| Slam | Answer | % Correct |
|---|---|---|
| US Open 2010 | Novak Djokovic | 99%
|
| French Open 2012 | Novak Djokovic | 99%
|
| US Open 2013 | Novak Djokovic | 99%
|
| French Open 2014 | Novak Djokovic | 99%
|
| French Open 2020 | Novak Djokovic | 99%
|
| French Open 2006 | Roger Federer | 99%
|
| French Open 2007 | Roger Federer | 99%
|
| French Open 2008 | Roger Federer | 99%
|
| Wimbledon 2008 | Roger Federer | 99%
|
| Australian Open 2009 | Roger Federer | 99%
|
| French Open 2011 | Roger Federer | 99%
|
| US Open 2019 | Daniil Medvedev | 93%
|
| Australian Open 2022 | Daniil Medvedev | 93%
|
| French Open 2017 | Stan Wawrinka | 86%
|
| French Open 2018 | Dominic Thiem | 85%
|
| French Open 2019 | Dominic Thiem | 85%
|
| French Open 2022 | Casper Ruud | 83%
|
| French Open 2013 | David Ferrer | 70%
|
| French Open 2010 | Robin Söderling | 64%
|
| Wimbledon 2010 | Tomáš Berdych | 53%
|
| French Open 2005 | Mariano Puerta | 50%
|
| US Open 2017 | Kevin Anderson | 49%
|