| Merida 3 ITF | Round | Result | H | A | 
		
			| 17.12. |  | Bonic / Melan - Kato / Saway | QF |  |  |  | 
		
			| 16.12. |  | Kato / Saway - Furla / Molin | R16 | 6-3, 6-4 | 3.40 | 1.30 | 
		
			| Merida 2 ITF | Round | Result | H | A | 
		
			| 12.12. |  | Furla / Molin - Kato / Saway | SF | 6-4, 7-63 | 1.41 | 2.65 | 
		
			| 11.12. |  | Kato / Saway - Fourn / Janus | QF | 6-4, 6-1 | 1.36 | 3.00 | 
		
			| 09.12. |  | Kato / Saway - Hsu C / Weinh | R16 | 3-6, 6-4, 10-5 | 2.25 | 1.57 | 
		
			| Merida ITF | Round | Result | H | A | 
		
			| 03.12. |  | Melan / Peter - Kato / Saway | R16 | 6-3, 6-1 | 1.96 | 1.72 | 
		
			| Toyota ITF | Round | Result | H | A | 
		
			| 21.11. |  | Kumkh / Tanas - Hibin / Kato | QF | 7-5, 6-4 | 1.16 | 4.50 | 
		
			| 20.11. |  | Hibin / Kato - Fujiw / Omae | R16 | 7-63, 3-6, 10-8 | 2.10 | 1.66 | 
		
