| Clue | Source | Date |
|---|---|---|
| Pitcher's tactic | Eugene Sheffer | 07 Feb 2024 |
| Speedy pitch | USA Today | 29 Jul 2021 |
| Pitcher's tactic | Eugene Sheffer | 04 Mar 2019 |
| Smoke, from a pitcher | The Washington Post | 17 Feb 2017 |
| Delivery at pitcher's maximum speed | The Times Concise | 10 May 2016 |
| Lightning pitch | ||
| Heater in the park | ||
| Heater | ||
| Heat from the mound | ||
| Sizzling pitch | ||
| Knuckler alternative | ||
| Randy Johnson's specialty | ||
| Nolan Ryan specialty | ||
| Blistering pitch | ||
| Pitcher's specialty. | ||
| Carl Erskine's stock in trade. |