For single seasons, From 2009 to 2011, During first season , (requiring At least 60% games started and At least 80 Innings Pitched), sorted by smallest Earned Run Average: Results

generated by a site user

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User's Notes:
Rk Player ERA IP Year Age Tm Lg G GS CG SHO GF W L W-L% SV H R ER BB SO ERA HR BF AB 2B 3B IBB HBP SH SF GDP SB CS PO BK WP BA OBP SLG OPS OPS Pit Str
1 Tommy Hanson 2.89 127.2 2009 22 ATL NL 21 21 0 0 0 11 4 .733 0 105 42 41 46 116 143 10 522 466 22 5 1 5 4 1 13 18 8 1 0 2 .225 .301 .358 .660 79 1986 1264
2 Josh Collmenter 3.38 154.1 2011 25 ARI NL 31 24 0 0 3 10 10 .500 0 137 61 58 28 100 118 17 621 577 26 1 2 5 9 2 4 4 7 0 1 1 .237 .278 .374 .652 79 2436 1628
3 Brad Bergesen 3.43 123.1 2009 23 BAL AL 19 19 1 0 0 7 5 .583 0 126 52 47 32 65 133 11 519 475 30 0 4 5 3 4 12 1 3 0 0 2 .265 .316 .398 .714 86 1864 1207
4 Travis Wood 3.51 102.2 2010 23 CIN NL 17 17 0 0 0 5 4 .556 0 85 45 40 26 86 116 9 419 383 16 1 1 4 3 3 6 0 0 0 1 0 .222 .276 .339 .616 68 1613 1050
5 Michael Pineda 3.74 171.0 2011 22 SEA AL 28 28 0 0 0 9 10 .474 0 133 76 71 55 173 103 18 696 629 24 2 1 5 4 3 5 10 10 0 0 9 .211 .279 .342 .621 76 2688 1788
6 Kenshin Kawakami 3.86 156.1 2009 34 ATL NL 32 25 0 0 3 7 12 .368 1 153 73 67 57 105 107 15 669 589 40 10 6 6 10 7 12 6 5 0 1 8 .260 .328 .438 .766 106 2471 1553
7 Barry Enright 3.91 99.0 2010 24 ARI NL 17 17 0 0 0 6 7 .462 0 97 43 43 29 49 109 20 410 371 19 3 0 1 8 1 13 6 3 1 0 0 .261 .316 .491 .806 114 1483 962
8 Rick Porcello 3.96 170.2 2009 20 DET AL 31 31 0 0 0 14 9 .609 0 176 81 75 52 89 114 23 720 659 27 1 0 3 4 2 24 8 2 1 1 6 .267 .323 .416 .738 92 2726 1695
9 Brett Anderson 4.06 175.1 2009 21 OAK AL 30 30 1 1 0 11 11 .500 0 180 94 79 45 150 108 20 735 679 29 1 1 3 4 4 24 14 4 4 1 0 .265 .312 .399 .711 87 2818 1795
10 Mike Leake 4.23 138.1 2010 22 CIN NL 24 22 0 0 0 8 4 .667 0 158 77 65 49 91 96 19 604 542 28 1 2 3 7 3 19 5 3 1 0 2 .292 .352 .452 .804 119 2131 1317
11 Blake Beavan 4.27 97.0 2011 22 SEA AL 15 15 0 0 0 5 6 .455 0 106 46 46 15 42 90 13 405 381 26 2 0 3 1 5 6 6 3 0 0 4 .278 .307 .459 .766 115 1478 982
12 Ricky Romero 4.30 178.0 2009 24 TOR AL 29 29 0 0 0 13 9 .591 0 192 88 85 79 141 103 18 771 676 39 1 0 10 3 3 30 9 7 4 1 6 .284 .366 .425 .790 108 2989 1814
13 Zach Britton 4.61 154.1 2011 23 BAL AL 28 28 0 0 0 11 11 .500 0 162 93 79 62 97 89 12 666 588 31 1 3 1 8 7 25 7 3 0 0 7 .276 .342 .393 .735 102 2509 1498
14 Jordan Zimmermann 4.63 91.1 2009 23 WSN NL 16 16 0 0 0 3 5 .375 0 95 51 47 29 92 92 10 391 350 17 4 0 4 5 3 6 8 5 2 0 0 .271 .332 .429 .760 105 1575 1059
