| Challenger Bangkok 1A | 02/19 05:55 | 25 | [274] Kaichi Uchida v Marc Polmans [217] | 2-6,5-7 | |
| Challenger Bangkok 1A | 02/18 07:10 | 24 | [268] Max Purcell v Kaichi Uchida [274] | 3-6,1-6 | |
| Challenger Dallas | 02/04 21:50 | 24 | [352] Jared Hiltzik v Kaichi Uchida [270] | 6-2,4-6,7-5 | |
| Challenger Cleveland | 01/29 18:10 | 24 | [335] Maxime Cressy v Kaichi Uchida [269] | 4-6,6-3,7-5 | |
| Challenger Newport Beach | 01/24 18:00 | 26 | [171] Darian King v Kaichi Uchida [287] | 6-3,4-6,6-4 | |
| Challenger Newport Beach | 01/23 19:55 | 25 | [287] Kaichi Uchida v Peter Polansky [118] | 0-6,6-3,7-6 | |
| Challenger Newport Beach | 01/22 19:45 | 24 | [318] Evan Song v Kaichi Uchida [287] | 6-7,2-6 | |
| Challenger Koblenz | 01/18 11:00 | 27 | [233] Tallon Griekspoor v Kaichi Uchida [287] | 6-3,7-5 | |
| Challenger Koblenz | 01/17 11:40 | 26 | [202] Adam Pavlasek v Kaichi Uchida [287] | 2-6,6-3,6-7 | |
| Challenger Koblenz | 01/16 14:00 | 25 | [287] Kaichi Uchida v Arthur De Greef [199] | 7-6,6-4 | |
| Challenger Koblenz | 01/15 17:00 | 24 | [287] Kaichi Uchida v Bernabe Zapata Miralles [272] | 0-6,6-2,7-5 | |
| Challenger Columbus | 01/07 16:40 | 24 | [325] Vincent Millot v Kaichi Uchida [282] | 6-4,6-4 | |
| Challenger Orlando | 12/31 15:00 | 24 | [282] Kaichi Uchida v Evan Song [320] | 1-6,2-6 | |
| Australian Open WC | 12/01 04:15 | 28 | [283] Kaichi Uchida v Zhang Ze [220] | 4-6,1-6 | |
| Australian Open WC | 11/30 05:20 | 27 | Kaichi Uchida v Yu Hsiou Hsu | 6-2,6-2 | |
| Australian Open WC | 11/28 03:35 | 26 | [283] Kaichi Uchida v Tung-Lin Wu [479] | 7-6,5-7,7-6 | |
| Challenger Champaign | 11/14 21:15 | 26 | [285] Kaichi Uchida v Reilly Opelka [116] | 7-6,4-6,6-7 | |
| Challenger Champaign | 11/12 17:35 | 25 | Sebastian Korda v Kaichi Uchida | 5-7,7-6,4-6 | |
| Challenger Charlottesville | 10/27 19:10 | 45 | [279] Kaichi Uchida v Takanyi Garanganga [473] | 3-6,6-4,6-7 | |
| Challenger Las Vegas | 10/20 18:35 | 45 | Kaichi Uchida v Dayne Kelly | 3-6,3-6 | |
| Challenger Calgary | 10/16 16:00 | 25 | [299] Mathias Bourgue v Kaichi Uchida [283] | 6-7,6-2,6-2 | |
| Challenger Fairfield | 10/06 17:00 | 45 | [437] Pablo Vivero Gonzalez v Kaichi Uchida [289] | 6-3,2-6,6-3 | |
| Challenger Stockton | 10/04 18:45 | 26 | [106] Jordan Thompson v Kaichi Uchida [289] | 4-6,6-3,6-1 | |
| Challenger Stockton | 10/02 20:00 | 25 | [289] Kaichi Uchida v Tommy Paul [313] | 6-1,6-7,6-0 | |
| Challenger Tiburon | 09/22 18:20 | 45 | [432] Pablo Vivero Gonzalez v Kaichi Uchida [273] | 4-6,6-4,6-4 | |
| Challenger Columbus | 09/20 16:55 | 26 | [111] Jordan Thompson v Kaichi Uchida [273] | 6-1,7-6 | |
| Challenger Columbus | 09/18 19:35 | 25 | [241] Roberto Cid Subervi v Kaichi Uchida [273] | 6-7,6-7 | |
| Challenger Cary | 09/15 16:00 | 28 | [143] Reilly Opelka v Kaichi Uchida [288] | 6-3,6-4 | |
| Challenger Cary | 09/13 16:00 | 27 | [288] Kaichi Uchida v Jose Hernandez-Fernandez [283] | 6-4,6-3 | |
| Challenger Cary | 09/12 20:15 | 26 | [264] Evan King v Kaichi Uchida [288] | 4-6,3-6 |
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.