 Serbia: W15 Kursumlijska Banja - Doubles - Main |
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| Final | Marinkovic B./Terziyska J. | De Koning R./Hageman M. | 2:1 (6:3, 1:6, 10:5) | details | 22.04.2024 |
| Semi-finals | Lackova V./Volkova D. | De Koning R./Hageman M. | 0:2 (4:6, 61:7) | details | 20.04.2024 |
| Quarter-finals | Giraldi Requena A./Zaparyniuk A. | De Koning R./Hageman M. | 0:2 (1:6, 64:7) | details | 19.04.2024 |
| 1/8-finals | Bergler O./Cilekova L. | De Koning R./Hageman M. | 0:2 (62:7, 3:6) | details | 16.04.2024 |
 France: W15 Le Havre - Doubles - Main |
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| Quarter-finals | De Koning R./Hoedt M. | Battesti A./Gaillard D. | 1:2 (1:6, 6:1, 7:10) | details | 20.03.2024 |
 Spain: W15 Manacor 2 - Doubles - Main |
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| Final | De Koning R./Sijbesma M. | Genis Salas M./Roura Llaverias R. | 1:2 (3:6, 6:2, 6:10) | details | 24.02.2024 |
| Semi-finals | Cassani S./Nikcevic T. | De Koning R./Sijbesma M. | 0:2 (2:6, 0:6) | details | 23.02.2024 |
| Quarter-finals | Kwong L./Ulyashchenko A. | De Koning R./Sijbesma M. | WO. | details | 22.02.2024 |
| 1/8-finals | De Koning R./Sijbesma M. | Fernandez Rincon C./Ruud C. | 2:0 (6:3, 6:4) | details | 20.02.2024 |
| Spain: W15 Manacor - Doubles - Main |
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| Quarter-finals | De Koning R./Sijbesma M. | Paukstyte P./Petretic L. | 0:2 (4:6, 3:6) | details | 15.02.2024 |
| 1/8-finals | Bandurowska X./Marcon M. | De Koning R./Sijbesma M. | 0:2 (2:6, 63:7) | details | 14.02.2024 |
 Tunisia: W15 Monastir 3 - Doubles - Main |
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| Final | Boehner L./Hutchinson H. | De Koning R./Sijbesma M. | 2:0 (6:4, 7:64) | details | 03.02.2024 |
| Semi-finals | De Koning R./Sijbesma M. | Plaza Araujo L./Tran D. | 2:0 (6:0, 6:3) | details | 03.02.2024 |
| Quarter-finals | Brack C./Iordache A. | De Koning R./Sijbesma M. | 0:2 (1:6, 4:6) | details | 01.02.2024 |
| 1/8-finals | Lee E./Wi H. W. | De Koning R./Sijbesma M. | 0:2 (5:7, 1:6) | details | 31.01.2024 |
 Turkey: W15 Antalya 22 - Doubles - Main |
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| Final | Toth A. K./Zolotareva R. | De Koning R./Hageman M. | 2:0 (6:1, 6:4) | details | 16.12.2023 |
| Semi-finals | De Koning R./Hageman M. | Jovanovic M./Stojanova J. | 2:1 (4:6, 6:0, 10:4) | details | 15.12.2023 |
| Quarter-finals | Tsygourova K./Valente D. | De Koning R./Hageman M. | WO. | details | 14.12.2023 |
| 1/8-finals | Marquez D. B./Nikolenko T. | De Koning R./Hageman M. | 0:2 (1:6, 3:6) | details | 12.12.2023 |
| Turkey: W15 Antalya 18 - Doubles - Main |
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| Quarter-finals | Pospelova A./Rasskovskaia L. | De Koning R./Hageman M. | 2:0 (6:4, 7:5) | details | 16.11.2023 |
| 1/8-finals | Iudenko I./Tuayeva A. | De Koning R./Hageman M. | 1:2 (1:6, 6:3, 7:10) | details | 15.11.2023 |
| Turkey: W15 Antalya 17 - Doubles - Main |
