| Aaron Fox League | Forum | Subscription | 09-02-2075 | 16 | 1 | |
| Al Lopez League | Forum | Trial | 09-02-1952 | 16 | 0 | |
| Albert Pujols League | Forum | Subscription | 03-25-2127 | 16 | 0 | |
| Amos Otis League | Forum | Subscription | 08-23-2134 | 16 | 0 | |
| Andres Galarraga League | Forum | Subscription | 06-28-2109 | 16 | 0 | |
| Ashburn Crawford League | Forum | Dynasty | 04-21-2012 | 24 | 0 | |
| Barry Zito League | Forum | Subscription | 09-05-2098 | 16 | 0 | |
| Bill Mazeroski League | Forum | Subscription | 04-28-2121 | 16 | 1 | |
| Bill Watkins League | Forum | Trial | 07-04-1950 | 16 | 2 | Filling (14 of 16), Games paused |
| Billy Hamilton League | Forum | Dynasty | 04-18-2077 | 16 | 2 | |
| Billy Williams League | Forum | Subscription | 06-18-2069 | 16 | 3 | |
| Birdie Tebbetts League | Forum | Trial | 08-16-1951 | 16 | 0 | |
| Bob Ferguson League | Forum | Trial | 07-04-1950 | 16 | 10 | Filling (6 of 16), Games paused |
| Bob Horner League | Forum | Private | 07-05-1972 | 16 | 0 | |
| Bobby Doerr League | Forum | Subscription | 10-03-2018 | 16 | 1 | |
| Branch Rickey League | Forum | Subscription | 09-05-2209 | 16 | 3 | |
| Buddy Bell League | Forum | Trial | 07-04-1950 | 16 | 15 | Filling (1 of 16), Games paused |
| Carl Dunn League | Forum | Dynasty | 04-21-2012 | 24 | 0 | |
| Carlton Fisk League | Forum | Private | 10-13-2275 | 16 | 4 | |
| Cesar Cedeno League | Forum | Dynasty | 04-18-2073 | 16 | 0 | |
| Charlie Finley League | Forum | Trial | 08-05-1950 | 16 | 0 | |
| Chick Stahl League | Forum | Trial | 09-29-1951 | 16 | 0 | |
| Cool Papa Bell League | Forum | Subscription | 09-19-2058 | 16 | 0 | |
| Darrell Johnson League | Forum | Trial | 07-20-1951 | 16 | 0 | |
| Dave Bristol League | Forum | Trial | 07-04-1950 | 16 | 9 | Filling (7 of 16), Games paused |
| Del Crandall League | Forum | Trial | 07-04-1950 | 16 | 5 | Filling (11 of 16), Games paused |
| Dick Howser League | Forum | Trial | 07-13-1951 | 16 | 0 | |
| Dom DiMaggio League | Forum | Dynasty | 04-18-2073 | 16 | 0 | |
| Don Newcombe League | Forum | Subscription | 04-21-2161 | 16 | 1 | |
| Duke Snider League | Forum | Dynasty | 04-18-2078 | 16 | 0 | |
| Earl Averill League | Forum | Dynasty | 04-18-2075 | 16 | 1 | |
| Ed ONeill League | Forum | Subscription | 06-08-2251 | 16 | 0 | |
| Eddie Dyer League | Forum | Trial | 09-12-1951 | 16 | 0 | |
| Ford Hernandez League | Forum | Subscription | 06-25-2210 | 24 | 0 | |
| Frank Robinson League | Forum | Private | 08-21-2183 | 16 | 0 | |
| Fred Lynn League | Forum | Dynasty | 04-18-2074 | 16 | 1 | |
| Fred Mitchell League | Forum | Trial | 07-22-1950 | 16 | 0 | |
| Gaylord Perry League | Forum | Subscription | 10-03-2695 | 16 | 0 | |
| George Huff League | Forum | Trial | 07-04-1950 | 16 | 9 | Filling (7 of 16), Games paused |
| George Van Haltren League | Forum | Dynasty | 04-18-2071 | 16 | 1 | |
| Gibson Feller League | Forum | Subscription | 07-23-2011 | 16 | 0 | |
| Goose Goslin League | Forum | Dynasty | 04-18-2063 | 16 | 0 | |
| Harmon Killebrew League | Forum | Subscription | 05-25-2176 | 16 | 1 | |
| Heinie Wagner League | Forum | Trial | 07-30-1952 | 16 | 0 | |
| Jesse Orosco League | Forum | Subscription | 04-01-2209 | 16 | 0 | |
| Jeter Wood League | Forum | Subscription | 10-13-2027 | 16 | 1 | |
| Jim Bottomley League | Forum | Trial | 08-03-1951 | 16 | 0 | |
| Jim Lefebvre League | Forum | Trial | 09-29-1951 | 16 | 0 | |
| Jimmy Wynn League | Forum | Dynasty | 04-18-2077 | 16 | 5 | |
| Joe Cantillon League | Forum | Trial | 09-09-1952 | 16 | 0 | |
