| Challenger Taipei | 10/22 13:35 | 25 |
[265] Rio Noguchi v
Benoit Paire
[281]
|
5-7,5-7 | |
| Challenger Shenzhen | 10/17 02:30 | 26 |
[137] Mackenzie McDonald
v
Rio Noguchi [260]
|
6-2,6-3 | |
| Challenger Shenzhen | 10/15 02:00 | 25 |
Yusuke Takahashi
v
Rio Noguchi
|
3-6,2-6 | |
| ITF M25 Cairns | 10/06 02:40 | 29 |
[288] Rio Noguchi v
Blake Ellis
[368]
|
6-7,6-4,7-6 | |
| ITF M25 Cairns | 10/05 02:30 | 28 |
[288] Rio Noguchi v
Edward Winter
[321]
|
6-4,6-2 | |
| ITF M25 Cairns | 10/04 01:00 | 27 |
Rio Noguchi v
Alexander Klintcharov
|
6-2,6-1 | |
| ITF M25 Cairns | 10/03 04:05 | 26 |
[288] Rio Noguchi v
Colin Sinclair
[334] |
6-2,6-2 | |
| ITF M25 Cairns | 10/01 05:00 | 25 |
Rio Noguchi v
James Watt
|
6-2,6-2 | |
| Challenger Nonthaburi | 09/26 05:10 | 26 |
[296] Rio Noguchi v
Dalibor Svrcina
[295]
|
4-6,5-7 | |
| Challenger Nonthaburi | 09/24 07:15 | 25 |
[106] Maximilian Marterer
v
Rio Noguchi [295]
|
6-7,5-7 | |
| Challenger Guangzhou | 09/09 06:15 | 25 |
[302] Rio Noguchi v
Terence Atmane
[120]
|
3-6,4-6 | |
| Challenger Shanghai | 09/03 10:00 | 25 |
[302] Rio Noguchi v
Federico Agustin Gomez
[182]
|
5-7,6-7 | |
| Challenger Shanghai | 09/02 05:15 | 19 |
[302] Rio Noguchi v
Jie Cui
[397]
|
7-6,6-2 | |
| Challenger Shanghai | 09/01 11:40 | 14 |
Rio Noguchi v
Mirza Basic
|
6-7,7-5,6-0 | |
| Challenger Zhangjiagang | 08/30 06:05 | 27 |
[302] Rio Noguchi v
Mark Lajal
[247]
|
4-6,2-6 | |
| Challenger Zhangjiagang | 08/28 02:00 | 26 |
[397] Jie Cui
v
Rio Noguchi [302]
|
6-0,3-6,1-6 | |
| Challenger Zhangjiagang | 08/27 02:00 | 25 |
[302] Rio Noguchi v
Mikalai Haliak
[439] |
6-3,6-3 | |
| Challenger Jinan | 08/24 03:30 | 29 |
Rio Noguchi v
Yibing Wu
|
5-7,3-6 | |
| Challenger Jinan | 08/23 04:25 | 28 |
[261] Yuta Shimizu
v
Rio Noguchi [333]
|
6-7,6-3,5-7 | |
| Challenger Jinan | 08/22 05:25 | 27 |
[359] Woobin Shin
v
Rio Noguchi [333]
|
3-6,2-6 | |
| Challenger Jinan | 08/21 02:30 | 26 |
[397] Spain
v
Rio Noguchi [333]
|
3-6,3-6 | |
| Challenger Jinan | 08/19 08:00 | 25 |
[393] Bogdan Bobrov
v
Rio Noguchi [338]
|
5-7,4-6 | |
| Challenger Lexington | 07/30 15:15 | 25 |
[341] Rio Noguchi v
Learner Tien
[242]
|
4-6,1-6 | |
| Challenger Chicago | 07/22 16:00 | 19 |
[249] Mark Lajal
v
Rio Noguchi [321]
|
6-3,6-2 | |
| Challenger Chicago | 07/21 15:00 | 14 |
[385] Kaichi Uchida
v
Rio Noguchi [335]
|
0-6,1-6 | |
| Challenger Granby | 07/18 19:20 | 26 |
[430] Bruno Kuzuhara
v
Rio Noguchi [335]
|
6-3,6-4 | |
| Challenger Granby | 07/16 16:30 | 25 |
[246] Mark Lajal
v
Rio Noguchi [335]
|
6-3,5-7,3-6 | |
| Challenger Granby | 07/15 15:35 | 19 |
[335] Rio Noguchi v
Ryuki Matsuda
[321] |
6-7,6-3,7-5 | |
| Challenger Granby | 07/14 19:10 | 14 |
Rio Noguchi v
Quinn Vandecasteele
|
3-6,7-6,6-3 | |
| ATP Mallorca | 06/22 10:40 | 14 |
[79] Thiago Monteiro
v
Rio Noguchi [323]
|
7-6,6-0 |
Rio Noguchi (野口莉央, Noguchi Rio; born 28 December 1998) is a Japanese professional tennis player. He has a career high ATP singles ranking of No. 196 achieved on 18 August 2025 and a doubles ranking of No. 177 achieved on 5 May 2025.
Noguchi made his ATP main draw debut at the 2022 Rakuten Japan Open Tennis Championships after qualifying for the singles main draw, defeating Tatsuma Ito and Yusuke Takahashi to qualify. He won his first ATP and ATP 500 level match defeating fellow qualifier Ramkumar Ramanathan. He lost to Denis Shapovalov in the second round. As a result, he climbed 75 positions up the rankings into the top 250 on 17 October 2022.