MLB.com has been ranking each Major League organization's top prospects since 2011. Here are the preseason rankings for the Cubs from 2011-18:
2011

1. Brett Jackson, OF
   
2. Trey McNutt, RHP
   
3. Chris Carpenter, RHP
   
4. Hayden Simpson, RHP
   
5. Josh Vitters, 3B
   
6. Jay Jackson, RHP
   
7. Rafael Dolls, RHP
   
8. Matt Szczur, OF
   
9. Reggie Goldwin, OF
   
10. Darwin Barney, SS
    2012
    
11. Anthony Rizzo, 1B
    
12. Brett Jackson, OF
    
13. Matt Szczur, OF
    
14. Javier Baez, SS
    
15. Chris Carpenter, RHP
    
16. Dillon Maples
    
17. Trey McNutt
    
18. Rafael Dolis
    
19. Robert Whitenack
    
20. Reggie Golden
    
21. Junior Lake
    
22. Josh Vitters
    
23. Ronald Torreyes
    
24. Ben Wells
    
25. Dan Vogelbach
    
26. Jeimer Candelario
    
27. Gioskar Amaya
    
28. Marco Hernandez
    
29. Dave Sappelt
    
30. Pin-Chieh Chen
    2013
    
31. Javier Baez
    
32. Albert Almora
    
33. Jorge Soler
    
34. Brett Jackson
    
35. Arodys Vizcaino
    
36. Dillon Maples
    
37. Pierce Johnson
    
38. Christian Villanueva
    
39. Junior Lake
    
40. Matt Szczur
    
41. Dan Vogelbach
    
42. Jae-Hoon Ha
    
43. Jeimer Candelario
    
44. Josh Vitters
    
45. Robert Whitenack
    
46. Duane Underwood
    
47. Paul Blackburn
    
48. Gioskar Amaya
    
49. Alberto Cabrera
    
50. Darien Martin
    2014
    
51. Javier Baez
    
52. Kris Bryant
    
53. Albert Almora
    
54. C.J. Edwards
    
55. Jorge Soler
    
56. Arismendy Alcantara
    
57. Pierce Johnson
    
58. Arodys Vizcaino
    
59. Jeimer Candelario
    
60. Dan Vogelbach
    
61. Christian Villanueva
    
62. Eloy Jimenez
    
63. Neil Ramirez
    
64. Mike Olt
    
65. Paul Blackburn
    
66. Kyle Hendricks
    
67. Corey Black
    
68. Jacob Hannemann
    
69. Tyler Skulina
    
70. Gleyber Torres
    2015
    
71. Kris Bryant
    
72. Addison Russell
    
73. Jorge Soler
    
74. C.J. Edwards
    
75. Kyle Schwarber
    
76. Albert Almora
    
77. Gleyber Torres
    
78. Duane Underwood
    
79. Billy McKinney
    
80. Pierce Johnson
    
81. Jen-Ho Tseng
    
82. Eloy Jimenez
    
83. Jake Stinnett
    
84. Carson Sands
    
85. Jeimer Candelario
    
86. Dan Vogelbach
    
87. Justin Steele
    
88. Mark Zagunis
    
89. Victor Caratini
    
90. Corey Black
    
91. Dylan Cease
    
92. Rob Zastryzny
    
93. Jacob Hannemann
    
94. Christian Villanueva
    
95. Daury Torrez
    
96. Eric Jokisch
    
97. Paul Blackburn
    
98. Kevonte Mitchell
    
99. Trevor Clifton
    
100. Bijan Rademacher
     2016
     
101. Gleyber Torres
     
102. Willson Contreras
     
103. Ian Happ
     
104. Duane Underwood
     
105. Albert Almora
     
106. Billy McKinney
     
107. Jeimer Candelario
     
108. Dylan Cease
     
109. Oscar De La Cruz
     
110. Eloy Jimenez
     
111. Pierce Johnson
     
112. Donnie Dewees
     
113. Bryan Hudson
     
114. D.J. Wilson
     
115. Eddy Julio Martinez
     
116. Carl Edwards Jr.
     
117. Justin Steele
     
118. Mark Zagunis
     
119. Ryan Williams
     
120. Dan Vogelbach
     
121. Trevor Clifton
     
122. Jake Stinnett
     
123. Carson Sands
     
124. Jen-Ho Tseng
     
125. Victor Caratini
     
126. Christian Villanueva
     
127. Corey Black
     
128. Jacob Hannemann
     
129. Brad Markey
     
130. Josh Conway
     2017
     
131. Eloy Jimenez
     
132. Ian Happ
     
133. Albert Almora
     
134. Dylan Cease
     
135. Jeimer Candelario
     
136. Oscar De La Cruz
     
137. Mark Zagunis
     
138. Trevor Clifton
     
139. Jose Albertos
     
140. D.J. Wilson
     
141. Eddy Martinez
     
142. Thomas Hatch
     
143. Victor Caratini
     
144. Chesny Young
     
145. Jose Paulino
     
146. Duane Underwood
     
147. Aramis Ademan
     
148. Carlos Sepulveda
     
149. Isaac Paredes
     
150. Jose Rosario
     
151. Felix Pena
     
152. Alec Mills
     
153. Rob Zastryzny
     
154. Pierce Johnson
     
155. Bryan Hudson
     
156. Jacob Hannemann
     
157. Ryan Williams
     
158. Bailey Clark
     
159. P.J. Higgins
     
160. Preston Morrison
     2018
     
161. Adbert Alzolay
     
162. Aramis Ademan
     
163. Oscar De La Cruz
     
164. Jose Albertos
     
165. Alex Lange
     
166. Brendon Little
     
167. Thomas Hatch
     
168. Victor Caratini
     
169. D.J. Wilson
     
170. Nelson Velazquez
     
171. Miguel Amaya
     
172. Jen-Ho Tseng
     
173. Dillon Maples
     
174. Mark Zagunis
     
175. David Bote
     
176. Justin Steele
     
177. Jeremiah Estrada
     
178. Erich Uelmen
     
179. Keegan Thompson
     
180. Erling Moreno
     
181. Michael Rucker
     
182. Alec Mills
     
183. Zack Short
     
184. Javier Assad
     
185. Bryan Hudson
     
186. Wladimir Galindo
     
187. Brailyn Marquez
     
188. Trevor Clifton
     
189. Cory Abbott
     
190. Duane Underwood