| Minnesota Blizzard 2016 | 15 | Willem Aldrich | 2016 | East | Duluth | MN | USA | SS |
| Phenom Soldiers (NorCal) | 34 | Joe Ammirato | 2018 | Bellarmine College Prep | San Jose | CA | USA | RHP |
| West Coast Braves | 10 | Landon Anderson | 2017 | Mayfair | Lakewood | CA | USA | LHP |
| CBA 18U | 23 | Rocco Arguto | 2016 | Pueblo West | Pueblo West | CO | USA | RHP |
| ASBA 2017 | 5 | David Avitia Duarte | 2017 | Alhambra | Phoenix | AZ | USA | C |
| Pacific Northwest Regional Baseball 2016s | 2 | Donovan Baldocchi | 2016 | Westview | Beaverton | OR | USA | RHP |
| eXposure West | 15 | Zachary Barnhart | 2016 | Rancho | North Las Vegas | NV | USA | C |
| Prospects National Team - Titan Bats | 22 | Brandt Belk | 2016 | Westside | Houston | TX | USA | OF |
| Wilson Sandlot Elite | 25 | Sam Berry | 2017 | Red Mountain | Mesa | AZ | USA | C |
| IP Academy Prospects | 9 | Tristan Boire | 2016 | Martin Collegiate Baseball Academy | Regina | SK | CAN | RHP |
| DBacks Elite Scout Team | 15 | Jacob Bradley | 2016 | Nitro | South Charleston | WV | USA | RHP |
| CBA 18u | 8 | Ben Brady | 2018 | Discovery Canyon | Colorado Springs | CO | USA | OF |
| Minnesota Classic Baseball | 16 | Dylan Brend | 2016 | Eastview | Apple Valley | MN | USA | RHP |
| North East Baseball | 19 | Will Brennan | 2016 | Blue Valley | Stilwell | KS | USA | OF |
| Baseball Northwest | 28 | Jon Burghardt | 2016 | Gig Harbor | Gig Harbor | WA | USA | C |
| West Coast Braves | 31 | Travis Burleson | 2017 | Fountain Valley | Long Beach | CA | USA | RHP |
| Arizona Future Stars | 24 | Juan Cabrera | 2016 | North Canyon | Phoenix | AZ | USA | OF |
| Arizona Future Stars | 12 | Roberto Cabrera | 2017 | North Canyon | Mesa | AZ | USA | RHP |
| Minnesota Classic Baseball | 17 | Kyle Calvert | 2016 | Eastview | Burnsville | MN | USA | OF |
| DBacks Elite Scout Team | 18 | Robby Campillo | 2016 | Salpointe Catholic | Tucson | AZ | USA | C |
| Mountain Lion Baseball | 20 | Cameron Cannon | 2016 | Mountain Ridge | Chandler | AZ | USA | IF |
| Aggies Baseball | 18 | Juan Cardenas | 2016 | San Luis | San Luis | AZ | USA | RHP |
| Aggies Baseball | 17 | Francisco Carmona | 2016 | San Luis | San Luis | AZ | USA | RHP |
| MD AZ Blue Jays | 25 | Efrain Cervantes | 2018 | Salpointe Catholic | Tucson | AZ | USA | SS |
| West Hills Vipers 18U | 9 | Jerrit Chenier | 2017 | South Kitsap | Tahuya | WA | USA | RHP |
| Wilson Sandlot Elite | 8 | Marcus Christy | 2017 | Red Mountain | Mesa | AZ | USA | RHP |
| DBacks Elite Scout Team | 22 | Hunter Connor | 2017 | Father Lopez | Holly Hill | FL | USA | RHP |
| eXposure West | 8 | Daniel Cope | 2016 | Mt. Carmel | San Diego | CA | USA | C |
| 808 Baseball Academy Red | 14 | Richard Costa | 2016 | Kamehameha Schools Kapalama Ca | Waipahu | HI | USA | 3B |
| San Diego Show | 13 | Brock Daugherty | 2016 | Valley Center | Valley Center | CA | USA | RHP |
| 808 Baseball Academy Red | 16 | Joel Deblin | 2017 | Kapaa High School | Kilauea | HI | USA | RHP |
| ASBA 2017 | 18 | Connor Denning | 2017 | Arcadia | Phoenix | AZ | USA | C |
| North East Baseball | 29 | Frank Dickson | 2016 | Desert Mountain | Scottsdale | AZ | USA | LHP |
