Ages are from boxrec and "accurate" at the time of writing. For the youngest ages just a professional bout counts as being a "prospect", rankings are all from the IBO. U18's UPDATED (13/10/2011) update for the rest to follow.
14 year old prospects
Wesam Maqrami 1-0 (0)
15 year old prospects
Saleh Salehi 1-0 (1)
Asam Dolbhante 1-0 (0)
Omar Moxamad 1-0 (0)
16 year old prospects
Robert Manzanarez 14-0 (10)
Hyun-Je Shin 5-1 (0)
Leroy Estrada 5-0 (2)
Carlos Perez 4-1 (3)
Jose Manuel Sanchez 3-0 (1)
Nikita Shalkovich 1-0 (1)
Edwin Delgadillo 1-0 (1)
Ahmed Saeed 1-0 (1)
Yosf Moxamad 1-0 (0)
17 year old prospects
Sergio Vargas Gonzalez 7-0 (7)
Ramses Payano 7-0 (4)
Toni Camin 5-0-1 (3)
Rinju Ogura 3-0 (2)
Ivan Ramirez 3-0 (1)
Engin Guel 1-0 (1)
18 year old prospects
Andres Gutierrez 19-0-1 (16)
Oscar Cortes 17-0 (10)
JR Edurot 17-0 (7)
Adrian Young 13-0-1 (13)
Julio Ceja 13-0 (12) #73 IBO Flyweight
Yuri Mendez 12-0 (10)
Bobby Bryant 10-0 (8)
Miguel Flores 9-0 (6)
Konstantin Ponomarev 9-0 (5)
Genesis Servania 9-0 (3)
Dennis Ronert 8-0 (8)
Daniyar Hanyk 8-0 (3)
Mario Guedes Jr 6-0 (6)
Aljhon Osabel 6-0 (1)
Boyce Sultan 5-0 (3)
Oscar Trujillo 5-0 (2)
Waylon Law 5-0 (1)
Cris Paulino 5-0 (1)
Tsuyoshi Tameda 4-0-1 (3)
Stanislav Gurenkov 4-0 (4)
Eddie Gomez 4-0 (3)
Riki Matsui 4-0 (2)
Antonio Capulin 3-0 (3)
Trevor McCumby 3-0 (3)
Cesar Gaytan 3-0 (1)
Nino Valenzuela 3-0 (1)
Roman Radkevich 2-0 (2)
Jose Charles 2-0 (2)
Hairon Socarras 2-0 (2)
Ray Ximenez 2-0 (0)
19 year old prospects
Oliver Flores 21-0-1 (15) #14 IBO Bantamweight #63 IBO Super Featherweight
Tomoki Kameda 19-0 (12)
Oscar Arenas 18-1 (15)
Carlos Buitrago 18-0-0-1 (13) #35 IBO Minimumweight
Marlon Tapales 17-1 (5) #25 IBO Light Flyweight
Gilberto Ramirez Sanchez 17-0 (15) # 77 Middleweight
Jose Felix Jr 15-0-1 (13)
Randy Petalcurin 12-1 (11) #47 IBO Flyweight
Manuel Mariano Martinez 12-0-1 (6)
Jose Benavidez Jr 11-0 (10)
Jerwin Ancajas 10-0-1 (4) #IBO 72 Super Flyweight
Suanoi Sor Tanapinyo 10-0 (9)
Teerachai Kratingdaenggym 10-0 (7)
Fidel Maldonado Jr 10-0 (9)
Aroel Romasasa 10-0 (5)
Frankie Gomez 9-0 (7)
Jerry Nardo 9-0 (5)
Denchailek Krathingdaenggym 8-0 (6) #69 IBO Flyweight (Alias Denchailek Titthiphongsathorn)
Sho Ishida 8-0 (3)
Michael Finney 7-0 (7)
Dennis Contreras 7-0 (6)
Herve Hubeaux 7-0 (4)
Martin Cardona 7-0 (4)
Erik Skoglund 6-0 (3)
Ramsey Luna 6-0 (2)
Dwight Ritchie 6-0 (2)
Paddy McDonagh 6-0 (0)
Eric Kapia Mukadi 6-0 (0)
Mark Heffron 5-0 (4)
Roque Mex 5-0 (3)
George Michael Carman 5-0 (0)
Miguel Berchelt 4-0 (4)
Carlos Suello 4-0 (4)
Joel Diaz 4-0 (3)
Jesse Magdaleno 4-0 (3)
Manuel Avila 4-0 (2)
Viachaslau Stefanouski 3-0 (3)
Javier Mercado 3-0 (3)
Takahiro Shigee 3-0 (3)
Gasan Gasanov 2-0 (2)
Tracy Rollins 1-0 (1)-Top US Amateur (included due to amateur success)