| 100% | LOUCOSTELLO | 11 | "Who's on First?" funny guy |
| 68% | SECOND | 6 | Who's on First, What's on __ |
| 65% | NOONE | 5 | Who's on first, at the top of the inning |
| 64% | LINEUP | 6 | It reveals who's on first |
| 60% | LOU | 3 | Who asked "Who's on first?" |
| 60% | COSTELLO | 8 | "Who's on first?" asker |
| 60% | TODAY | 5 | "Who's on First?" catcher |
| 60% | COSTELLO | 8 | "Who's on First?" comic |
| 59% | ABBOTT | 6 | "Who's on First?" straight man |
| 59% | WHY | 3 | "Who's on First?" left fielder |
| 59% | ABBOTT | 6 | ''Who's on First?'' straight man |
| 59% | ABBOTT | 6 | “Who’s on First?” straight man |
| 57% | LOU | 3 | He asked Bud "Who's on first?" |
| 56% | TODAY | 5 | Catcher in the "Who's on First?" routine |
| 56% | BUD | 3 | Half of the "Who's on First?" duo |
| 55% | LOU | 3 | Costello in the "Who's on First?" comedy routine |
| 54% | EDIE | 4 | First name of the actress who plays Tommy on CBS's "Tommy" |
| 54% | LOU | 3 | Bud's "Who's on First?" partner |
| 53% | AMAL | 4 | First name of George Clooney's wife, who delivered twins on June 6 |
| 53% | SARA | 4 | Ramirez who voiced Queen Miranda on Disney's "Sofia the First" |
| 52% | DYER | 4 | Guy who puts color on cloth |
| 51% | NYE | 3 | "Science Guy" Bill who's competing on "Dancing with the Stars" |
| 51% | BASE | 4 | First, in "Who's on First?" |
| 51% | JOHNSTOCKTON | 12 | NBA player (1984-2003) who's first on the list of most career assists: 2 wds. |
| 50% | SUSAN | 5 | ___ Boyle, Scottish singer who first appeared as a contestant on "Britain's Got Talent" |
| 49% | SETH | 4 | Macfarlane who cites Rex Harrison as the inspiration for Stewie's voice on "Family Guy" |
| 49% | SARA | 4 | "Grey's Anatomy" actress Ramirez who voices Queen Miranda on Disney's "Sofia the First" |
| 49% | ALEXRODRIGUEZ | 13 | Former Yankee who is first on Major League Baseball's career earnings list: 2 wds. |
| 49% | WHO | 3 | He's on first |
| 49% | WHOSWHO | 7 | "He's on first" |