | .303 | .182 | 1.273 | 374 | 2.29 | 0.56 |
| Glover, Gary + | Devil Rays | RP | 10.2 | 47 | .211 | .237 | .178 | 1.125 | .111 | .289 | .200 | 0.800 | 410 | 2.90 | 1.69 |
| Gobble, Jimmy * | Royals | RP | 6.2 | 31 | .231 | .385 | .194 | 1.667 | .129 | .323 | .323 | 2.500 | 597 | 3.58 | 5.40 |
| Gonzalez, E. + | Padres | RP | 3.1 | 15 | .308 | .615 | .267 | 2.000 | .133 | .400 | .533 | 0.500 | 1256 | 7.31 | 10.80 |
| Gordon, Tom + | Phillies | RP | 14.1 | 62 | .214 | .304 | .194 | 1.417 | .097 | .290 | .274 | 2.500 | 398 | 2.38 | 4.40 |
| Grabow, John * | Pirates | RP | 16.2 | 70 | .212 | .227 | .200 | 1.071 | .043 | .243 | .214 | 5.000 | 291 | 1.76 | 1.08 |
| Green, Sean + | Mariners | RP | 17.2 | 78 | .206 | .286 | .167 | 1.385 | .141 | .308 | .231 | 1.636 | 523 | 3.17 | 1.53 |
| Gregg, Kevin + | Marlins | RP | 16.2 | 72 | .237 | .288 | .197 | 1.214 | .113 | .310 | .239 | 1.500 | 509 | 3.17 | 3.24 |
| Grilli, Jason + | Tigers | RP | 13.2 | 59 | .235 | .373 | .207 | 1.583 | .103 | .310 | .328 | 1.667 | 640 | 4.03 | 3.29 |
| Grilli, Jason + | Rockies | RP | 5.1 | 21 | .316 | .368 | .286 | 1.167 | .095 | .381 | .333 | 3.000 | 750 | 4.43 | 3.38 |
| Guardado, E. * | Rangers | RP | 5.2 | 22 | .238 | .238 | .238 | 1.000 | .000 | .238 | .238 | ----- | 275 | 2.06 | 3.18 |
| Guerrier, Matt + | Twins | RP | 18.1 | 82 | .264 | .389 | .238 | 1.474 | .088 | .325 | .350 | 1.714 | 650 | 4.17 | 3.44 |
| Hansen, Craig + | Red Sox | RP | 4.1 | 19 | .235 | .412 | .211 | 1.750 | .105 | .316 | .368 | 1.500 | 702 | 4.18 | 6.23 |
| Hart, Kevin + | Cubs | RP | 16.0 | 76 | .262 | .431 | .227 | 1.647 | .120 | .347 | .373 | 1.444 | 869 | 5.26 | 5.06 |
| Hawkins, L. + | Yankees | RP | 16.2 | 71 | .302 | .429 | .271 | 1.421 | .086 | .357 | .386 | 1.167 | 827 | 5.10 | 7.02 |
| Heilman, Aaron + | Mets | RP | 19.1 | 90 | .243 | .446 | .202 | 1.833 | .101 | .303 | .371 | 2.333 | 824 | 4.97 | 4.66 |
| Hennessey, B. + | Giants | RP | 16.0 | 92 | .458 | .735 | .418 | 1.605 | .066 | .484 | .670 | 2.000 | 1992 | 11.74 | 12.94 |
| Herges, Matt + | Rockies | RP | 21.1 | 84 | .208 | .364 | .193 | 1.750 | .060 | .253 | .337 | 4.000 | 405 | 2.51 | 2.11 |
| Hernandez, F. + | Athletics | RP | 3.0 | 19 | .308 | .385 | .211 | 1.250 | .263 | .474 | .263 | 0.400 | 1328 | 7.97 | 18.00 |
| Hochevar, Luke + | Royals | RP | 23.2 | 103 | .250 | .370 | .223 | 1.478 | .107 | .330 | .330 | 1.727 | 619 | 3.71 | 4.94 |
| Hoffman, T. + | Padres | RP | 9.2 | 44 | .275 | .450 | .250 | 1.636 | .091 | .341 | .409 | 2.250 | 821 | 4.80 | 6.52 |
| Howry, Bob + | Cubs | RP | 16.1 | 77 | .357 | .614 | .333 | 1.720 | .000 | .333 | .573 | ----- | 1069 | 6.61 | 6.61 |
| Isringhausen, J. + | Cardinals | RP | 15.0 | 69 | .271 | .508 | .232 | 1.875 | .101 | .333 | .435 | 1.571 | 952 | 5.56 | 6.60 |
| Jenks, Bobby + | White Sox | RP | 13.1 | 53 | .255 | .319 | .235 | 1.250 | .059 | .294 | .294 | 2.667 | 430 | 2.98 | 2.03 |
| Jimenez, K. + | Cardinals | RP | 3.0 | 12 | .273 | .636 | .250 | 2.333 | .083 | .333 | .583 | 1.000 | 1057 | 6.13 | 3.00 |
