| Clue | Source | Date |
|---|---|---|
| Forbidden pitch | Wall Street Journal | 31 Dec 2022 |
| Outlawed pitch | Universal | 11 Oct 2018 |
| Outlawed pitch | ||
| Illegal pitch, familiarly | ||
| Illegal pitch | ||
| Sneaky pitch | ||
| Sneaky pitch | ||
| Illegal pitch | ||
| Illegal pitch | ||
| Camel, notably | ||
| Bad pitch? | ||
| Outlawed pitch, informally | ||
| Burleigh Grimes pitch | ||
| Outlawed pitch | ||
| Illegal pitch |