| Fairfield challenger | Round | Result | H | A | 
		
			| 08.10. |  | Gomez F. - Vandecasteele Q. | Q-1R | 7-5, 6-2 | 1.71 | 2.05 | 
		
			| Cary 2 challenger | Round | Result | H | A | 
		
			| 10.09. |  | Pannu K. - Vandecasteele Q. | Q-1R | 6-2, 4-6, 6-0 | 2.34 | 1.55 | 
		
			| US Open | Round | Result | H | A | 
		
			| 22.08. |  | Bagnis F. - Vandecasteele Q. | Q-1R | 6-1, 6-2 | 1.47 | 2.64 | 
		
			| Stanford challenger | Round | Result | H | A | 
		
			| 12.08. |  | Smith K. - Vandecasteele Q. | Q-1R | 7-5, 611-7, 6-3 | 1.89 | 1.83 | 
		
			| Cary challenger | Round | Result | H | A | 
		
			| 08.08. |  | Moreno De Alboran N. - Vandecasteele Q. | 1R | 6-3, 7-5 | 1.30 | 3.41 | 
		
			| 07.08. |  | Vandecasteele Q. - Ponwith N. | Q-R16 | 6-4, 6-2 | 1.39 | 2.84 | 
		
			| 06.08. |  | Vandecasteele Q. - Kirchheimer S. | Q-1R | 5-7, 6-3, 6-2 | 1.74 | 2.01 | 
		
			| Futures 2023 | Round | Result | H | A | 
		
			| 03.08. |  | Nakagawa N. - Vandecasteele Q. | R16 | 6-4, 6-1 | 1.84 | 1.85 | 
		
			| 02.08. |  | Vandecasteele Q. - Salle F. | 1R | 6-4, 6-4 | 1.11 | 5.49 | 
		
			| 30.07. |  | Vandecasteele Q. - McHugh A. | F | 6-3, 7-65 | 2.60 | 1.43 | 
		
			| 29.07. |  | Vandecasteele Q. - Baris O. | SF | 6-1, 6-3 | 1.78 | 1.92 | 
		
			| 28.07. |  | Vandecasteele Q. - Nakagawa N. | QF | 6-4, 6-1 | 2.31 | 1.54 | 
		
			| 28.07. |  | Vandecasteele Q. - Williams C. | R16 | 6-3, 6-4 | 1.79 | 1.91 | 
		
			| 26.07. |  | Vandecasteele Q. - Baker B. | 1R | 6-4, 5-7, 7-64 | 1.52 | 2.35 | 
		
			| 25.07. |  | Vandecasteele Q. - Ciocanu A. | Q-R16 | 6-1, 6-4 | 1.05 | 7.33 | 
		
			| 24.07. |  | Vandecasteele Q. - Nettles J. | Q-1R | 7-5, 6-4 | 1.07 | 6.00 | 
		
			| Chicago challenger | Round | Result | H | A | 
		
			| 09.07. |  | Jasika O. - Vandecasteele Q. | Q-1R | 7-5, 6-1 | 1.25 | 3.68 | 
		
			| Futures 2023 | Round | Result | H | A | 
		
			| 07.07. |  | Perez A. - Vandecasteele Q. | QF | 4-6, 6-3, 6-0 | 1.63 | 2.15 | 
		
			| 06.07. |  | Vandecasteele Q. - Kumar O. | R16 | 0-6, 7-5, 7-5 | 2.72 | 1.40 | 
		
			| 06.07. |  | Vandecasteele Q. - Neuhaus A. | 1R | 6-3, 6-3 | 1.30 | 3.20 | 
		
			| 02.07. |  | Tien L. - Vandecasteele Q. | F | 7-5, 6-2 | 1.47 | 2.50 | 
		
			| 01.07. |  | Vandecasteele Q. - Winter E. | SF | 4-6, 6-4, 6-0 | 1.55 | 2.29 | 
		
			| 30.06. |  | Vandecasteele Q. - Claverie L. | QF | 6-3, 6-3 | 1.69 | 2.03 | 
		
			| 29.06. |  | Vandecasteele Q. - Dostanic S. | R16 | 5-7, 7-5, 2-0 | 1.94 | 1.77 | 
		
			| 29.06. |  | Vandecasteele Q. - Rivera H. | 1R | 6-2, 6-3 | 1.34 | 3.00 | 
		
			| 27.06. |  | Vandecasteele Q. - Ozolins K. | Q-R16 | 6-1 | 2.05 | 1.60 | 
		
			| 26.06. |  | Vandecasteele Q. - Dalmasso G. | Q-1R | 1-6, 6-3, 10-6 | 1.15 | 4.20 | 
		
			| 25.06. |  | Kumar O. - Vandecasteele Q. | F | 6-4, 6-1 | 1.39 | 2.74 | 
		
			| 24.06. |  | Vandecasteele Q. - Seggerman R. | SF | 6-1, 6-4 | 2.01 | 1.71 | 
		
			| 23.06. |  | Vandecasteele Q. - Dostanic S. | QF | 6-3, 6-1 | 2.99 | 1.35 | 
		
			| 22.06. |  | Vandecasteele Q. - Ponwith N. | R16 | 6-3, 6-3 | 3.40 | 1.27 | 
		
			| 21.06. |  | Vandecasteele Q. - Claverie L. | 1R | 4-6, 6-4, 6-3 | 2.64 | 1.42 | 
		
			| 20.06. |  | Vandecasteele Q. - Revelli G. | Q-R16 | 6-4, 4-6, 10-8 | 1.80 | 1.80 | 
		
			| 19.06. |  | Vandecasteele Q. - Maxted L. | Q-1R | 6-2, 6-1 |  |  | 
		
			| 16.06. |  | Bicknell B. - Vandecasteele Q. | QF | 4-6, 6-3, 6-3 | 1.33 | 3.02 | 
		
			| 15.06. |  | Vandecasteele Q. - Catanzariti A. | R16 | 7-63, 6-3 | 1.85 | 1.85 | 
		
			| 14.06. |  | Vandecasteele Q. - Maginley H. | 1R | 6-2, 6-3 |  |  | 
		
			| 13.06. |  | Vandecasteele Q. - Rivera H. | Q-R16 | 3-6, 6-4, 10-2 | 2.50 | 1.40 | 
		
			| 10.06. |  | Vandecasteele Q. - Bynoe E. | Q-1R | 7-6, 6-2 |  |  |