| 12/31/2016 | ||||||
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| K |
| Name | Pos | Team | Age | DOB | POB | Nationality | Bats | Throws | Height | Weight | Salary |
| Kamida, Tatsuzo | 1B | Carolina Crush | 28 | 07/08/1988 | Furukawa | JPN | Right | Right | 6' 1" | 245 lbs | $500,000 |
| Kaneko, Hirotsugu | SS | San Diego Hops | 25 | 06/13/1991 | Otsu | JPN | Left | Right | 6' 1" | 215 lbs | $500,000 |
| Kanno, Kazuhiko | SP | San Diego Hops | 23 | 09/20/1993 | Hasaki | JPN | Right | Right | 5' 8" | 210 lbs | $500,000 |
| Kato, Tadasuke | SP | So Cal Republic | 24 | 09/14/1992 | Shibetsu | JPN | Left | Left | 6' 1" | 210 lbs | - |
| Kawasaki, Yoshitaka | 3B | Free Agent | 22 | 11/10/1994 | Kobe | JPN | Right | Right | 6' 2" | 200 lbs | - |
| Kelly, Ken | SS | Free Agent | 34 | 07/30/1982 | Bloomington | USA | Right | Right | 6' 0" | 205 lbs | - |
| Kelly, Peter | 2B | Minnesota Berserkers | 21 | 11/14/1995 | Queens | USA | Switch | Right | 6' 1" | 190 lbs | $1,200,000 |
| Kenney, Stu | MR | Montreal Bandits | 28 | 06/23/1988 | Houma | USA | Left | Left | 6' 7" | 201 lbs | $500,000 |
| King, Kent | MR | Dallas Texans | 30 | 09/27/1986 | Eureka | USA | Left | Right | 6' 7" | 209 lbs | $1,000,000 |
| King, Leon | MR | Maple Marauders | 22 | 10/25/1994 | Modesto | USA | Left | Left | 6' 1" | 205 lbs | $500,000 |
| King, Ted | C | Washington Capitalists | 28 | 02/15/1988 | Nashville | USA | Right | Right | 5' 10" | 210 lbs | $1,155,000 |
| Kiyomizu, Hideyori | 1B | Cabo San Lucas Toreros | 28 | 09/26/1988 | Kashiba | JPN | Left | Left | 6' 0" | 222 lbs | $3,490,000 |
| Klein, Peter | CL | Dallas Texans | 35 | 10/28/1981 | Carroll | USA | Switch | Right | 6' 0" | 212 lbs | $3,970,000 |
| Klein, Tom | RF | San Francisco Earthquakes | 29 | 09/27/1987 | Orlando | USA | Switch | Right | 6' 0" | 190 lbs | $11,055,188 |
| Knight, Dorian | C | San Diego Hops | 25 | 06/06/1991 | Los Angeles | USA | Right | Right | 6' 2" | 230 lbs | $7,000,000 |
| Knisley, Jay | C | Jacksonville Jacks | 27 | 12/24/1989 | Cincinnati | USA | Right | Right | 5' 11" | 205 lbs | $500,000 |
| Ko, Ka-byong | CL | Free Agent | 28 | 05/15/1988 | Seoul | KOR | Switch | Right | 6' 3" | 203 lbs | - |
| Kobayashi, Takanibu | CF | Cabo San Lucas Toreros | 26 | 08/02/1990 | Kitakyushu | JPN | Right | Right | 6' 0" | 170 lbs | $2,380,000 |
| Koda, Toshiki | SP | Eureka Hornets | 21 | 05/22/1995 | Hoya | JPN | Right | Right | 6' 0" | 215 lbs | $2,000,000 |
| Kogawa, Mashashi | 3B | Mile High Mustangs | 26 | 01/28/1990 | Osaka | JPN | Switch | Right | 6' 2" | 193 lbs | $500,000 |
| Kouda, Naofumi | CL | South Bend Shamrocks | 25 | 12/21/1991 | Kobe | JPN | Right | Right | 6' 3" | 210 lbs | $500,000 |
| Kuhn, Ernie | MR | Free Agent | 34 | 07/17/1982 | Laurel | USA | Right | Right | 6' 3" | 238 lbs | - |