| Illinois Indians | 37 | Ben Drenth | 2016 | Cactus Shadows | Cave Creek | AZ | USA | 3B |
| West Coast Braves | 34 | Wilem Drozdowski | 2017 | Sonora | Whittier | CA | USA | OF |
| West Coast Braves | 24 | JJ Duarte | 2016 | San Pedro | San Pedro | CA | USA | C |
| Minnesota Blizzard 2016 | 27 | Ryan Duffy | 2017 | South St. Paul Secondary | South St. Paul | MN | USA | LHP |
| Pacific Northwest Regional Baseball 2016s | 19 | Brendan Ecklebarger | 2016 | Redmond | Woodinville | WA | USA | LHP |
| Team Rawlings PBF | 55 | Hunter Edwards | 2016 | Cy-Fair | Houston | TX | USA | RHP |
| Baseball Northwest | 19 | Brandon Eisert | 2016 | Aloha | Beaverton | OR | USA | LHP |
| Arizona Future Stars | 55 | Elias Escalante | 2017 | Gilbert | Gilbert | AZ | USA | 3B |
| Illinois Indians | 74 | Landon Ewing | 2016 | Windsor | Windsor | CO | USA | 1B |
| North East Baseball | 5 | Christian Fedko | 2017 | Vincentian Acad/Duquesne Univ | Gibsonia | PA | USA | 3B |
| Aggies Baseball | 27 | Aldo Fernandez | 2016 | Alhambra | Phoenix | AZ | USA | RHP |
| Twin Cities Baseball Academy | 7 | Steven Fitzsimmons | 2016 | Robbinsdale Cooper | Golden Valley | MN | USA | OF |
| DBacks Elite Scout Team | 14 | Quinn Flanagan | 2017 | Corona Del Sol | Chandler | AZ | USA | RHP |
| Minnesota Blizzard 2016 | 19 | Tyler Fredlund | 2016 | Mounds View | Shoreview | MN | USA | 2B |
| 808 Baseball Academy Red | 0 | Hunter Fujitani | 2017 | Kamehameha Schools Kapalama Ca | Kaneohe | HI | USA | 3B |
| Baseball Northwest | 4 | Alix Garcia | 2016 | Othello | Othello | WA | USA | 3B |
| North East Baseball | 22 | Aaron George | 2016 | Ouachita Christian | Calhoun | LA | USA | RHP |
| eXposure West | 17 | Aaron Gerdes | 2017 | Millard North | Omaha | NE | USA | SS |
| IPB Zingerbats | 19 | Isiaiah Gonzales | 2017 | Santa Fe | Los Angeles | CA | USA | 3B |
| Pacific Northwest Regional Baseball 2016s | 10 | Jack Gordon | 2016 | Jesuit | Lake Oswego | OR | USA | RHP |
| West Coast Braves | 22 | Austin Green | 2016 | El Toro | Lake Forest | CA | USA | RHP |
| North East Baseball | 23 | Kyle Griffen | 2016 | Sulphur | Sulphur | LA | USA | LHP |
| ASBA 2017 | 36 | Zachary Griffin | 2017 | Sandra Day O`Connor | Peoria | AZ | USA | RHP |
| DBacks Elite Scout Team | 11 | Silas Grinstead | 2016 | Father Lopez | Palm Coast | FL | USA | C |
| Team Mizuno Athletics | 77 | Dane Grounds | 2016 | Ponderosa | Parker | CO | USA | SS |
| MD AZ Blue Jays | 34 | Cody Haley | 2017 | Horizon | Scottsdale | AZ | USA | LHP |
| West Hills Vipers 18U | 10 | Eric Halvorson | 2016 | Central Kitsap | Silverdale | WA | USA | RHP |
| Padres Scout Team | | Branden Hance | 2016 | Salpointe Catholic | Tucson | AZ | USA | RHP |
| Minnesota Blizzard 2016 | 20 | Aaron Hanson | 2016 | Monticello | Monticello | MN | USA | C |
| DBacks Elite Scout Team | 12 | Michael Harkcom | 2016 | The Masters Academy | Debary | FL | USA | 3B |
| Padres Scout Team | | Trevor Hauver | 2017 | Perry | Chandler | AZ | USA | OF |
| eXposure West | 19 | Ethan Heinrich | 2016 | Heritage | Brentwood | CA | USA | RHP |
| Pacific Northwest Regional Baseball 2016s | 11 | Jacob Hirsh | 2016 | O'Dea | Burien | WA | USA | OF |
