| 1904 PCL Mid-Season Individual Pitching Leaders | ||||||||||
| # | Pos | Name | Team | W | # | Pos | Name | Team | SV | |
| 1 | P | Saiz, Rosendo | Arkansas Travelers | 13 | 1 | P | Salazar, Stuart | Denver Bears | 29 | |
| 2 | P | Churchill, Ryan | Denver Bears | 12 | 2 | P | Phillips, Brian | L A Angels | 26 | |
| 3 | P | Geib, Delmar | Arkansas Travelers | 12 | 3 | P | Foster, John | Oakland Oaks | 25 | |
| 4 | P | Cordell, Scott | Vernon Tigers | 11 | 4 | P | Martin, Keith | Vernon Tigers | 25 | |
| 5 | P | Johnson, William | Denver Bears | 11 | 5 | P | Howard, Noel | Portland Beavers | 22 | |
| 6 | P | Lopez, David | L A Angels | 11 | 6 | P | Hunter, John | Eugene Emeralds | 21 | |
| 7 | P | Rucker, Christopher | Vernon Tigers | 11 | 7 | P | Gonzalez, Scott | Vancouver Mounties | 20 | |
| 6 tied with 10 | 8 | P | Thomas, Richard | Seattle Rainiers | 20 | |||||
| 9 | P | Eagle, Thomas | Arkansas Travelers | 19 | ||||||
| 10 | P | Edmonds, Bryan | Sacramento Solons | 19 | ||||||
| # | Pos | Name | Team | SO | # | Pos | Name | Team | IP | |
| 1 | P | Curtin, Barry | Seattle Rainiers | 141 | 1 | P | Wargo, Alex | Vernon Tigers | 140.2 | |
| 2 | P | Green, Gregory | Portland Beavers | 132 | 2 | P | Cromartie, Frank | Spokane Indians | 140.0 | |
| 3 | P | Cassidy, Juan | Arkansas Travelers | 122 | 3 | P | Walsh, Thomas | Sacramento Solons | 135.1 | |
| 4 | P | Lopez, David | L A Angels | 120 | 4 | P | Bailey, Manuel | Spokane Indians | 134.2 | |
| 5 | P | Burgos, Michael | Phoenix Firebirds | 118 | 5 | P | Saiz, Rosendo | Arkansas Travelers | 133.0 | |
| 6 | P | Gibson, Doug | Eugene Emeralds | 117 | 6 | P | Rucker, Christopher | Vernon Tigers | 131.2 | |
| 7 | P | Robinson, Ricky | San Diego Padres | 113 | 7 | P | Key, James | Tacoma Wanderers | 131.1 | |
| 8 | P | Graves, Daryl | Seattle Rainiers | 110 | 8 | P | Shaw, Christopher | Tulsa Oilers | 129.0 | |
| 9 | P | Anderson, Daniel | Portland Beavers | 106 | 9 | P | Washington, Douglas | Eugene Emeralds | 127.1 | |
| 10 | P | Washington, Douglas | Eugene Emeralds | 106 | 10 | P | Ashley, Ellsworth | San Diego Padres | 126.0 | |
| # | Pos | Name | Team | CG | # | Pos | Name | Team | ShO | |
| 1 | P | Cromartie, Frank | Spokane Indians | 12 | 1 | P | Cain, Don | Albuquerque Dukes | 3 | |
| 2 | P | Bailey, Manuel | Spokane Indians | 11 | 2 | P | Cassidy, Juan | Arkansas Travelers | 3 | |
| 3 | P | Lanctot, Gerard | Spokane Indians | 11 | 3 | P | Saiz, Rosendo | Arkansas Travelers | 3 | |
| 4 | P | Joiner, Martin | Oklahoma City 89ers | 10 | 4 | P | Shaw, Christopher | Tulsa Oilers | 3 | |
| 5 | P | Key, James | Tacoma Wanderers | 10 | 5 | P | Bailey, Manuel | Spokane Indians | 2 | |
