Head to Head
| WTT Contender Tunis | 2022/08/03 15:30 | Joao Geraldo v Kristian Karlsson | W | 1-3 |
| WTT Singapore Smash | 2022/03/13 06:50 | Kristian Karlsson v Joao Geraldo | W | 3-1 |
| Qatar Open Women | 2018/05/26 12:20 | Joao Geraldo v Kristian Karlsson | W | 2-3 |
| Qatar Open Women | 2018/01/14 14:40 | Kristian Karlsson v Joao Geraldo | W | 3-1 |
| Qatar Open XD | 2017/08/24 16:30 | Joao Geraldo v Kristian Karlsson | W | 0-4 |
Home History
| European Champs | 2024/10/18 12:40 | Kristian Karlsson v Anton Kallberg | L | 1-4 |
| European Champs | 2024/10/17 16:30 | Kristian Karlsson v Joao Monteiro | W | 4-0 |
| WTT China Smash Quals | 2024/09/27 10:35 | Kristian Karlsson v Benedek Olah | L | 1-3 |
| WTT China Smash Quals | 2024/09/26 10:35 | Kristian Karlsson v Harmeet Desai | W | 3-2 |
| Olympics 2024 - Men Team | 2024/08/09 14:50 | Chuqin Wang v Kristian Karlsson | L | 3-2 |
| Olympics 2024 - Men Team | 2024/08/07 19:25 | Shunsuke Togami v Kristian Karlsson | W | 1-3 |
| Olympics 2024 - Men Team | 2024/08/05 09:30 | Kristian Karlsson v Jonathan Groth | W | 3-0 |
| WTT Contender Tunis | 2024/06/27 09:55 | Tomokazu Harimoto v Kristian Karlsson | L | 3-0 |
Away History
| European Champs | 2024/10/18 13:50 | Joao Geraldo v Patrick Franziska | L | 1-4 |
| European Champs | 2024/10/17 18:10 | Joao Geraldo v Tamas Lakatos | W | 4-3 |
| Olympics 2024 - Men Team | 2024/08/05 15:05 | Joao Geraldo v Vitor Ishiy | L | 2-3 |
| Olympics 2024 - Men Team | 2024/08/05 14:05 | Joao Geraldo v Hugo Calderano | L | 0-3 |
| WTT Star Contender Ljubljana | 2024/06/14 17:55 | Daeseong Cho v Joao Geraldo | L | 3-0 |
| WTT Star Contender Ljubljana | 2024/06/13 18:55 | Peter Hribar v Joao Geraldo | W | 0-3 |
| WTT Contender Zagreb | 2024/06/07 16:35 | Alexis Lebrun v Joao Geraldo | L | 3-0 |
| WTT Contender Zagreb | 2024/06/06 14:00 | Joao Geraldo v Cedric Nuytinck | W | 3-0 |