			| Seoul ITF | Round | Result | H | A | 
		
			| 31.10. |  | Kim S / Yu M. - Hibin / Kato | QF | 6-3, 3-6, 10-7 |  |  | 
		
			| 29.10. |  | Hibin / Kato - Lee J / Park | R16 | 6-2, 6-2 |  |  | 
		
			| Hamamatsu ITF | Round | Result | H | A | 
		
			| 24.10. |  | Hisam / Tanak - Kato / Onish | QF | 6-3, 6-3 |  |  | 
		
			| 22.10. |  | Kato / Onish - Ohta / Raina | R16 | 6-4, 6-2 |  |  | 
		
			| Margaret River ITF | Round | Result | H | A | 
		
			| 09.10. |  | Inoue / Ishiz - Kato / Kuwat | R16 | 6-2, 2-6, 10-7 |  |  | 
		
			| Perth ITF | Round | Result | H | A | 
		
			| 02.10. |  | Adamc / Patte - Kato / Kuwat | QF | 6-2, 6-4 |  |  | 
		
			| 01.10. |  | Kato / Kuwat - Holla / Peers | R16 | 6-1, 6-2 |  |  | 
		
			| Cairns ITF | Round | Result | H | A | 
		
			| 20.09. |  | Holla / Peers - Kato / Koshi | F | 7-62, 4-6, 10-7 |  |  | 
		
			| 18.09. |  | Kato / Koshi - Calde / Hadzi | SF | 62-7, 6-3, 10-3 |  |  | 
		
			| 17.09. |  | Kato / Koshi - Holla / Moria | QF | 4-6, 6-3, 10-5 |  |  | 
		
			| 16.09. |  | Kato / Koshi - James / Miyak | R16 | 7-63, 6-3 |  |  | 
		
			| Kyoto ITF | Round | Result | H | A | 
		
			| 14.09. |  | Kato / Kuwat - Ayuka / Mutag | F | 6-4, 6-2 |  |  | 
		
			| 11.09. |  | Kato / Kuwat - Onish / Yonem | SF | 6-3, 6-2 |  |  | 
		
			| 10.09. |  | Kato / Kuwat - Mukai / Sasak | QF | 6-0, 6-2 |  |  | 
		
			| 09.09. |  | Kato / Kuwat - Hatta / Osafu | R16 | 6-3, 6-1 |  |  | 
		
			| Noto ITF | Round | Result | H | A | 
		
			| 05.09. |  | Ito K / Mori - Kato / Onish | SF |  |  |  | 
		
			| 04.09. |  | Kato / Onish - Chan / Hsu W | QF |  |  |  | 
		
			| 03.09. |  | Kato / Onish - Iijim / Yonem | R16 | 6-4, 1-6, 11-9 |  |  | 
		
			| Tsukuba ITF | Round | Result | H | A | 
		
			| 27.08. |  | Lee Y / Miyaz - Eguch / Kato | R16 | 7-5, 3-6, 10-6 |  |  | 
		
			| Fort Worth ITF | Round | Result | H | A | 
		
			| 02.08. |  | Ellis / Ellis - Kato / Rose | SF | 6-4, 6-2 |  |  | 
		
			| 31.07. |  | Kato / Rose - Closs / Marti | QF | 7-5, 6-3 |  |  | 
		
			| 30.07. |  | Kato / Rose - Murdo / Sammo | R16 | 6-4, 5-7, 10-6 |  |  | 
		
			| Austin ITF | Round | Result | H | A | 
		
			| 25.07. |  | Piers / Westb - Kato / Moria | QF | 6-4, 6-4 |  |  | 
		
			| 23.07. |  | Kato / Moria - Harri / King | R16 | 6-4, 6-1 |  |  | 
		
			| Tokyo ITF | Round | Result | H | A | 
		
			| 18.06. |  | Iha K / Yamam - Kato / Minok | R16 | 5-7, 6-2, 10-5 |  |  | 
		
			| Bukhara ITF | Round | Result | H | A | 
		
			| 12.06. |  | Gabue / Kapsh - Kato / Omae | QF | 6-3, 5-7, 10-6 |  |  | 
		
			| 10.06. |  | Kato / Omae - Shari / Yang | R16 | 65-7, 6-3, 10-5 |  |  | 
		
			| Karshi 2 ITF | Round | Result | H | A | 
		
			| 04.06. |  | Betov / Prudn - Kato / Omae | QF | 66-7, 6-4, 10-8 |  |  | 
		
			| 03.06. |  | Kato / Omae - Khabi / Palki | R16 | 6-1, 6-2 |  |  | 
		
			| Karuizawa ITF | Round | Result | H | A | 
		
			| 21.05. |  | Mutag / Tanak - Kato / Ogi C | R16 | 6-4, 6-2 |  |  | 
		
			| Kurume ITF | Round | Result | H | A | 
		
			| 14.05. |  | Hsu C / Sun S - Eguch / Kato | R16 |  |  |  | 
		
			| Fukuoka ITF | Round | Result | H | A | 
		
			| 10.05. |  | Hsu C / Ishiz - Eguch / Kato | QF | 7-5, 6-4 | 1.82 | 1.82 | 
		
			| 07.05. |  | Eguch / Kato - Lykin / Sema | R16 | 6-3, 6-4 | 1.95 | 1.70 | 
		
			| Nishi-Tama ITF | Round | Result | H | A | 
		
			| 27.03. |  | Hozum / Ninom - Hibin / Kato | QF | 6-0, 6-4 |  |  | 
		
			| 26.03. |  | Hibin / Kato - Yamau / Yasun | R16 | 6-2, 6-2 |  |  | 
		
			| Kofu ITF | Round | Result | H | A | 
		
			| 20.03. |  | Han N / Yang - Kato / Mutag | QF | 6-3, 3-6, 10-5 |  |  | 
		
			| 18.03. |  | Kato / Mutag - Akita / Takay | R16 | 3-6, 7-5, 10-5 |  |  | 
		
			| Hong Kong 2 ITF | Round | Result | H | A | 
		
			| 10.01. |  | Li Y. / Wen X - Hozum / Kato | F | 4-6, 6-1, 12-10 |  |  | 
		
			| 09.01. |  | Hozum / Kato - Ishiz / Tanak | SF | 6-1, 6-4 |  |  | 
		
			| 08.01. |  | Hozum / Kato - Ip K. / Lee Y | QF | 7-5, 5-7, 10-5 |  |  | 
		
			| 07.01. |  | Hozum / Kato - Ma Ka / Wu H. | R16 | 6-2, 6-3 |  |  | 
		
			| Hong Kong ITF | Round | Result | H | A | 
		
			| 04.01. |  | Tang / Tian - Hozum / Kato | F | 6-2, 6-1 |  |  | 
		
			| 03.01. |  | Hozum / Kato - Lu J. / Lu J. | SF | 6-1, 6-4 |  |  | 
		
			| 02.01. |  | Hozum / Kato - Juan / Lee P | QF | 7-5, 6-4 |  |  | 
		
			| 31.12. |  | Hozum / Kato - Chen / Ma Ka | R16 | 6-1, 7-5 |  |  |