| Minnesota Classic Baseball | 10 | Sebastian Holte-Mancera | 2016 | Woodbury | Woodbury | MN | USA | OF |
| DBacks Elite Scout Team | 26 | Sam Huff | 2016 | Arcadia | Phoenix | AZ | USA | C |
| eXposure West | 11 | Brayson Hurdsman | 2016 | Desert Hills | St. George | UT | USA | LHP |
| Baseball Northwest | 3 | Jonathan Imperial | 2016 | Davis | Wapato | WA | USA | OF |
| Pacific Northwest Regional Baseball 2016s | 13 | Corey Jackson | 2016 | Yale Secondary | Abbotsford | BC | CAN | RHP |
| Crab University | 6 | Jahlin Jean-Baptiste | 2016 | Dematha Catholic | Hanover | MD | USA | RHP |
| Minnesota Blizzard 2016 | 28 | Michael Jensen | 2017 | Holy Family Cath | Eden Prairie | MN | USA | RHP |
| Baseball Northwest | 42 | Connor Johnson | 2016 | Lake Washington | Kirkland | WA | USA | RHP |
| Aggies Baseball | 36 | Tervont Johnson | 2016 | Mays High School | Atlanta | GA | USA | SS |
| Pacific Northwest Regional Baseball 2016s | 23 | Troy Johnston | 2016 | Gov John Rogers | Puyallup | WA | USA | OF |
| eXposure West | 18 | Kragen Kechely | 2016 | Vista Ridge | Austin | TX | USA | RHP |
| AZ T-Rex Baseball Club | 5 | Levi Kelly | 2018 | IMG Academy | Cape Coral | FL | USA | RHP |
| Twin Cities Baseball Academy | 17 | Tom Kolar | 2016 | St Thomas Academy | Mendota Heights | MN | USA | OF |
| San Diego Show | 4 | Connor Konishi | 2017 | Helix | San Diego | CA | USA | LHP |
| Team Rawlings PBF | 8 | Sean Koon | 2017 | Cypress Woods | Cypress | TX | USA | OF |
| Wilson Sandlot Elite | 27 | Nicholas Labella | 2017 | Desert Ridge | Mesa | AZ | USA | OF |
| Baseball Northwest | 1 | Matt Land | 2017 | Sheldon | Eugene | OR | USA | 2B |
| eXposure West | 9 | Evan Larsen | 2016 | Corona Del Mar | Costa Mesa | CA | USA | RHP |
| Pacific Northwest Regional Baseball 2016s | 9 | Sam Leach | 2016 | Nathan Hale | Seattle | WA | USA | OF |
| Twin Cities Baseball Academy | 47 | Fox Leum | 2016 | Minnetonka | Excelsior | MN | USA | 1B |
| DBacks Elite Scout Team | 5 | Greg Lewandoski | 2017 | Spruce Creek | Deland | FL | USA | SS |
| AZ T-Rex Baseball Club | 18 | Ben Lewis | 2016 | Horizon | Scottsdale | AZ | USA | OF |
| Mountain Lion Baseball | 32 | Matthew Liberatore | 2018 | Mountain Ridge | Peoria | AZ | USA | LHP |
| North East Baseball | 8 | Grant Little | 2016 | Midland Christian | Midland | TX | USA | SS |
| Prospects National Team - Titan Bats | 17 | Nick Loftin | 2017 | Ray | Corpus Christi | TX | USA | SS |
| Prospects National Team - Titan Bats | 9 | Christian Long | 2016 | Westside | Houston | TX | USA | OF |
| IPB Zingerbats | 17 | Kevin Lopez | 2016 | Bishop Amat | La Puente | CA | USA | RHP |
| IP Academy Prospects | 29 | Jayden Lorenz | 2017 | Martin Collegiate | Regina | SK | CAN | RHP |
| Mountain Lion Baseball | 16 | Tommy Lowe | 2017 | Mountain Ridge | Glendale | AZ | USA | RHP |
| San Diego Show | 35 | Connor Lunn | 2016 | Cathedral Catholic | Carlsbad | CA | USA | RHP |
| San Diego Show | 20 | Tyler Malone | 2016 | Woodcreek | Roseville | CA | USA | SS |
| Wilson Sandlot Elite | 6 | Brett Matthews | 2016 | Perry | Queen Creek | AZ | USA | RHP |
| Prospects National Team - Titan Bats | 23 | Quincy McAfee | 2016 | Westside | Houston | TX | USA | SS |
