Arizona Diamondbacks preliminary prospect grade breakdown

Here is the first-run grade breakdown for the Arizona Diamondbacks prospect list. All the names I am looking at are listed below. Currently it looks like

Grade A: Zero
Grade A-: Zero
Grade B+: Zero
Grade B: Three
Grade B-:  Two
Grade C+: 18
Grade C:  21

There is play in the C+/C range but significant changes at the top end are unlikely.

Sergio Alcantara, SS
Jose Almonte, RHP
Anthony Banda, LHP
Luis Alejandro Basabe, 2B
Socrates Brito, OF
Ryan Burr, RHP
Austin Byler, 1B
Henry Castillo, INF
Jasrado Chisholm, SS
Taylor Clarke, RHP
Justin Donatella, RHP
Jon Duplantier, RHP
Tommy Eveld, RHP
Daniel Gibson, LHP
Kevin Ginkel, RHP
Anfernee Grier, OF
Oscar Hernandez, C
Jose Herrera, C
Wei-Chieh Huang, RHP
Ryan January, C
Mark Karaviotis, SS
Brad Keller, RHP
Matt Koch, RHP
Joey Krehbiel, RHP
Mack Lemieux, LHP
Domingo Leyba, INF
Yoan Lopez, RHP
Dawel Lugo, INF
Gabriel Maciel, OF
Tyler Mark, RHP
Sam McWilliams, RHP
Jared Miller, LHP
Peter O’Brien, OF-1B
Cody Reed, LHP
Jack Reinheimer, INF
Victor Reyes, OF
Jimmie Sherfy, RHP
Curtis Taylor, RHP
Josh Taylor, LHP
Ildemaro Vargas, SS
Jordan Watson, LHP
Jamie Westbrook, 2B
Marcus Wilson, OF
Andy Yerzy, C
Alex Young, LHP