| Name | NBC Team | Last MLB Team | Last MLB Year |
|---|---|---|---|
| Austen Williams | Santa Barbara Foresters | Washington Nationals | 2019 |
| Austin Barnes | Anchorage Bucs | Los Angeles Dodgers | |
| B.J. Rosenberg | Matsu Miners | Philadelphia Phillies | 2014 |
| B.J. Ryan | Hays Larks | Toronto Blue Jays | 2009 |
| Barry Bonds | Hutchinson Broncos | San Francisco Giants | 2007 |
| Barry Bonnell | Eureka, CA | Seattle Mariners | 1986 |
| Barry Lyons | Hutchinson, KS | Chicago White Sox | 1995 |
| Ben McDonald | Anchorage Bucs | Milwaukee Brewers | 1997 |
| Benny McCoy | St. Joseph, MI | Philadelphia Athletics | 1941 |
| Bernie Allen | Indianapolis, IA | Montreal Expos | 1973 |
| Bill Bordley | Anchorage Bucs | San Francisco Giants | 1980 |
| Bill Clemensen | Tucson, AZ | Pittsburgh Pirates | 1946 |
| Bill Davis | Grand Rapids, MI | San Diego Padres | 1969 |
| Bill Gilbreth | Lubbock, TX | California Angels | 1974 |
| Bill Landrum | Grand Rapids, MI | Cincinnati Reds | 1993 |
| Bill Lee | Fairbanks Goldpanners | Montreal Expos | 1982 |
| Bill Long | Kenai Peninsula Oilers | Montreal Expos | 1991 |
| Bill Lyons | Grand Rapids, MI | St. Louis Cardinals | 1984 |
| Bill Mueller | Wichita, KS | Los Angeles Dodgers | 2006 |
| Bill Sudakis | Joliet, IL | Cleveland Indians | 1975 |
| Billy Bates | Grand Rapids, MI | Cincinnati Reds | 1990 |
| Billy Beane | Santa Maria Indians | Oakland Athletics | 1989 |
| Billy Martin | Goodland, KS | Minnesota Twins | 1961 |
| Blake Trahan | Clarinda A’s | Cincinnati Reds | 2018 |
| Blake Wood | Anchorage Bucs | Los Angeles Angels | 2018 |
| Blas Minor | Nevada, MO | Houston Astros | 1997 |
| Bob Boone | Fairbanks Goldpanners | Kansas City Royals | 1990 |
| Bob Brower | Matsu Miners | New York Yankees | 1989 |
| Bob Buhl | Ft. Campbell, KY | Philadelphia Phillies | 1967 |
| Bob Chakales | Camp Lee, VA | Boston Red Sox | 1957 |
| Bob Giggie | Sinton, TX | Kansas City Athletics | 1962 |
| Bob Horner | Boulder Collegians | St. Louis Cardinals | 1988 |
| Bob Kearney | Liberal Bee Jays | Seattle Mariners | 1987 |
| Bob Kelly | St. Joseph, MI | Cleveland Indians | 1958 |
| Bob Meacham | Boulder Collegians | New York Yankees | 1988 |
| Bob Owchinko | Boulder Collegians | Montreal Expos | 1986 |
| Bob Pate | Anchorage Bucs | Montreal Expos | 1981 |
| Bob Purkey | Ft. Myer, VA | Pittsburgh Pirates | 1966 |
| Bob Reece | Boulder Collegians | Montreal Expos | 1978 |
| Bob Sebra | Beatrice Bruins | Milwaukee Brewers | 1990 |