| 100% | HOST | 4 | Ken Jennings, for "Jeopardy!" |
| 100% | HOST | 4 | Ken Jennings, for “Jeopardy!” |
| 79% | GAMESHOWHOST | 12 | Ken Jennings, for one: 3 wds. |
| 60% | HOST | 4 | "Jeopardy!" job for Jennings |
| 58% | WHOIS | 5 | Preface for many a Ken Jennings autograph |
| 55% | MAPHEAD | 7 | Ken Jennings book on geography |
| 54% | TITHE | 5 | Emulate Ken Jennings |
| 53% | BRAINIAC | 8 | Ken Jennings' book on trivia buffs |
| 51% | KEN | 3 | Jeopardy winner, Jennings |
| 51% | KEN | 3 | Jeopardy! contestant Jennings |
| 51% | KEN | 3 | Jennings of Jeopardy! |
| 50% | ANCHOR | 6 | Peter jennings, for one |
| 49% | KENS | 4 | Burns and Jennings, for two |
| 48% | BRAINIAC | 8 | 2006 Ken Jennings book ... or the author himself |
| 47% | SNLSKIT | 7 | "Black Jeopardy!," for one |
| 46% | ORATOR | 6 | William Jennings Bryan, for one |
| 46% | ONTHEBALL | 9 | Compliment for Ken Griffey Jr.? |
| 46% | NAM | 3 | Subject for Ken Burns, briefly |
| 46% | CUCKOO | 6 | Title bird for Ken Kesey |
| 46% | PBS | 3 | Network for Ken Burns series |
| 46% | JAZZ | 4 | Musical subject for Ken Burns |
| 46% | TIMELIMIT | 9 | 30 seconds, for Final Jeopardy |
| 46% | SNL | 3 | "Black Jeopardy!" show, for short |
| 46% | JAMESHOLZHAUER | 14 | Record-setting contestant competing with Ken Jennings and 16-Across on "Jeopardy! The Greatest of All Time" (2 wds.) |
| 46% | BRADRUTTER | 10 | Record-setting contestant competing with Ken Jennings and 34-Across on "Jeopardy! The Greatest of All Time" (2 wds.) |
| 45% | ALTEREGO | 8 | Clark Kent, for one |
| 45% | ADOPTEE | 7 | Clark Kent, for one |
| 45% | SECRETIDENTITY | 14 | Clark Kent, for Superman |
| 45% | DOUBLE | 6 | __ jeopardy, 2nd prosecution for the same offense |
| 44% | TOYBOX | 6 | Home for Barbie and Ken, perhaps |