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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| League | Level | From-To | Parent League |
|---|---|---|---|
| To The Wall Baseball | MLB | 2007-2051 | |
| TTWB Triple A | AAA | 2010-2051 | To The Wall Baseball |
| TTWB Double A | AA | 2010-2051 | To The Wall Baseball |
| TTWB Single A | A | 2010-2051 | To The Wall Baseball |
| TTWB Rookie League | R | 2010-2051 | To The Wall Baseball |
| Nippon Professional Baseball League | MLB | 2010-2024 | |
| Nippon Baseball Ni-Gun League | AAA | 2010-2024 | |
| TTWB College | COL | 2010-2021 | To The Wall Baseball |
| TTWB JUCO | COL | 2010-2021 | To The Wall Baseball |
| TTWB High School | HS | 2010-2021 | To The Wall Baseball |
| TTWB Winter League | WL | 2014-2029 | To The Wall Baseball |
| TTWB Low A | S A | 2014-2021 | To The Wall Baseball |
| TTWB Short Season A | S A | 2023-2051 | To The Wall Baseball |