| Johnson, Jim + | Orioles | RP | 18.0 | 66 | .133 | .150 | .123 | 1.125 | .062 | .185 | .138 | 1.500 | 138 | 0.96 | 0.50 |
| Jones, Todd + | Tigers | RP | 13.0 | 55 | .204 | .388 | .185 | 1.900 | .093 | .278 | .352 | 1.200 | 549 | 3.48 | 2.77 |
| Julio, Jorge + | Indians | RP | 13.1 | 54 | .213 | .340 | .185 | 1.600 | .130 | .315 | .296 | 1.429 | 531 | 3.20 | 3.38 |
| Kazmir, Scott * | Devil Rays | RP | 4.0 | 21 | .353 | .471 | .286 | 1.333 | .143 | .429 | .381 | 1.667 | 1004 | 6.00 | 6.75 |
| Kensing, Logan + | Marlins | RP | 16.2 | 71 | .155 | .241 | .130 | 1.556 | .145 | .275 | .203 | 1.200 | 375 | 2.50 | 2.70 |
| King, Ray * | Nationals | RP | 6.1 | 33 | .333 | .519 | .273 | 1.556 | .121 | .394 | .424 | 0.250 | 1217 | 7.11 | 5.68 |
| Kobayashi, M. + | Indians | RP | 16.1 | 68 | .273 | .379 | .265 | 1.389 | .029 | .294 | .368 | 4.500 | 571 | 3.41 | 2.20 |
| Korecky, Bobby + | Twins | RP | 3.2 | 16 | .308 | .462 | .250 | 1.500 | .188 | .438 | .375 | 0.667 | 1024 | 6.12 | 4.91 |
| League, B. + | Blue Jays | RP | 2.2 | 15 | .222 | .333 | .143 | 1.500 | .286 | .429 | .214 | 0.000 | 1061 | 7.32 | 6.75 |
| Ledezma, W. * | Padres | RP | 22.1 | 97 | .213 | .263 | .177 | 1.235 | .135 | .313 | .219 | 1.462 | 443 | 2.75 | 1.61 |
| Lewis, Jensen + | Indians | RP | 20.1 | 88 | .253 | .418 | .233 | 1.650 | .070 | .302 | .384 | 2.500 | 648 | 4.14 | 3.10 |
| Lidge, Brad + | Phillies | RP | 16.0 | 63 | .127 | .145 | .113 | 1.143 | .081 | .194 | .129 | 3.000 | 145 | 0.99 | 0.00 |
| Lincoln, Mike + | Reds | RP | 15.0 | 61 | .273 | .382 | .246 | 1.400 | .033 | .279 | .344 | 4.500 | 492 | 2.90 | 3.60 |
| Lindstrom, M. + | Marlins | RP | 10.1 | 49 | .325 | .400 | .271 | 1.231 | .125 | .396 | .333 | 1.333 | 850 | 5.26 | 5.23 |
| Linebrink, S. + | White Sox | RP | 13.0 | 54 | .245 | .367 | .222 | 1.500 | .093 | .315 | .333 | 1.400 | 569 | 3.41 | 2.08 |
| Littleton, Wes + | Rangers | RP | 8.1 | 40 | .313 | .375 | .250 | 1.200 | .100 | .350 | .300 | 0.750 | 878 | 5.28 | 8.64 |
| Logan, Boone * | White Sox | RP | 13.0 | 56 | .288 | .385 | .273 | 1.333 | .036 | .309 | .364 | 5.000 | 586 | 3.71 | 3.46 |
| Lopez, A. + | Tigers | RP | 22.1 | 89 | .256 | .372 | .247 | 1.455 | .011 | .258 | .360 | 16.000 | 462 | 2.77 | 2.01 |
| Lopez, Javier * | Red Sox | RP | 13.0 | 58 | .260 | .380 | .224 | 1.462 | .103 | .328 | .328 | 1.167 | 660 | 3.96 | 3.46 |
| Lowe, Mark + | Mariners | RP | 12.0 | 58 | .277 | .362 | .224 | 1.308 | .138 | .362 | .293 | 1.500 | 745 | 4.49 | 3.75 |
| Lyon, Brandon + | Diamondbacks | RP | 16.0 | 64 | .226 | .355 | .219 | 1.571 | .031 | .250 | .344 | 6.000 | 449 | 2.64 | 2.25 |
| MacDougal, M. + | White Sox | RP | 8.2 | 41 | .242 | .303 | .200 | 1.250 | .150 | .350 | .250 | 1.167 | 618 | 4.01 | 2.08 |
| Madson, Ryan + | Phillies | RP | 16.2 | 71 | .258 | .424 | .239 | 1.647 | .070 | .310 | .394 | 2.200 | 675 | 3.95 | 5.40 |
| Mahay, Ron * | Royals | RP | 15.2 | 67 | .254 | .356 | .224 | 1.400 | .090 | .313 | .313 | 2.333 | 539 | 3.24 | 1.72 |
