| ITF美国F18 | 06/15 19:30 | 26 | 肖恩 H. 哈达维 v 直树中川 | 3-6,6-7 | |
| ITF美国F18 | 06/14 21:30 | 25 | 利卡多•罗德瑞格兹 v 直树中川 | 6-7,4-6 | |
| ITF日本F7 | 06/09 01:00 | 27 | Haru Inoue v 直树中川 | 6-3,6-3 | |
| ITF日本F7 | 06/08 04:25 | 26 | Sora Fukuda v 直树中川 | 6-2,5-7,4-6 | |
| ITF日本F7 | 06/08 01:00 | - | Sora Fukuda v 直树中川 | 6-2,5-7,4-6 | |
| ITF日本F7 | 06/06 04:00 | 25 | 乔汉•尼克利斯 v 直树中川 | 1-6,1-6 | |
| ITF中国F9 | 06/02 03:30 | 27 | 何塞•斯塔萨姆 v 直树中川 | 6-3,6-4 | |
| ITF中国F9 | 06/01 02:00 | 26 | 直树中川 v 张泽 | 弃权 | |
| ITF中国F9 | 05/31 04:10 | 25 | 直树中川 v 吴昊 | 6-2,6-4 | |
| ITF中国F8 | 05/23 04:00 | 25 | 直树中川 v 塔库托∙尼基 | 3-6,2-6 | |
| ITF中国F7 | 05/19 06:25 | 27 | 直树中川 v 王楚涵 | 6-7,6-4,2-6 | |
| ITF中国F7 | 05/18 02:00 | 26 | 李喆 v 直树中川 | 6-3,3-6,4-6 | |
| ITF中国F7 | 05/16 07:40 | 25 | 托马斯•凡科特 v 直树中川 | 6-3,6-7,4-6 | |
| ITF美国F16 | 05/03 15:50 | 25 | 艾赛亚•斯特罗德 v 直树中川 | 6-3,6-3 | |
| ITF美国F15 | 04/25 15:00 | 25 | 卢卡斯•奥勒特 v 直树中川 | 7-6,6-3 | |
| ITF美国F14 | 04/19 14:00 | 25 | 直树中川 v 卡梅隆•斯尔弗曼 | 5-7,6-4,2-6 | |
| ITF意大利F7 | 04/05 17:15 | 26 | 塞尔瓦托•卡鲁索 v 直树中川 | 6-1,7-5 | |
| ITF意大利F7 | 04/04 10:30 | 25 | 沃尔特•特鲁森迪 v 直树中川 | 3-6,6-2,3-6 | |
| ITF意大利F7资格赛 | 04/02 07:30 | 54 | 直树中川 v 亚历山大•韦斯 | 6-7,6-3,6-0 | |
| ITF意大利F7资格赛 | 04/01 07:30 | 54 | 直树中川 v 乔治•温克勒 | 6-4,7-5 | |
| ITF克罗地亚F3 | 03/26 09:00 | 29 | 直树中川 v 扬尼克·范登布尔克 | 1-6,2-6 | |
| ITF克罗地亚F3 | 03/25 10:00 | 28 | 尤里•罗季奥诺夫 v 直树中川 | 4-6,6-2,4-6 | |
| ITF克罗地亚F3 | 03/24 10:00 | 27 | 阿伦•阿维兹巴 v 直树中川 | 3-6,6-4,2-6 | |
| ITF克罗地亚F3 | 03/23 09:00 | 26 | 直树中川 v 尼诺•塞尔达鲁什奇 | 7-6,1-6,6-4 | |
| ITF克罗地亚F3 | 03/22 10:05 | 25 | 亚历山德拉•拉札雷夫 v 直树中川 | 2-6,0-6 | |
| ITF克罗地亚F3 | 03/20 13:30 | 60 | 直树中川 v 阿伦•阿维兹巴 | 3-6,4-6 | |
| ITF克罗地亚F3 | 03/20 09:00 | 60 | 直树中川 v 马可•米塞利 | 7-6,6-2 | |
| ITF克罗地亚F3 | 03/19 08:30 | 60 | 直树中川 v 卢卡斯•克莱纳 | 6-4,6-2 | |
| ITF克罗地亚F3 | 03/18 10:30 | 60 | 直树中川 v Marin Jurkovic | 6-0,6-1 | |
| ITF克罗地亚F2 | 03/12 13:00 | 60 | 直树中川 v 蒂姆∙范特海登 | 3-6,7-5,3-6 |
Naoki Nakagawa (中川直樹, Nakagawa Naoki, born 19 November 1996) is a Japanese tennis player.
Nakagawa has a career high ATP singles ranking of world No, 531 achieved on 24 July 2017. He also has a career high ATP doubles ranking of world No. 726 achieved on 30. July 2018.
As a junior, Nakagawa reached his highest ranking of number 9 in the world in the combined singles and doubles ITF junior ranking system. His junior tenure was highlighted and capped off by winning the boys' doubles title at the 2014 US Open where he alongside Australia's Omar Jasika defeated the Brazilian duo or João Menezes and Rafael Matos in straight sets 6–3, 7–6(8–6).
Nakagawa has reached 10 singles finals, with a record of 3 wins and 7 losses. Additionally, he has reached 6 doubles finals with a record of 2 wins and 4 losses. All 16 combined final appearances he has made come at the ITF Futures level.