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 |