Head to Head
| BDO World Championship 2019 | 2018/05/12 19:15 | Jelle Klaasen v Krzysztof Ratajski | 2-6 |
| BDO World Championship 2019 | 2017/09/02 12:30 | Jelle Klaasen v Krzysztof Ratajski | 3-6 |
Home History
| Players Championship 8 2021 | 2021/03/19 12:30 | James Wilson v Jelle Klaasen | 4-6 |
| PDC UK Open 2021 | 2021/03/05 14:25 | Andy Boulton v Jelle Klaasen | 6-3 |
| PDC Winter Series 5 2020 | 2020/11/14 16:25 | Dirk van Duijvenbode v Jelle Klaasen | 6-5 |
| PDC Winter Series 3 2020 | 2020/11/12 14:30 | Jelle Klaasen v Matthew Edgar | 6-3 |
| Players Championship 19 2020 | 2020/11/10 16:00 | Jermaine Wattimena v Jelle Klaasen | 6-3 |
| European Tour 4 2020 | 2020/10/23 19:35 | Max Hopp v Jelle Klaasen | 6-1 |
| PDC Autumn Series 5 2020 | 2020/09/16 11:50 | Jose De Sousa v Jelle Klaasen | 6-5 |
| PDC Autumn Series 4 2020 | 2020/09/15 12:05 | Damon Heta v Jelle Klaasen | 6-4 |
Away History
| PDC UK Open 2021 | 2021/03/07 16:00 | Krzysztof Ratajski v Michael van Gerwen | 7-10 |
| PDC UK Open 2021 | 2021/03/06 20:15 | Krzysztof Ratajski v Jonny Clayton | 10-3 |
| PDC UK Open 2021 | 2021/03/06 14:05 | Krzysztof Ratajski v Madars Razma | 10-8 |
| PDC UK Open 2021 | 2021/03/05 20:55 | Nathan Aspinall v Krzysztof Ratajski | 5-10 |
| Players Championship 4 2021 | 2021/02/28 15:45 | Krzysztof Ratajski v Darius Labanauskas | 4-6 |
| Players Championship 3 2021 | 2021/02/27 18:10 | Joe Cullen v Krzysztof Ratajski | 6-2 |
| The Masters 2021 | 2021/01/29 20:45 | Krzysztof Ratajski v Simon Whitlock | 2-6 |
| PDC World Championship 2021 | 2021/01/01 12:15 | Krzysztof Ratajski v Stephen Bunting | 3-5 |