| 100% | MARATHONER | 10 | Person who's in it for the long run? |
| 87% | MILER | 5 | One who's in it for the long run |
| 72% | LIFER | 5 | One who's in it for the long haul |
| 69% | MILER | 5 | One in it for the long run? |
| 59% | HAUL | 4 | In it for the long ___ |
| 59% | HAUL | 4 | In it for the long __ |
| 58% | HAUL | 4 | In it for the long ___ (totally committed) |
| 57% | HAUL | 4 | In it for the long ___ (not about to quit) |
| 57% | SEMIS | 5 | Ones in it for the long haul |
| 57% | SEMIS | 5 | Ones in it for the long haul? |
| 57% | LIFER | 5 | One in it for the long haul |
| 56% | SEN | 3 | One in it for the long term?: Abbr. |
| 56% | SEMIS | 5 | They're in it for the long haul |
| 55% | HAUL | 4 | "We're in it for the long ___" (intend to continue) |
| 55% | HAUL | 4 | "I'm in it for the long ___" (determined to finish) |
| 53% | BOXCAR | 6 | It's in for the long haul |
| 50% | JILL | 4 | The Green Party's Stein who ran for president in 2012 and 2016 |
| 50% | LIMODRIVERS | 11 | People who might work in long stretches, for short |
| 50% | VETS | 4 | People who have served in the military, for short |
| 49% | SUB | 3 | Person who fills in for the regular teacher, for short |
| 49% | LEFTHANDER | 10 | Person whom the other long answers are specially made for |
| 49% | USER | 4 | One who's in it for himself |
| 49% | SWIMMER | 7 | Person who moves in the water for fun or for sport |
| 49% | EDS | 3 | People who'd correct the typoe in this clue, for short |
| 48% | NOMINEE | 7 | Person in the running for an Oscar |
| 47% | CENSUSTAKER | 11 | Person who's down for the count? |
| 47% | ROWLING | 7 | Best-selling author who was a runner-up for Time's 2007 Person of the Year |
| 47% | POL | 3 | Who's in the running? |
| 47% | LOB | 3 | Tennis shot that buys some time for the person who hit it |
| 47% | POL | 3 | Person who's running for reelection, for short |