| Challenger - Liuzhou | 10/22 02:00 | 24 | [262] Ji Sung Nam v Kaichi Uchida [284] | 6-3,7-6 | |
| Challenger - Ningbo | 10/16 05:10 | 25 | [137] Tatsuma Ito v Kaichi Uchida [292] | 3-6,6-3,6-4 | |
| Challenger - Ningbo | 10/15 02:00 | 24 | [292] Kaichi Uchida v Fabien Reboul [182] | 2-6,7-5,6-3 | |
| Challenger - Nur-Sultã 2 | 10/02 07:20 | 25 | [286] Kaichi Uchida v Ilya Ivashka [132] | 1-6,4-6 | |
| Challenger - Nur-Sultã 2 | 09/30 05:00 | 24 | Andrei Iakovlev v Kaichi Uchida | 0-6,2-6 | |
| ITF - M25 Estocolmo | 09/26 12:00 | 26 | Jan Zielinski v Kaichi Uchida | 6-3,6-4 | |
| ITF - M25 Estocolmo | 09/25 12:45 | 25 | Karl Friberg v Kaichi Uchida | 4-6,4-6 | |
| Challenger - Kaohsiung | 09/17 12:35 | 25 | [256] Hiroki Moriya v Kaichi Uchida [284] | 6-4,6-2 | |
| Challenger - Kaohsiung | 09/16 04:20 | 24 | [291] James Ward v Kaichi Uchida [265] | 4-6,6-0,4-6 | |
| Challenger - Xangai | 09/12 07:00 | 26 | [265] Kaichi Uchida v Yuichi Sugita [141] | 6-7,3-6 | |
| Challenger - Xangai | 09/11 04:15 | 25 | [265] Kaichi Uchida v Yusuke Takahashi [470] | 4-6,7-6,6-0 | |
| Challenger - Jinan | 09/03 03:15 | 25 | [220] Enrique Lopez-Perez v Kaichi Uchida [259] | 7-6,6-3 | |
| Challenger - Jinan | 09/02 02:00 | 24 | [263] Yunseong Chung v Kaichi Uchida [259] | 2-6,4-6 | |
| Challenger - Baotou | 08/29 04:00 | 26 | [259] Kaichi Uchida v Sasi Kumar Mukund [285] | 6-7,2-6 | |
| Challenger - Baotou | 08/28 09:45 | 25 | Kaichi Uchida v Chuhan Wang | 6-2,7-6 | |
| Open dos EUA | 08/19 15:00 | 44 | [393] Jenson Brooksby v Kaichi Uchida [256] | 6-3,6-2 | |
| Challenger - Lexington | 07/31 17:15 | 25 | [243] Kaichi Uchida v Lloyd Glasspool [332] | 4-6,3-6 | |
| Challenger - Granby | 07/24 18:40 | 25 | [288] Ernesto Escobedo v Kaichi Uchida [240] | 7-5,6-3 | |
| Challenger - Gatineau | 07/17 21:15 | 25 | [143] Peter Polansky v Kaichi Uchida [243] | 5-7,6-2,6-1 | |
| Challenger - Gatineau | 07/15 19:35 | 24 | [243] Kaichi Uchida v Roy Smith [314] | 6-3,6-4 | |
| Challenger - Winnipeg | 07/10 20:00 | 25 | Kaichi Uchida v Justin Boulais | 6-3,3-6,3-6 | |
| Challenger - Recanati | 07/01 14:35 | 24 | [385] Illya Marchenko v Kaichi Uchida [237] | 2-6,7-6,6-4 | |
| Wimbledon | 06/24 10:00 | 44 | [103] Antoine Hoang v Kaichi Uchida [239] | 7-6,6-4 | |
| Challenger - Blois | 06/19 10:25 | 25 | Daniel Dutra Da Silva v Kaichi Uchida | 6-4,6-4 | |
| Challenger - Shymkent 2 | 06/13 08:40 | 26 | [245] Kaichi Uchida v Lorenzo Giustino [144] | 3-6,2-6 | |
| Challenger - Shymkent 2 | 06/11 09:55 | 25 | [245] Kaichi Uchida v Alexandre Muller [288] | 6-4,7-5 | |
| Open de França | 05/21 09:20 | 44 | [251] Kaichi Uchida v Mirza Basic [192] | 6-7,3-6 | |
| ATP - Genebra | 05/19 10:30 | 164 | [244] Kaichi Uchida v Bernabe Zapata Miralles [232] | 1-6,1-6 | |
| ATP - Genebra | 05/18 11:20 | 64 | [70] Ricardas Berankis v Kaichi Uchida [244] | 4-6,4-6 | |
| Challenger Gwangju | 05/14 04:40 | 25 | [244] Kaichi Uchida v Tung-Lin Wu [287] | 1-6,4-6 |
Wikipedia - Kaichi Uchida
Kaichi Uchida (内田 海智, Uchida Kaichi, born 23 August 1994) is a Japanese professional tennis player.
Uchida has a career high ATP singles ranking of No. 147 achieved on 8 May 2023. He also has a career high ATP doubles ranking of No. 159 achieved on 28 November 2022.
Uchida has won two Challengers and reached 14 ITF Futures singles finals, where he won the title on 8 occasions. Additionally, he has won one Challenger title and reached 17 ITF Futures doubles finals, and won the title 11 times.
History
2021: Maiden Challenger title
He won his first career ATP Challenger Tour singles title in December 2021 in Rio de Janeiro, Brazil where he defeated Nicolás Álvarez Varona of Spain.
2022: ATP debut and first win
He made his ATP debut at the 2022 Los Cabos Open as a qualifier.
Having received a wildcard, he recorded his first ATP main-draw match win at the Korea Open defeating wildcard Hong Seong-chan.
2023: Top 150 debut
He reached the top 150 on 24 April 2023.