Yusmeiro Petit was a very important part of the Athletics bullpen this season. He appeared in 74 games and went 7-4 with a 139 ERA+. He only had 76 K’s in 93 innings, but he only allowed 76 hits. This was his second strong season in a row coming out of the pen–he was great in 2017 with the Angels as well. He is 33 years old but should have a couple more nice season in the tank.
| Year | Age | Tm | Lg | W | L | ERA | G | GS | SV | IP | H | BB | SO | ERA+ | FIP | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2006 | 21 | FLA | NL | 1 | 1 | 9.57 | 15 | 1 | 0 | 26.1 | 46 | 9 | 20 | 46 | 6.11 | 2.089 |
| 2007 | 22 | ARI | NL | 3 | 4 | 4.58 | 14 | 10 | 0 | 57.0 | 58 | 18 | 40 | 104 | 5.52 | 1.333 |
| 2008 | 23 | ARI | NL | 3 | 5 | 4.31 | 19 | 8 | 0 | 56.1 | 45 | 14 | 42 | 107 | 5.21 | 1.047 |
| 2009 | 24 | ARI | NL | 3 | 10 | 5.82 | 23 | 17 | 0 | 89.2 | 102 | 34 | 74 | 77 | 5.34 | 1.517 |
| 2012 | 27 | SFG | NL | 0 | 0 | 3.86 | 1 | 1 | 0 | 4.2 | 7 | 4 | 1 | 100 | 5.24 | 2.357 |
| 2013 | 28 | SFG | NL | 4 | 1 | 3.56 | 8 | 7 | 0 | 48.0 | 46 | 11 | 47 | 97 | 2.86 | 1.188 |
| 2014 | 29 | SFG | NL | 5 | 5 | 3.69 | 39 | 12 | 0 | 117.0 | 97 | 22 | 133 | 94 | 2.78 | 1.017 |
| 2015 | 30 | SFG | NL | 1 | 1 | 3.67 | 42 | 1 | 1 | 76.0 | 75 | 15 | 59 | 105 | 4.09 | 1.184 |
| 2016 | 31 | WSN | NL | 3 | 5 | 4.50 | 36 | 1 | 1 | 62.0 | 67 | 15 | 49 | 95 | 4.81 | 1.323 |
| 2017 | 32 | LAA | AL | 5 | 2 | 2.76 | 60 | 1 | 4 | 91.1 | 69 | 18 | 101 | 154 | 2.85 | 0.953 |
| 2018 | 33 | OAK | AL | 7 | 3 | 3.00 | 74 | 0 | 0 | 93.0 | 76 | 18 | 76 | 139 | 3.92 | 1.011 |
| 11 Y | 11 Y | 11 Y | 11 Y | 35 | 37 | 4.14 | 331 | 59 | 6 | 721.1 | 688 | 178 | 642 | 99 | 4.12 | 1.201 |
| 162 | 162 | 162 | 162 | 6 | 6 | 4.14 | 58 | 10 | 1 | 126 | 120 | 31 | 112 | 99 | 4.12 | 1.201 |