| Marmol, Carlos + | Cubs | RP | 21.0 | 78 | .129 | .200 | .115 | 1.556 | .064 | .179 | .179 | 5.600 | 202 | 1.22 | 1.29 |
| Marte, Damaso * | Pirates | RP | 16.0 | 63 | .207 | .259 | .190 | 1.250 | .079 | .270 | .238 | 4.000 | 369 | 2.20 | 5.06 |
| Masset, Nick + | White Sox | RP | 16.2 | 75 | .281 | .469 | .247 | 1.667 | .096 | .342 | .411 | 2.571 | 820 | 5.22 | 4.86 |
| Masterson, J. + | Red Sox | RP | 6.0 | 23 | .105 | .263 | .087 | 2.500 | .174 | .261 | .217 | 1.000 | 382 | 2.31 | 1.50 |
| Mastny, Tom + | Indians | RP | 1.2 | 11 | .250 | .375 | .182 | 1.500 | .273 | .455 | .273 | 1.000 | 944 | 5.69 | 10.80 |
| McClellan, K. + | Cardinals | RP | 17.2 | 73 | .250 | .324 | .233 | 1.294 | .041 | .274 | .301 | 5.333 | 525 | 3.10 | 3.06 |
| McClung, Seth + | Brewers | RP | 15.2 | 69 | .232 | .393 | .188 | 1.692 | .159 | .348 | .319 | 1.545 | 694 | 4.09 | 4.02 |
| McCrory, Bob + | Orioles | RP | 0.2 | 8 | .667 | .667 | .250 | 1.000 | .500 | .750 | .250 | 0.000 | 4358 | 25.78 | 54.00 |
| Medders, B. + | Diamondbacks | RP | 17.0 | 72 | .190 | .241 | .155 | 1.273 | .113 | .268 | .197 | 0.875 | 360 | 2.28 | 2.65 |
| Meek, Evan + | Pirates | RP | 13.0 | 61 | .239 | .522 | .186 | 2.182 | .169 | .356 | .407 | 0.700 | 1029 | 6.47 | 6.92 |
| Mendoza, Luis + | Rangers | RP | 9.2 | 55 | .391 | .522 | .327 | 1.333 | .127 | .455 | .436 | 0.571 | 1564 | 9.26 | 9.31 |
| Mercker, Kent * | Reds | RP | 11.2 | 51 | .279 | .419 | .240 | 1.500 | .120 | .360 | .360 | 1.000 | 778 | 4.81 | 3.86 |
| Meredith, Cla + | Padres | RP | 16.0 | 62 | .250 | .339 | .230 | 1.357 | .033 | .262 | .311 | 4.500 | 413 | 2.60 | 3.38 |
| Miller, Justin + | Marlins | RP | 17.0 | 72 | .222 | .333 | .194 | 1.500 | .111 | .306 | .292 | 1.750 | 512 | 3.03 | 2.65 |
| Miller, Trever * | Devil Rays | RP | 9.1 | 44 | .270 | .351 | .227 | 1.300 | .159 | .386 | .295 | 1.429 | 711 | 4.29 | 5.79 |
| Miner, Zach + | Tigers | RP | 18.1 | 88 | .301 | .479 | .253 | 1.591 | .126 | .379 | .402 | 1.091 | 955 | 5.82 | 9.33 |
| Misch, Patrick * | Giants | RP | 10.0 | 43 | .256 | .590 | .233 | 2.300 | .070 | .302 | .535 | 2.667 | 912 | 5.29 | 5.40 |
| Moehler, Brian + | Astros | RP | 7.2 | 38 | .314 | .514 | .289 | 1.636 | .079 | .368 | .474 | 1.000 | 938 | 5.49 | 7.04 |
| Morrow, B. + | Mariners | RP | 6.1 | 25 | .174 | .304 | .160 | 1.750 | .080 | .240 | .280 | 3.500 | 371 | 2.24 | 1.42 |
| Moseley, D. + | Angels | RP | 28.2 | 139 | .352 | .557 | .309 | 1.581 | .086 | .396 | .489 | 1.750 | 1209 | 7.14 | 7.85 |
| Mota, G. + | Brewers | RP | 15.0 | 67 | .241 | .315 | .194 | 1.308 | .149 | .343 | .254 | 1.800 | 589 | 3.49 | 2.40 |
| Moylan, Peter + | Braves | RP | 5.2 | 25 | .217 | .348 | .200 | 1.600 | .040 | .240 | .320 | 5.000 | 510 | 3.01 | 1.59 |
| Muniz, Carlos + | Mets | RP | 4.0 | 13 | .154 | .231 | .154 | 1.500 | .000 | .154 | .231 | ----- | 129 | 0.78 | 0.00 |
| Murray, A.J. * | Rangers | RP | 5.1 | 25 | .261 | .348 | .240 | 1.333 | .080 | .320 | .320 | 1.000 | 520 | 3.14 | |