Single-Season Winning Pct
Leaderboard
 
* - Indicates Hall of Fame
Rank    Player Winning Pct IP Year Career Leaderboard
1.    Lewis Washburn .9643 257.7 2019  
2.    Silvio Santacruz .9545 255.0 2019  
  J.D. Martin .9545 231.0 2018  
4.    Larry Strope .9286 261.0 2009  
5.    Dennis Baley .9231 253.7 2022  
6.    Amadeo Samaniego .8947 188.3 2016  
7.    Augustine Stearn .8929 242.0 2022  
8.    Mark Prior * .8889 206.3 2014  
9.    Daniel Scott .8846 243.0 2015  
  Roy Halladay .8846 240.7 2008  
11.    Felipe Granados .8800 241.3 2020  
  Condel Ortiz .8800 257.3 2017  
13.    Thomas Gries .8750 222.3 2018  
  Freddie Cooley .8750 257.3 2016  
  Mark Prior * .8750 260.7 2005  
16.    Lewis Washburn .8696 239.0 2021  
  Joseph Delagarza .8696 224.7 2021  
18.    J.D. Martin .8636 245.0 2010  
19.    Augustine Stearn .8621 248.3 2021  
  Roger Heitman .8621 249.0 2013  
21.    Roger Heitman .8571 235.3 2018  
  Bennie Hamblin .8571 224.0 2017  
  Jason Schmidt .8571 261.3 2005  
24.    Steven Hildebrant .8519 226.0 2022  
  Roy Halladay .8519 275.0 2009  
26.    Silvio Santacruz .8462 232.7 2020  
  Dontrelle Willis .8462 220.0 2006  
  Roy Oswalt .8462 235.0 2005  
29.    J.D. Martin .8333 234.3 2019  
  J.D. Martin .8333 224.3 2017  
  Carlos Zambrano .8333 212.7 2016  
  J.D. Martin .8333 209.7 2016  
  Freddie Cooley .8333 263.3 2013  
34.    Mark Prior * .8276 244.3 2011  
35.    Paul Hageman .8261 212.7 2020  
36.    Joseph Delagarza .8235 169.0 2019  
  Willie Leon .8235 160.0 2018  
  Matt Clement .8235 163.7 2004  
39.    Zachery Hickman .8214 245.0 2022  
  Willie Leon .8214 250.7 2020  
  Silvio Santacruz .8214 253.3 2017  
42.    Anthony Lezama .8182 246.7 2017  
  Hosea Buendia .8182 228.3 2015  
  Stanley Middaugh .8182 204.7 2015  
  Rick Ankiel .8182 205.7 2013  
  Josh Beckett .8182 221.0 2006  
  Josh Beckett .8182 228.3 2004  
48.    Mark Prior * .8148 252.3 2013  
  Roy Halladay .8148 268.7 2010  
  Mark Buehrle .8148 259.0 2005  
51.    Korey Mathison .8125 261.7 2019  
  Mark Prior * .8125 185.7 2015  
53.    J.D. Martin .8095 216.0 2020  
  Tony Armas .8095 167.0 2011  
55.    Brian Anderson .8077 263.7 2020  
  Jeremy Bonderman .8077 238.7 2012  
57.    Nick Younker .8000 240.3 2019  
  Steven Maney .8000 215.7 2016  
59.    Mark Prior * .7931 279.3 2009  
60.    Eric Losey .7917 245.7 2021  
  Amadis Rodriguez .7917 227.0 2021  
  Randy Wolf .7917 220.0 2009  
63.    Brian Anderson .7857 239.0 2022  
  Glen Rakestraw .7857 239.7 2010  
65.    Anthony Lezama .7826 244.3 2018  
  J.D. Martin .7826 257.7 2009  
  Mark Prior * .7826 264.0 2006  
  Kazuhisa Ishii .7826 184.3 2006  
69.    Korey Mathison .7813 290.7 2021  
70.    Lewis Washburn .7778 238.0 2022  
  Jonathan Nabors .7778 113.3 2020  
  Roger Heitman .7778 266.3 2012  
  Mark Prior * .7778 238.7 2008  
  Larry Strope .7778 237.3 2008  
  Matt Morris .7778 235.7 2007  
  Jay Witasick .7778 171.7 2005  
  Roy Oswalt .7778 268.7 2004  
78.    David Martinez .7742 265.0 2019  
  Javier Vazquez .7742 280.7 2009  
80.    Josef Soliz .7727 207.7 2020  
  Roy Halladay .7727 243.0 2012  
  Felix Hernandez .7727 186.0 2012  
  Toshikazu Yoshiaki .7727 182.7 2009  
84.    Brian Anderson .7692 285.3 2019  
  Roger Heitman .7692 224.0 2019  
  Augustine Stearn .7692 236.7 2018  
  Richard Menzies .7692 210.7 2015  
  Roger Heitman .7692 210.7 2015  
  Willian Larson .7692 213.3 2014  
  Josh Beckett .7692 222.7 2008  
91.    William Gibson .7647 142.0 2019  
  Paul Hageman .7647 186.3 2018  
  Ryan Jameson .7647 149.7 2017  
  Rick Ankiel .7647 200.7 2012  
  Rich Harden .7647 120.0 2005  
96.    Kevin Rockey .7619 216.3 2019  
  Mark Prior * .7619 227.7 2018  
  Roger Heitman .7619 170.7 2017  
  Mark Prior * .7619 210.3 2016  
  Ronald Bay .7619 174.3 2013