| Clue | Source | Date |
|---|---|---|
| People who might make money from tips? | ||
| Pool parties | Wall Street Journal | 27 Sep 2018 |
| Racetrack regulars | Newsday | 19 Aug 2018 |
| Those who may accept tips | New York Times | 19 Jan 2018 |
| Those who may accept tips | ||
| Pool parties | ||
| Some trackgoers [18] | New York Times | 20 Sep 2017 |
| Pool habitués | LA Times Daily | 18 Mar 2017 |
| Pool habitués | The Washington Post | 18 Mar 2017 |
| Pool habitués | ||
| Some trackgoers [18] | ||
| Racetrack regulars | ||
| Everyone in the pool | ||
| Ones placing trifectas | ||
| Everyone in the pool | ||
| Racetrack habitués | ||
| Tote board readers | ||
| They lay it on the line | ||
| Offtrack wagerers | ||
| Race track supporters | ||
| Reno raisers | ||
| O.T.B. users | ||
| Gamblers. | ||
| People in a pit |