| Year | W | L | Sv | Hold | IP | H | BB | SO | ER | ERA | WHIP | Rate |
| 2020 | 0 | 2 | 0 | 0 | 16.7 | 21 | 4 | 6 | 18 | 9.72 | 1.500 | -40.8 |
| 2019 | 11 | 12 | 0 | 0 | 181.3 | 152 | 49 | 140 | 71 | 3.52 | 1.108 | 57.6 |
| 2018 | 1 | 5 | 0 | 0 | 44.7 | 47 | 26 | 30 | 31 | 6.25 | 1.634 | -13.3 |
| 2017 | 9 | 15 | 0 | 0 | 207.7 | 204 | 32 | 205 | 102 | 4.42 | 1.136 | 35.0 |
| 2016 | 12 | 11 | 0 | 0 | 203.3 | 190 | 54 | 167 | 86 | 3.81 | 1.200 | 49.6 |
| 2015 | 11 | 13 | 0 | 0 | 214.0 | 228 | 49 | 163 | 118 | 4.96 | 1.294 | 6.2 |
| 2014 | 7 | 13 | 0 | 0 | 219.7 | 191 | 43 | 202 | 73 | 2.99 | 1.065 | 77.0 |
| 2013 | 8 | 13 | 0 | 0 | 213.7 | 210 | 78 | 214 | 103 | 4.34 | 1.348 | 26.3 |
| 2012 | 9 | 13 | 0 | 0 | 174.7 | 157 | 56 | 180 | 74 | 3.81 | 1.219 | 43.5 |
| 2011 | 8 | 4 | 0 | 0 | 88.0 | 64 | 50 | 87 | 29 | 2.97 | 1.295 | 35.0 |
| 2010 | 2 | 2 | 0 | 0 | 19.3 | 21 | 20 | 9 | 18 | 8.38 | 2.121 | -11.1 |
| 2009 | 1 | 3 | 0 | 0 | 34.7 | 46 | 15 | 21 | 29 | 7.53 | 1.760 | -17.0 |
| 2008 | 1 | 0 | 1 | 0 | 27.7 | 24 | 15 | 25 | 7 | 2.28 | 1.410 | 12.2 |
| Date | News |
| 6/06/22 | How Cubs could repeat embarrassing history with Willson Contreras. Bad enough the Cubs are rebuilding again already, but now they're poised to repeat the Jeff Samardzija All-Star cringe with Willson Contreras. Source: https://sports.yahoo.com/cubs-could-repeat-embarra... |
| 11/22/21 | MLB rumors: Ex-Yankees, Mets outfielder set to become a free agent. The 27-year-old McKinney began his MLB journey as a first-round pick of the Oakland A’s in the 2013 MLB Draft. One year later, the A’s sent McKinney to the Chicago Cubs as part of the trade for right-hander Jeff Samardzija. The Yankees acquired McKinney in 2016 from Chicago in the deal which sent closer Aroldis Chapman to the Cubs. Source: https://www.nj.com/yankees/2021/11/mlb-rumors-ex-y... |