| Bangalore challenger | Round | Result | H | A | 
		
			| 22.11. |  | Clarke J. - Ramanathan R. | R16 | 63-7, 6-2, 6-4 | 2.98 | 1.35 | 
		
			| 21.11. |  | Ramanathan R. - Grenier H. | 1R | 4-6, 6-4, 6-3 | 1.32 | 3.16 | 
		
			| Pune challenger | Round | Result | H | A | 
		
			| 18.11. |  | Bhambri Y. - Ramanathan R. | F | 4-6, 6-3, 6-4 | 1.36 | 2.90 | 
		
			| 17.11. |  | Ramanathan R. - Myneni S. | SF | 6-3, 6-2 | 1.56 | 2.31 | 
		
			| 16.11. |  | Ramanathan R. - Milojevic N. | QF | 6-1, 7-5 | 1.96 | 1.77 | 
		
			| 15.11. |  | Ramanathan R. - Klein B. | R16 | 7-67, 6-3 | 1.77 | 1.97 | 
		
			| 14.11. |  | Ramanathan R. - Polmans M. | 1R | 65-7, 7-65, 7-69 | 1.64 | 2.15 | 
		
			| Fairfield challenger | Round | Result | H | A | 
		
			| 10.10. |  | Kamke T. - Ramanathan R. | 1R | 6-4, 4-6, 6-4 | 1.74 | 2.02 | 
		
			| Stockton challenger | Round | Result | H | A | 
		
			| 03.10. |  | Harrison C. - Ramanathan R. | 1R | 6-1, 6-2 | 2.02 | 1.73 | 
		
			| Tiburon challenger | Round | Result | H | A | 
		
			| 26.09. |  | Choinski J. - Ramanathan R. | 1R | 6-1, 6-2 | 3.57 | 1.27 | 
		
			| US Open | Round | Result | H | A | 
		
			| 24.08. |  | Mahut N. - Ramanathan R. | Q-2R | 6-3, 65-7, 6-2 | 1.61 | 2.22 | 
		
			| 23.08. |  | Ramanathan R. - Mathieu P. | Q-1R | 6-4, 6-4 | 1.59 | 2.27 | 
		
			| Cincinnati | Round | Result | H | A | 
		
			| 16.08. |  | Donaldson J. - Ramanathan R. | 2R | 6-4, 2-6, 6-4 | 1.20 | 4.58 | 
		
			| 15.08. |  | Ramanathan R. - Eubanks C. | 1R | 65-7, 6-1, 6-4 | 2.11 | 1.71 | 
		
			| 13.08. |  | Marterer M. - Ramanathan R. | Q-R16 | 7-66, 7-62 | 1.53 | 2.41 | 
		
			| 12.08. |  | Ramanathan R. - Lajovic D. | Q-1R | 7-61, 6-4 | 2.74 | 1.35 | 
		
			| Aptos challenger | Round | Result | H | A | 
		
			| 08.08. |  | Laaksonen H. - Ramanathan R. | 1R | 6-3, 6-2 | 1.48 | 2.50 | 
		
			| Washington | Round | Result | H | A | 
		
			| 01.08. |  | Pella G. - Ramanathan R. | 1R | 6-4, 6-1 | 1.65 | 2.21 | 
		
			| 30.07. |  | Ramanathan R. - Matosevic M. | Q-R16 | 7-5, 6-3 | 1.44 | 2.61 | 
		
			| Binghamton challenger | Round | Result | H | A | 
		
			| 25.07. |  | Norrie C. - Ramanathan R. | 1R | 7-63, 6-2 | 2.12 | 1.66 | 
		
			| Winnetka challenger | Round | Result | H | A | 
		
			| 16.07. |  | Santillan A. - Ramanathan R. | F | 7-61, 6-2 | 1.74 | 1.99 | 
		
			| 15.07. |  | Ramanathan R. - Paul T. | SF | 4-6, 6-3, 6-2 | 2.02 | 1.73 | 
		