15 Trevor Cahill 4.63 178.2 2009 21 OAK AL 32 32 0 0 0 10 13 .435 0 185 99 92 72 90 95 27 773 686 45 6 1 4 4 7 18 17 10 2 0 5 .270 .339 .471 .810 112 3006 1776
16 Jake Arrieta 4.66 100.1 2010 24 BAL AL 18 18 0 0 0 6 6 .500 0 106 57 52 48 52 89 9 449 391 24 2 3 4 4 2 10 11 1 2 0 5 .271 .355 .412 .767 110 1718 1037
17 Tyler Chatwood 4.75 142.0 2011 21 LAA AL 27 25 0 0 0 6 11 .353 0 166 81 75 71 74 80 14 633 547 30 2 4 6 6 3 26 12 7 1 1 3 .303 .388 .442 .830 135 2418 1433
18 Sean West 4.79 103.1 2009 23 FLA NL 20 20 0 0 0 8 6 .571 0 115 62 55 44 70 90 11 467 411 29 4 0 3 5 4 12 3 0 0 0 3 .280 .351 .450 .801 113 1705 1063
19 Craig Stammen 5.11 105.2 2009 25 WSN NL 19 19 1 0 0 4 7 .364 0 112 67 60 24 48 83 14 448 414 33 2 1 3 4 3 4 17 2 0 0 7 .271 .313 .461 .774 108 1584 989
20 Luis Atilano 5.15 85.2 2010 25 WSN NL 16 16 0 0 0 6 7 .462 0 96 56 49 32 40 79 11 385 341 25 3 5 2 7 3 4 1 3 0 1 1 .282 .344 .469 .813 123 1451 907
21 Brett Cecil 5.30 93.1 2009 22 TOR AL 18 17 0 0 1 7 4 .636 0 116 59 55 38 69 84 17 422 377 24 2 0 5 0 2 10 4 4 0 0 0 .308 .377 .517 .894 133 1605 992
22 Vin Mazzaro 5.32 91.1 2009 22 OAK AL 17 17 0 0 0 4 9 .308 0 120 61 54 39 59 83 12 423 376 25 1 3 4 1 3 7 8 3 1 0 5 .319 .386 .487 .873 131 1658 1025
23 Jordan Lyles 5.36 94.0 2011 20 HOU NL 20 15 0 0 2 2 8 .200 0 107 61 56 26 67 71 14 415 376 21 5 1 5 7 1 6 4 0 1 0 0 .285 .338 .479 .817 129 1573 995
24 David Hernandez 5.42 101.1 2009 24 BAL AL 20 19 0 0 0 4 10 .286 0 118 62 61 46 68 84 27 462 410 24 2 0 1 2 3 5 8 2 0 0 3 .288 .359 .554 .912 135 1925 1183
25 John Ely 5.49 100.0 2010 24 LAD NL 18 18 0 0 0 4 10 .286 0 105 63 61 40 76 71 12 430 380 25 4 2 2 4 4 13 4 3 1 0 4 .276 .345 .458 .803 124 1633 1000
Rk Player ERA IP Year Age Tm Lg G GS CG SHO GF W L W-L% SV H R ER BB SO ERA HR BF AB 2B 3B IBB HBP SH SF GDP SB CS PO BK WP BA OBP SLG OPS OPS Pit Str
26 David Huff 5.61 128.1 2009 24 CLE AL 23 23 0 0 0 11 8 .579 0 159 82 80 41 65 76 16 574 528 40 4 1 1 2 2 13 7 1 0 0 1 .301 .351 .483 .834 122 2250 1407
27 Danny Duffy 5.64 105.1 2011 22 KCR AL 20 20 0 0 0 4 8 .333 0 119 66 66 51 87 73 15 474 414 24 8 1 5 2 2 6 11 9 7 1 4 .287 .371 .493 .864 135 1955 1210
28 Derek Holland 6.12 138.1 2009 22 TEX AL 33 21 1 1 0 8 13 .381 0 160 98 94 47 107 76 26 611 555 37 4 0 4 2 3 13 8 3 3 3 3 .288 .346 .510 .856 118 2233 1415
29 Jason Berken 6.54 119.2 2009 25 BAL AL 24 24 0 0 0 6 12 .333 0 164 92 87 44 66 70 19 560 502 35 3 2 6 3 5 13 12 3 0 1 0 .327 .384 .522 .906 135 2042 1253
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Generated 6/26/2012.

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