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| Final | De Koning R./Hageman M. | Ionescu I. A./Safta A. | 2:0 (7:65, 6:2) | details | 11.11.2023 |
| Semi-finals | Lazarevic A./Tanasie L. | De Koning R./Hageman M. | 0:2 (2:6, 5:7) | details | 10.11.2023 |
| Quarter-finals | De Koning R./Hageman M. | Lazar S./Pochtovyk K. | 2:0 (6:0, 6:4) | details | 09.11.2023 |
| 1/8-finals | De Koning R./Hageman M. | Bulbarella M./Moron F. B. | 2:0 (6:1, 6:2) | details | 08.11.2023 |
 Netherlands: W15 Haren - Doubles - Main |
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| Final | Gadient N./Voracek E. M. | De Koning R./Sijbesma M. | 0:2 (3:6, 2:6) | details | 09.09.2023 |
| Semi-finals | Chlpac A./Hering K. | De Koning R./Sijbesma M. | 0:1 RET. (2:6, 0:0) | details | 08.09.2023 |
| Quarter-finals | Havermans D./Veldman K. | De Koning R./Sijbesma M. | 0:2 (2:6, 1:6) | details | 07.09.2023 |
| 1/8-finals | Van Bommel R./Van Poppel E. | De Koning R./Sijbesma M. | 0:2 (5:7, 1:6) | details | 06.09.2023 |
| Netherlands: W40 Oldenzaal - Doubles - Main |
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| Semi-finals | Haverlag I./Vedder E. | De Koning R./Sijbesma M. | 2:0 (6:2, 6:1) | details | 01.09.2023 |
| Quarter-finals | Lamens S./Stevens L. | De Koning R./Sijbesma M. | 1:2 (7:5, 5:7, 9:11) | details | 31.08.2023 |
| 1/8-finals | Hoedt M./Van Emst S. | De Koning R./Sijbesma M. | 0:2 (1:6, 4:6) | details | 29.08.2023 |
 Belgium: W15 Wanfercee-Baulet - Doubles - Main |
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| 1/8-finals | De Koning R./Sijbesma M. | El Aouni A./Modesti V. | 1:2 (2:6, 6:2, 5:10) | details | 23.08.2023 |
| Belgium: W15 Duffel - Doubles - Main |
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| Quarter-finals | Gettwart F./Tran L. | De Koning R./Sijbesma M. | 2:1 (6:2, 5:7, 10:6) | details | 17.08.2023 |
| 1/8-finals | Barth A./Gadient N. | De Koning R./Sijbesma M. | 0:2 (3:6, 3:6) | details | 15.08.2023 |
 Thailand: W15 Nakhon Si Thammarat 3 - Doubles - Main |
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| 1/8-finals | Kovapitukted P./Kuearum S. | De Koning R./Sijbesma M. | 2:0 (6:1, 6:2) | details | 11.07.2023 |
| Thailand: W25 Nakhon Si Thammarat 2 - Doubles - Main |
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| 1/8-finals | De Koning R./Sijbesma M. | Chanta A./Tararudee L. | 0:2 (3:6, 1:6) | details | 04.07.2023 |
| Tunisia: W15 Monastir 20 - Doubles - Main |
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| Quarter-finals | Dal S./Wildgruber A. | De Koning R./Sijbesma M. | 2:0 (6:3, 6:4) | details | 22.06.2023 |
| 1/8-finals | Arystanbekova A./Baidaulet D. | De Koning R./Sijbesma M. | 0:2 (0:6, 1:6) | details | 21.06.2023 |
| Tunisia: W15 Monastir 19 - Doubles - Main |
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| Final | Ezzat Y./Stagno B. | De Koning R./Sijbesma M. | 2:0 (6:1, 6:4) | details | 17.06.2023 |
| Semi-finals | Cirpanli D./Turkmen D. | De Koning R./Sijbesma M. | 0:2 (2:6, 1:6) | details | 16.06.2023 |