			| 13.07. |  | Ramanathan R. - Koepfer D. | QF | 6-4, 6-3 | 1.55 | 2.34 | 
		
			| 12.07. |  | Ramanathan R. - Aragone J. | R16 | 7-5, 6-2 | 1.26 | 3.58 | 
		
			| 11.07. |  | Ramanathan R. - Klahn B. | 1R | 3-6, 7-64, 7-69 | 1.92 | 1.80 | 
		
			| Recanati challenger | Round | Result | H | A | 
		
			| 06.07. |  | Caruso S. - Ramanathan R. | R16 | 65-7, 6-3, 7-5 | 2.23 | 1.60 | 
		
			| 04.07. |  | Ramanathan R. - Kudryavtsev A. | 1R | 4-6, 6-2, 6-3 | 1.47 | 2.55 | 
		
			| Futures 2017 | Round | Result | H | A | 
		
			| 11.06. |  | Ramanathan R. - Hu N. | F | 7-64, 6-2 | 1.12 | 5.25 | 
		
			| 10.06. |  | Ramanathan R. - Ly N. | SF | 7-64, 6-1 | 1.18 | 4.11 | 
		
			| 09.06. |  | Ramanathan R. - Huesler M. | QF | 6-4, 6-4 | 1.04 | 7.80 | 
		
			| 08.06. |  | Ramanathan R. - Barki J. | R16 | 6-1, 6-1 | 1.01 | 11.75 | 
		
			| 07.06. |  | Ramanathan R. - Blanco Guadalupe J. | 1R | 6-2, 6-2 | 1.01 | 10.89 | 
		
			| 04.06. |  | Ramanathan R. - Sarmiento R. | F | 6-2, 6-2 | 1.55 | 2.25 | 
		
			| 03.06. |  | Ramanathan R. - Prasanth V. | SF | 6-3, 6-2 | 1.32 | 3.00 | 
		
			| 02.06. |  | Ramanathan R. - Rawat S. | QF | 7-5, 6-3 | 1.11 | 5.17 | 
		
			| 01.06. |  | Ramanathan R. - Onoda K. | R16 | 6-1, 6-2 | 1.03 | 7.99 | 
		
			| 30.05. |  | Ramanathan R. - Alam S. | 1R | 6-1, 6-0 | 1.02 | 13.58 | 
		
			| Karshi challenger | Round | Result | H | A | 
		
			| 09.05. |  | Ilkel C. - Ramanathan R. | 1R | 6-4, 6-4 | 2.59 | 1.45 | 
		
			| Leon challenger | Round | Result | H | A | 
		
			| 27.03. |  | Petrovic D. - Ramanathan R. | Q-1R | 6-3, 3-6, 6-1 | 2.58 | 1.43 | 
		
			| Guadalajara challenger | Round | Result | H | A | 
		
			| 20.03. |  | De Minaur A. - Ramanathan R. | Q-QF | 7-62, 5-7, 6-4 | 1.47 | 2.59 | 
		
			| 20.03. |  | Ramanathan R. - Londero J. | Q-R16 | 6-3, 6-1 |  |  | 
		
			| 19.03. |  | Ramanathan R. - Galan D. | Q-1R | 7-5, 6-2 | 1.42 | 2.69 | 
		
			| Irving challenger | Round | Result | H | A | 
		
			| 14.03. |  | Rublev A. - Ramanathan R. | Q-QF | 3-6, 6-3, 6-2 | 1.28 | 3.37 | 
		
			| 13.03. |  | Ramanathan R. - Kovalik J. | Q-R16 | 7-6, 6-3 |  |  | 
		
			| 13.03. |  | Ramanathan R. - Gaio F. | Q-1R | 5-7, 6-1, 6-4 | 3.13 | 1.33 | 
		
			| Tempe challenger | Round | Result | H | A | 
		
			| 13.02. |  | Escobedo E. - Ramanathan R. | 1R | 6-2, 6-3 | 1.23 | 3.93 | 
		
			| Chennai | Round | Result | H | A | 
		
			| 03.01. |  | Bhambri Y. - Ramanathan R. | 1R | 6-1, 6-1 | 1.44 | 2.72 |