OPENERA
| Date | Clue |
|---|---|
| 2025-02-05 | Tennis period since 1968 |
| 2024-03-14 | What professional tennis has been in since 1968 |
| 2023-10-08 | Pro tennis period since 1968 |
| 2017-09-24 | Tennis world since 1968 |
| 2014-11-21 | Tennis since 1968 |
| 2014-10-19 | Post-1968 tennis period |
| 2014-02-23 | Professional tennis since 1968 |
| 2013-03-07 | Tennis world since 1968 |
| 2013-02-17 | Post-1968 tennis |
| 2013-01-24 | 1968 to the present, in tennis |
| 2008-03-15 | It began in 1968, for tennis |
| 2004-02-28 | It began in 1968, for tennis |