TOPSPIN
| Date | Clue |
|---|---|
| 2017-11-29 | Tennis technique |
| 2016-03-13 | Court technique |
| 2012-08-25 | Cause of a curved flight path |
| 2007-04-21 | Tennis technique |
| 2005-08-21 | Arc producer |
| 2002-04-04 | English of a sort |
| 2000-09-24 | Ball bearing? |
| Date | Clue |
|---|---|
| 2017-11-29 | Tennis technique |
| 2016-03-13 | Court technique |
| 2012-08-25 | Cause of a curved flight path |
| 2007-04-21 | Tennis technique |
| 2005-08-21 | Arc producer |
| 2002-04-04 | English of a sort |
| 2000-09-24 | Ball bearing? |