| Irish Open MD | 11/14 14:20 | 5 | Jansen J R / Kaesbauer P v Delrue F / Lovang K | W | 2-0 | |
| SaarLorLux Open 2019, MD | 11/02 16:00 | 2 | Di / Wang v Jansen J R / Kaesbauer P | L | 2-1 | |
| SaarLorLux Open 2019, MD | 11/01 16:00 | 3 | Dunn/Hall v Jansen J R / Kaesbauer P | W | 1-2 | |
| SaarLorLux Open 2019, MD | 10/31 17:15 | 4 | Jansen J R / Kaesbauer P v Geiss B / Volker J C | W | 2-0 | |
| SaarLorLux Open 2019, MD | 10/30 12:00 | 5 | Jansen J R / Kaesbauer P v Kruchten F / Santoro I | W | 2-0 | |
| Dutch Open MD | 10/10 15:55 | 4 | Ivanov V / Sozonov I v Jansen J R / Kaesbauer P | L | 2-1 | |
| Dutch Open MD | 10/09 08:20 | 5 | Jansen J R / Kaesbauer P v Dunn/Hall | W | 2-0 | |
| Belgian Int. MD | 09/13 17:50 | 2 | Jansen J R / Kaesbauer P v Lane/Vendy | L | 0-2 | |
| Belgian Int. MD | 09/13 10:00 | 1 | Daugaard D / Mogensen C v Jansen J R / Kaesbauer P | W | 1-2 | |
| Belgian Int. MD | 09/12 19:15 | 4 | Adam / Maio v Jansen J R / Kaesbauer P | W | 1-2 | |
| Kharkiv International 2019, MD | 09/07 08:00 | 3 | Jansen J R / Kaesbauer P v Lane/Vendy | L | 1-2 | |
| Kharkiv International 2019, MD | 09/06 12:30 | 4 | Russ Z / Stallwood S v Jansen J R / Kaesbauer P | W | 1-2 | |
| Russia Open 2019, MD | 07/19 06:40 | 3 | Jansen J R / Kaesbauer P v Boe M / Conrad-Petersen M | L | 0-2 | |
| Russia Open 2019, MD | 07/18 05:15 | 4 | Chun / Hassan v Jansen J R / Kaesbauer P | W | 0-2 | |
| Russia Open 2019, MD | 07/17 06:00 | 5 | Bakhshullaev A / Savatyugin A v Jansen J R / Kaesbauer P | W | 0-2 | |
| US Open 2019, MD | 07/10 19:00 | 5 | Lu/Yang v Jansen J R / Kaesbauer P | L | 2-0 | |
| Canada Open MD | 07/03 15:00 | 5 | Jansen J R / Kaesbauer P v Matsui/Takeuchi | L | 0-2 | |
| Spanish Int. MD | 06/14 13:30 | - | Boe M / Conrad-Petersen M v Jansen J R / Kaesbauer P | L | 2-0 | |
| Spanish Int. MD | 06/14 11:00 | - | Jansen J R / Kaesbauer P v Arends J / Jille R | W | 2-1 | |
| Azerbaijan Int. MD | 06/08 09:30 | - | Ellis M / Langridge C v Jansen J R / Kaesbauer P | L | 2-1 | |
| Sudirman Cup MD | 05/19 10:00 | - | Jansen J R / Kaesbauer P v Bar Netzer/Shainski | W | 2-0 | |
| Denmark Int. MD | 05/11 09:30 | - | Gicquel T / Labar R v Jansen J R / Kaesbauer P | L | 2-0 | |
| Denmark Int. MD | 05/10 11:30 | - | Jansen J R / Kaesbauer P v Hybel E / Thogersen M | W | 2-0 | |
| Finnish Open MD | 04/07 09:00 | - | Fikri/Maulana v Jansen J R / Kaesbauer P | L | 2-0 | |
| Finnish Open MD | 04/06 15:00 | - | Jansen J R / Kaesbauer P v Lee/Yang | W | 2-1 | |
| Finnish Open MD | 04/06 09:00 | - | Mitsuhashi K / Ogura Y v Jansen J R / Kaesbauer P | W | 0-2 | |
| Finnish Open MD | 04/05 17:40 | - | Jansen J R / Kaesbauer P v Kona T / Lim K W | W | 2-1 | |
| Open de Pologne - Doubles Hommes | 03/30 11:00 | - | Lane/Vendy v Jansen J R / Kaesbauer P | L | 2-0 | |
| Orleans Masters MD | 03/20 15:20 | 5 | Jansen J R / Kaesbauer P v Lee Y / Lu C Y | L | 1-2 | |
| Open de Suisse - Doubles Hommes | 03/13 14:30 | 5 | Ho-Shue J A / Yakura N v Jansen J R / Kaesbauer P | L | 2-0 |