| 100% | PGA | 3 | Organizer of one of four Grand Slam events: Abbr. |
| 65% | RBI | 3 | One of four in a grand slam: Abbr. |
| 60% | RBI | 3 | One of four in a grand slam (Abbr.) |
| 56% | RBI | 3 | One of four in a grand slam |
| 55% | RBI | 3 | One of four for a grand slam HR |
| 55% | RBI | 3 | One of four for a grand slam, in brief |
| 55% | RBI | 3 | One of four for a grand slam, for short |
| 54% | THEFRENCHOPEN | 13 | One of four annual Grand Slam tennis tournaments: 3 wds. |
| 51% | RBIS | 4 | A slugger earns four of these for a grand slam home run: Abbr. |
| 50% | RBIS | 4 | A grand slam homer results in four of these: Abbr. |
| 48% | AUSSIEOPEN | 10 | One of the Grand Slams in tennis, informally |
| 47% | SYL | 3 | One of four in mythology: Abbr. |
| 47% | SYL | 3 | One of four in Mississippi: Abbr. |
| 47% | ANG | 3 | One of four for a square: Abbr. |
| 46% | SERENA | 6 | ___ Slam (winning four Grand Slam events in a row) |
| 46% | PGA | 3 | Holder of a Grand Slam event, for short |
| 46% | SYL | 3 | One of four in mythology?: Abbr. |
| 45% | NAOMI | 5 | With 33-Across, four-time Grand Slam champion who was one of the cohosts of the 2021 Met Gala |
| 45% | RBIS | 4 | Four from a grand slam: Abbr. |
| 44% | AGASSI | 6 | Winner of all four grand slam titles |
| 42% | RBIS | 4 | A grand slam earns four: Abbr. |
| 42% | RBIS | 4 | A grand slam homer produces four: Abbr. |
| 42% | RUNS | 4 | A grand slam scores four of them |
| 42% | QUAD | 4 | One of four babies (abbr) |
| 41% | SLAM | 4 | Grand ___ (winning the four major tennis events in one year) |
| 41% | RBIS | 4 | A grand slam home run produces four: Abbr. |
| 41% | TWA | 3 | One of the former "Big Four" airlines in the US: Abbr. |
| 41% | RBIS | 4 | A grand slam nets four of these, for short |
| 40% | GRAF | 4 | Only tennis player to have won each Grand Slam event at least four times |
| 40% | ALTHEA | 6 | Gibson who was the first person of color to win a tennis Grand Slam event |