| Joseph Camacho | P | Minors | N | 5-9 |
170 |
R-R |
1994-06-23 |
24.237 | El Paso,Texas |
 | AAA | 2013-2018 | - | | 2018-07-02 | Assigned to Beloit (A) | 2018-06-13 |
| Wandisson Charles | P | Minors | N | 6-6 |
220 |
R-R |
1996-09-07 |
22.161 | Bani,Dom Rep |
 | A | 2015-2018 | - | | 2018-09-30 | Activated from disabled list | 2017-06-22 |
| Bryce Conley | P | Minors | N | 6-3 |
185 |
R-R |
1994-08-22 |
24.177 | Raleigh,North Carolina |
| A | 2014-2018 | - | 2017-22- 651-OAK | 2018-09-30 | Activated from disabled list | 2017-06-29 |
| Ty Damron | P | Minors | N | 6-2 |
190 |
L-L |
1994-07-28 |
24.202 | Denton,Texas |
| A+ | 2014-2018 | - | 2016-15- 442-OAK | 2018-08-15 | Assigned to Beloit (A) | 2018-06-22 |
| Michael Danielak | P | Minors | N | 6-4 |
190 |
R-R |
1994-03-16 |
24.336 | Mount Prospect,Illinois |
| A | 2013-2018 | - | 2017-19- 561-OAK | 2018-09-30 | Activated from disabled list | 2017-06-25 |
| Brady Feigl | P | Minors | N | 6-5 |
215 |
R-R |
1995-11-27 |
23.080 | Chesterfield,Missouri |
| A | 2016-2018 | - | 2018- 5- 143-OAK | 2018-09-30 | Activated from disabled list | 2018-06-17 |
| Nick Highberger | p | Minors | N | 5-11 |
175 |
R-R |
1993-11-04 |
25.103 | Rye,Colorado |
| A+ | 2013-2018 | - | 2016-30- 892-OAK | 2017-10-04 | Activated from disabled list | 2016-08-31 |
| Jhenderson Hurtado | P | Minors | N | 6-1 |
180 |
L-L |
1996-03-28 |
22.324 | Valencia,Venezuela |
 | A | 2014-2018 | - | | 2018-09-01 | Activated from disabled list | 2018-06-13 |
| Mitchell Jordan | p | Minors | N | 6-2 |
190 |
R-R |
1995-04-10 |
23.311 | Orlando,Florida |
| A+ | 2014-2018 | - | 2016-10- 292-OAK | 2017-07-07 | Activated from disabled list | 2017-04-10 |
| Slater Lee | P | Minors | N | 6-0 |
200 |
R-R |
1995-03-05 |
23.347 | Carlsbad,California |
| A | 2014-2018 | - | 2017-24- 711-OAK | 2018-08-22 | Assigned to Beloit (A) | 2018-06-13 |
| Seth Martinez | p | Minors | N | 6-0 |
184 |
R-R |
1994-05-29 |
24.262 | Peoria,Arizona |
| A | 2014-2018 | - | 2016-17- 502-OAK | 2017-06-26 | Assigned to Beloit (A) | 2017-06-22 |
| Michael Murray | p | Minors | N | 6-2 |
210 |
R-R |
1993-09-26 |
25.142 | West Palm Beach,Florida |
| A+ | 2013-2017 | - | 2015-32- 968-OAK | 2017-10-04 | Activated from disabled list | 2016-07-21 |
| Jared Poche' | P | Minors | N | 6-1 |
204 |
R-L |
1994-11-21 |
24.086 | New Orleans,Louisiana |
| A | 2014-2018 | - | 2017- 9- 261-OAK | 2018-04-02 | Assigned to Beloit (A) | 2017-10-04 |
| Jean Ruiz | P | Minors | N | 6-1 |
165 |
R-R |
1996-09-06 |
22.162 | Cartagena,Colombia |
 | A | 2014-2018 | - | | 2018-04-02 | Assigned to Beloit (A) | 2017-06-23 |
| Gus Varland | P | Minors | N | 6-1 |
205 |
L-R |
1996-11-06 |
22.101 | Maplewood,Minnesota |
| A | 2018-2018 | - | 2018-14- 413-OAK | 2018-06-25 | Assigned to Vermont (A-) | 2018-08-04 |
| Brandon Withers | P | Minors | N | 6-1 |
205 |
R-R |
1994-07-04 |
24.226 | Manassas,Virginia |
| A | 2014-2018 | - | 2017-31- 921-OAK | 2018-08-20 | Assigned to Beloit (A) | 2018-08-12 |
| Jesus Zambrano | P | Minors | N | 5-11 |
170 |
R-R |
1996-08-23 |
22.176 | Valencia,Venezuela |
