| ITF M25札幌 | 09/08 02:00 | 29 | 磯村誌 v 中川直樹 | 6-3,6-2 | |
| ITF M25札幌 | 09/07 02:30 | 28 | 中川直樹 v Daisuke Sumizawa | 6-3,6-4 | |
| ITF M25札幌 | 09/06 03:50 | 27 | [500] 白石光 v 中川直樹 [446] | 7-6,6-7,1-6 | |
| ITF M25札幌 | 09/05 05:30 | 26 | 松村亮太朗 v 中川直樹 | 7-5,2-6,3-6 | |
| ITF M25札幌 | 09/03 00:45 | 25 | Hayato Matsuoka v 中川直樹 | 2-6,4-6 | |
| 聖多明哥挑戰賽 | 08/12 16:05 | 19 | [457] 中川直樹 v 克里斯蒂安•朗莫 [460] | 6-7,4-6 | |
| 聖多明哥挑戰賽 | 08/11 19:10 | 14 | 中川直樹 v Enmanuel Munoz | 6-2,6-2 | |
| 林肯挑戰賽 | 08/05 16:00 | 19 | 中川直樹 v 傑克•平寧頓•瓊斯 | 2-6,6-1,1-6 | |
| 林肯挑戰賽 | 08/04 15:00 | 14 | [423] 中川直樹 v 尼基 Kaliyanda 普納恰 [109] | 6-3,6-2 | |
| 萊克星頓挑戰賽 | 07/29 14:35 | 14 | 中川直樹 v 約書亞•拉帕達特 | 3-6,6-2,4-6 | |
| 芝加哥挑戰賽 | 07/22 16:00 | 19 | 中川直樹 v 邁克爾•鄭 | 5-7,4-6 | |
| 芝加哥挑戰賽 | 07/21 16:55 | 14 | [249] 克萊門特 Chidekh v 中川直樹 [411] | 3-6,2-6 |
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.