| AZ T-Rex Baseball Club | 21 | Connor McCord | 2016 | Corona Del Sol | Gilbert | AZ | USA | LHP |
| Pacific Northwest Regional Baseball 2016s | 17 | Kenneth McCormick | 2017 | Sammamish | Seattle | WA | USA | C |
| Pacific Northwest Regional Baseball 2016s | 5 | Morgan McCullough | 2016 | West Seattle | Seattle | WA | USA | SS |
| Team Rawlings PBF | 3 | Kyle McShaffry | 2017 | Cypress Woods | Cypress | TX | USA | 3B |
| Prospects National Team - Titan Bats | 44 | Drew Medford | 2016 | Paschal | Fort Worth | TX | USA | RHP |
| San Diego Show | 28 | Sam Miller | 2016 | Cathedral Catholic | Carlsbad | CA | USA | RHP |
| Aggies Baseball | 8 | Ramon Miranda | 2017 | San Luis | San Luis | AZ | USA | SS |
| Minnesota Blizzard 2016 | 23 | Trevor Moses | 2016 | Mahtomedi | Oakdale | MN | USA | 2B |
| Twin Cities Baseball Academy | 9 | Boomer Noteboom | 2017 | Gilbert | Gilbert | AZ | USA | RHP |
| Phenom NNV/North Texas Longhorns | 23 | Jake Oblas | 2016 | Gunter | Gunter | TX | USA | 1B |
| Phenom Soldiers (NorCal) | 37 | Riley O'Day | 2016 | Bishop Shanahan | Coatesville | PA | USA | RHP |
| Minnesota Blizzard 2017 | 7 | Nick Onomiya | 2017 | Cretin Derham Hall | St. Paul | MN | USA | C |
| West Coast Braves | 12 | Dylan Orick | 2017 | Martin Luther King | Riverside | CA | USA | OF |
| San Diego Show | 55 | Tora Otsuka | 2017 | Rancho Bernardo | San Diego | CA | USA | OF |
| CBA 18U | 17 | Trevor Pacheco | 2018 | Pueblo East | Pueblo West | CO | USA | RHP |
| 808 Baseball Academy Red | 0 | Makoa Paresa | 2017 | University Laboratory | Waipahu | HI | USA | RHP |
| North East Baseball | 30 | Jacob Pearson | 2017 | West Monroe | West Monroe | LA | USA | OF |
| 808 Baseball Academy Red | 11 | Nicholas Penzetta | 2016 | Kamehameha Schools Kapalama Ca | Koloa | HI | USA | OF |
| Aggies Baseball | 4 | Sebastian Perez | 2016 | Moon Valley | Watsonville | CA | USA | SS |
| eXposure West | 14 | Tyler Peters | 2016 | Alhambra | Martinez | CA | USA | 3B |
| Minnesota Classic Baseball | 18 | Patrick Pridgen | 2017 | Eastview | Apple Valley | MN | USA | RHP |
| DBacks Elite Scout Team | 16 | Kona Quiggle | 2016 | Greenway | Phoenix | AZ | USA | OF |
| AZ T-Rex Baseball Club | 25 | Kameron Quitno | 2017 | Scottsdale Christian Academy | Phoenix | AZ | USA | 2B |
| IPB Zingerbats | 32 | Adryan Ramirez | 2016 | Bishop Amat | Azusa | CA | USA | SS |
| Twin Cities Baseball Academy | 34 | Jimmy Ramsey | 2017 | Minnetonka | Tonka Bay | MN | USA | RHP |
| DBacks Elite Scout Team | 3 | Brian Rey | 2016 | Deltona | Deltona | FL | USA | OF |
| Phenom Soldiers (NorCal) | 3 | Kyle Riveron | 2017 | Live Oak | Morgan Hill | CA | USA | OF |
| eXposure West | 21 | Austin Roberts | 2016 | River City Christian Academy | West Sacramento | CA | USA | RHP |
| North East Baseball | 12 | Alex Ronnebaum | 2016 | Blue Valley West | Overland Park | KS | USA | 1B |
| Padres Scout Team | 0 | Tommy Sacco | 2017 | Perry | Gilbert | AZ | USA | SS |
| Mountain Lion Baseball | 1 | Chase Sandman | 2016 | Mountain Ridge | Peoria | AZ | USA | LHP |
| Mountain Lion Baseball | 27 | Josh Sandoval | 2017 | Mountain Ridge | Glendale | AZ | USA | 1B |
