| 100% | ULTRA | 5 | Prefix with marathon for a race over 26.2 miles |
| 82% | ULTRA | 5 | Prefix with marathon for a race longer than 26.2 miles |
| 41% | DAILYMAIL | 9 | Newspaper behind the hoax about a man who thought he had to run for 26 days instead of 26 miles for the London Marathon: 2 wds. |
| 39% | TRI | 3 | Race that may end with a marathon, for short |
| 38% | NEO | 3 | Prefix with "natal," for a newborn |
| 38% | AGORA | 5 | Prefix with phobia for a fear of crowded places |
| 38% | TRI | 3 | Prefix with "angle" for a geometric shape |
| 38% | SCREW | 5 | Prefix with "driver" for a fastening tool |
| 38% | TRI | 3 | Prefix with "angle" for a common shape |
| 38% | DARE | 4 | Prefix with "devil" for a Marvel superhero |
| 38% | UBER | 4 | Prefix with "mensch" for a Nietzsche concept |
| 38% | GEO | 3 | Prefix with "graphy" for a school subject |
| 38% | NEO | 3 | Prefix with "natal" for a hospital unit |
| 38% | MER | 3 | Prefix with "maid" for a mythical creature |
| 38% | EPI | 3 | Prefix with "Pen" for a lifesaving item |
| 38% | UNI | 3 | Prefix with "corn" for a fantastical being |
| 38% | EPI | 3 | Prefix with "Pen" for a lifesaving tool |
| 38% | ODO | 3 | Prefix with "meter" for a dashboard reading |
| 38% | GEO | 3 | Prefix with "metry" for a math subject |
| 38% | EPI | 3 | Prefix with "Pen" for a lifesaving injection |
| 38% | SCARE | 5 | Prefix with "crow" for a field mannequin |
| 37% | AUTO | 4 | Prefix with "biography," for a self-written one |
| 37% | COS | 3 | Prefix with "play" for a Comic Con attendee |
| 37% | TRI | 3 | Prefix with "angle" for a three-sided figure |
| 37% | DECI | 4 | Prefix with "bel" for a sound-measuring unit |
| 37% | MOON | 4 | Prefix with "walk" for a Michael Jackson move |
| 37% | GEO | 3 | Prefix with "graphy" for a high school subject |
| 37% | AUTO | 4 | Prefix with "pilot" for a aircraft-controlling system |
| 37% | OXI | 3 | Prefix with "Clean" for a household cleaning brand |
| 37% | EPI | 3 | Prefix with "pen" for a life-saving device |