| NEWCOMBE | John ?, winner of the 1973 US Open singles tennis championship |
| ISNER | John ?, winner of the Heineken Open singles tennis championship in 2010 and 2014 (5) |
| BILLIEJEANKING | Winner of the 1973 "Battle of the Sexes" tennis match |
| MCENROE | John ?, winner of the 1981 Wimbledon singles tennis championship (7) |
| PART | John ?, winner of the 2003 PDC World Darts Championship (4) |
| NGUGI | John ..., winner of the men's 5000 metres at the 1988 Summer Olympics (5) |
| VIRGO | John ..... , winner of the 1979 UK Championship in snooker (5) |
| THESTING | Winner of the 1973 Oscar for Best Picture. (3,5) |
| MUTAI | John ?, winner of the Belfast City Marathon from 2007-09 (5) |
| STEINBECK | John ?, winner of the 1962 Nobel Prize in Literature (9) |
| MILLER | Johnny ...... , 1973 US Open golf champion (6) |
| LORENZ | Konrad ?, Austrian psychologist, zoologist and ethologist; joint-winner of the 1973 Nobel Prize in Physiology or Medicine |
| OKKER | Tom, winner with John Newcombe of the 1973 French Open men's doubles tennis title (5) |
| ECLIPSE | Final track of the 1973 Pink Floyd album The Dark Side of the Moon |
| ILIE | First name of the 1973 French Open winner |
| ASTRODOME | Site of the 1973 Riggs/King "Battle of the Sexes" |
| JACOBBRONOWSKI | Presenter and writer of the 1973 BBC series The Ascent of Man |
| OJAY | Any of the singers of the 1973 hit "Love Train" |
| ROE | __ v. Wade, landmark 1973 US Supreme Court decision on abortion rights (3) |
| BILLIEHOLIDAY | Jazz singer who was the subject of the 1973 biopic Lady Sings the Blues (6,7) |