| Phenom Soldiers (NorCal) | 33 | Hunter Schilperoort | 2017 | Westmont | Campbell | CA | USA | LHP |
| San Diego Show | 7 | Casey Schmitt | 2017 | Eastlake | Chula Vista | CA | USA | 3B |
| Padres Scout Team | 0 | Dustin Schorie | 2017 | Perry | Chandler | AZ | USA | RHP |
| Minnesota Blizzard 2017 | 11 | Jordan Schramel | 2017 | Delano | Delano | MN | USA | RHP |
| ASBA 2017 | 0 | Clay Schwaner | 2017 | Sunrise Mountain | Peoria | AZ | USA | RHP |
| eXposure West | 20 | Logan Sisson | 2016 | Millard North | Omaha | NE | USA | OF |
| San Diego Show | 34 | Bryson Spagnuolo | 2016 | Fallbrook | Fallbrook | CA | USA | RHP |
| Baseball Northwest | 7 | Dalton Stamper | 2016 | Lewiston Senior | Lewiston | ID | USA | LHP |
| Baseball Northwest | 5 | Chad Stevens | 2017 | Gig Harbor | Fox Island | WA | USA | SS |
| AZ T-Rex Baseball Club | 0 | Tristan Stockman | 2016 | Desert Mountain | Fountain Hills | AZ | USA | LHP |
| DBacks Elite Scout Team | 19 | Jonathan Stroman | 2017 | La Cueva | Albuquerque | NM | USA | RHP |
| 808 Baseball Academy Red | 17 | Casey Takei | 2016 | Henry J Kaiser | Honolulu | HI | USA | 1B |
| CBA 18U | 18 | Josh Tellez | 2017 | Pueblo East | Pueblo | CO | USA | RHP |
| Mountain Lion Baseball | 9 | Tristan Thomas | 2016 | Mountain Ridge | Peoria | AZ | USA | 3B |
| Arizona Future Stars | 80 | Race Traynor | 2017 | Homeschool | San Tan Valley | AZ | USA | SS |
| Alex Cintron Baseball | 20 | Pedro Trejo | 2017 | Chandler | Chandler | AZ | USA | 2B |
| IPB Zingerbats | 13 | Corey Treyes | 2016 | Norco | West Covina | CA | USA | SS |
| Mountain Lion Baseball | 6 | Trent Turner | 2017 | Mountain Ridge | Glendale | AZ | USA | OF |
| West Coast Braves | 9 | Cooper Uhl | 2016 | Trabuco Hills | Mission Viejo | CA | USA | C |
| Aggies Baseball | 2 | Sahid Valenzuela | 2016 | St Francis Central Coast Catho | Castroville | CA | USA | IF |
| Alex Cintron Baseball | 14 | Joseph Vazquez | 2017 | Morton Ranch | Katy | TX | USA | 1B |
| Prospects National Team - Titan Bats | 11 | Aaron Walters | 2017 | Center Point | Kerrville | TX | USA | C |
| Pacific Northwest Regional Baseball 2016s | 18 | Cal Waterman | 2016 | Summit | Bend | OR | USA | C |
| San Diego Show | 6 | Chase Wehsener | 2017 | Christian | La Mesa | CA | USA | 1B |
| Wilson Sandlot Elite | 13 | Austin Wendt | 2016 | Mesquite | Gilbert | AZ | USA | LHP |
| DBacks Elite Scout Team | 4 | Tanner West | 2016 | Volcano Vista | Albuquerque | NM | USA | LHP |
| Pacific Northwest Regional Baseball 2016s | 15 | Brady Whalen | 2016 | Union | Vancouver | WA | USA | SS |
| Baseball Northwest | 22 | Jake Wikel | 2016 | Lake Washington | Redmond | WA | USA | OF |
| Arizona Future Stars | 35 | Drew Willis | 2016 | Red Mountain | Mesa | AZ | USA | OF |
| Illinois Indians | 6 | Nick Winter | 2016 | Milwaukee Lutheran | Milwaukee | WI | USA | LHP |
| Team Mizuno Athletics | 2 | Will Worthington | 2019 | Brophy College Preparatory | Phoenix | AZ | USA | SS |
| Pacific Northwest Regional Baseball 2016s | 16 | Kenyon Yovan | 2016 | Westview | Beaverton | OR | USA | RHP |
| Minnesota Blizzard 2016 | 30 | Lawson Zenner | 2016 | Prior Lake | Savage | MN | USA | RHP |