| AAA | 2013-2018 | - | 2012- UDFA-OAK | 2017-05-03 | Assigned to Beloit (A) | 2017-04-27 |
| Jordan Devencenzi | C | Minors | N | 6-0 |
210 |
R-R |
1993-06-26 |
25.234 | Tracy,California |
| AAA | 2013-2018 | - | 2015-26- 788-OAK | 2018-04-02 | Assigned to Beloit (A) | 2017-06-22 |
| Robert Mullen | C | Minors | N | 6-0 |
170 |
R-R |
1996-05-23 |
22.268 | Panama City,Panama |
 | A | 2013-2018 | - | 2012- UDFA-OAK | 2018-08-21 | Assigned to Beloit (A) | 2018-06-13 |
| Skyler Weber | C | Minors | N | 5-10 |
165 |
L-R |
1995-06-06 |
23.254 | Gainesville,Georgia |
| A | 2014-2018 | - | 2016-18- 532-OAK | 2018-09-30 | Activated from disabled list | 2016-06-20 |
| Nick Allen | SS | Minors | N | 5-9 |
155 |
B-R |
1998-10-08 |
20.130 | San Diego,California |
| A | 2017-2018 | - | 2017- 3- 81-OAK | 2018-04-02 | Assigned to Beloit (A) | 2017-07-01 |
| Logan Farrar | IF-OF | Minors | N | 5-11 |
200 |
L-R |
1995-04-16 |
23.305 | Woodbridge,Virginia |
| A | 2014-2018 | - | 2017-36-1071-OAK | 2018-04-02 | Assigned to Beloit (A) | 2017-07-11 |
| Ryan Gridley | IF | Minors | N | 5-9 |
180 |
R-R |
1995-05-04 |
23.287 | Pittsburgh,Pennsylvania |
| A | 2015-2018 | - | 2017-11- 321-OAK | 2018-06-10 | Assigned to Beloit (A) | 2017-06-25 |
| Hunter Hargrove | IF-OF | Minors | N | 5-11 |
200 |
R-R |
1994-09-09 |
24.159 | Mansfield,Texas |
| A | 2014-2018 | - | 2017-25- 741-OAK | 2018-04-15 | Assigned to Beloit (A) | 2017-08-01 |
| Jesus Lage | SS | Minors | N | 6-1 |
155 |
B-R |
1997-12-01 |
21.076 | Valencia,Venezuela |
| A+ | 2015-2018 | - | | 2018-08-25 | Activated from disabled list | 2018-06-25 |
| Jesus Lopez | SS | Minors | N | 5-11 |
170 |
B-R |
1996-10-05 |
22.133 | Chinandega,Nicaragua |
 | A | 2014-2018 | - | 2013- UDFA-OAK | 2018-09-30 | Activated from disabled list | 2017-06-22 |
| Mickey McDonald | IF | Minors | N | 6-4 |
180 |
B-R |
1995-06-02 |
23.258 | San Mateo,California |
| A | 2014-2018 | - | 2017-18- 531-OAK | 2018-08-08 | Assigned to Beloit (A) | 2018-08-05 |
| Miguel Mercedes | 3B | Minors | N | 6-4 |
200 |
R-R |
1995-09-12 |
23.156 | Boca Chica,Dom Rep |
| A | 2013-2018 | - | 2013- UDFA-OAK | 2018-07-30 | Activated from disabled list | 2016-06-19 |
| Lazaro Armenteros | OF | Minors | N | 6-0 |
182 |
R-R |
1999-05-22 |
19.269 | Havana,Cuba |
 | A | 2017-2018 | - | 2016- UDFA-OAK | 2018-07-02 | Activated from disabled list | 2017-06-25 |
| Austin Beck | OF | Minors | N | 5-11 |
175 |
R-R |
1998-11-21 |
20.086 | Lexington,North Carolina |
| A | 2017-2018 | - | 2017- 1- 6-OAK | 2018-04-02 | Assigned to Beloit (A) | 2017-06-25 |
| Anthony Churlin | CF | Minors | N | 6-1 |
190 |
R-R |
1997-05-27 |
21.264 | Seattle,Washington |
| A | 2016-2018 | - | 2016-16- 472-OAK | 2018-04-02 | Assigned to Beloit (A) | 2017-06-22 |
| Mike Martin | of | Minors | N | 6-0 |
160 |
R-R |
1992-09-29 |
26.139 | Buffalo Grove,Illinois |
| A | 2012-2017 | - | 2015-33- 998-OAK | 2017-06-28 | Assigned to Beloit (A) | 2017-06-22 |
| Jack Meggs | OF | Minors | N | 6-0 |
163 |
L-L |
1995-04-18 |
23.303 | Bellevue,Washington |
| A | 2014-2018 | - | 2017-10- 291-OAK | 2018-04-02 | Assigned to Beloit (A) | 2017-10-04 |