| 6 | P | Saiz, Rosendo | Arkansas Travelers | 10 | 6 | P | Green, Gregory | Portland Beavers | 2 | |
| 7 | P | Shaw, Christopher | Tulsa Oilers | 10 | 7 | P | Joiner, Martin | Oklahoma City 89ers | 2 | |
| 8 | P | Wargo, Alex | Vernon Tigers | 9 | 8 | P | Key, James | Tacoma Wanderers | 2 | |
| 9 | P | Walsh, Thomas | Sacramento Solons | 8 | 9 | P | Lanctot, Gerard | Spokane Indians | 2 | |
| 3 tied with 7 | 10 | P | Walsh, Thomas | Sacramento Solons | 2 | |||||
| 11 | P | Willson, Antony | San Diego Padres | 2 | ||||||
| # | Pos | Name | Team | ERA | # | Pos | Name | Team | ERA | |
| 1 | SP | Sutton, Craig | Spokane Indians | 1.20 | 1 | RP | Stacy, Chris | San Diego Padres | 0.64 | |
| 2 | SP | Dallas, Kevin | Eugene Emeralds | 1.54 | 2 | RP | Eagle, Thomas | Arkansas Travelers | 1.27 | |
| 3 | SP | Walsh, Thomas | Sacramento Solons | 1.60 | 3 | RP | Salazar, Stuart | Denver Bears | 1.31 | |
| 4 | SP | Taylor, Patrick | Phoenix Firebirds | 1.65 | 4 | RP | Gonzalez, Scott | Vancouver Mounties | 1.82 | |
| 5 | SP | Saiz, Rosendo | Arkansas Travelers | 2.03 | 5 | RP | Lawrence, Gary | Seattle Rainiers | 1.82 | |
| 6 | SP | Williams, Scott | Vancouver Mounties | 2.10 | 6 | RP | Howard, Noel | Portland Beavers | 1.91 | |
| 7 | SP | Johansson, Steve | Vernon Tigers | 2.16 | 7 | RP | Stanton, James | Hollywood Stars | 1.98 | |
| 8 | SP | Phillips, Leo | Phoenix Firebirds | 2.20 | 8 | RP | Stewart, William | Tulsa Oilers | 2.02 | |
| 9 | SP | Johnson, William | Denver Bears | 2.21 | 9 | RP | Coker, Knox | Fresno Grizzlies | 2.12 | |
| 10 | SP | Chan, Shawn | San Diego Padres | 2.27 | 10 | RP | Sommer, Trent | Albuquerque Dukes | 2.15 | |
| # | Pos | Name | Team | WHIP | # | Pos | Name | Team | WHIP | |
| 1 | SP | Burgos, Michael | Phoenix Firebirds | 0.84 | 1 | RP | Stacy, Chris | San Diego Padres | 0.57 | |
| 2 | SP | Taylor, Patrick | Phoenix Firebirds | 0.87 | 2 | RP | Pacheco, Timothy | Sacramento Solons | 0.87 | |
| 3 | SP | Dallas, Kevin | Eugene Emeralds | 0.90 | 3 | RP | Soto, Kim | Denver Bears | 0.93 | |
| 4 | SP | Cromartie, Frank | Spokane Indians | 0.91 | 4 | RP | Reeve, David | Seattle Rainiers | 0.97 | |
| 5 | SP | Walsh, Thomas | Sacramento Solons | 0.93 | 5 | RP | Lawrence, Gary | Seattle Rainiers | 1.03 | |
| 6 | SP | Gardner, Cody | Albuquerque Dukes | 0.98 | 6 | RP | Foster, John | Oakland Oaks | 1.05 | |
| 7 | SP | Anderson, Daniel | Portland Beavers | 0.98 | 7 | RP | Eagle, Thomas | Arkansas Travelers | 1.05 | |
| 8 | SP | Sanchez, Matthew | Hawaii Islanders | 1.02 | 8 | RP | Morgan, James | Salt Lake City Bees | 1.08 | |
| 9 | SP | Shaw, Christopher | Tulsa Oilers | 1.02 | 9 | RP | Salazar, Stuart | Denver Bears | 1.08 | |
| 3 tied at 1.03 | 2 tied at 2.09 | |||||||||