| Challenger Shenzhen | 04/22 02:00 | 25 | Mark Lajal v Adam Walton | Cancelled | |
| Challenger Acapulco | 04/21 00:30 | 29 | [129] Adam Walton v Giovanni Mpetshi Perricard [162] | 3-6,3-6 | |
| Challenger Acapulco | 04/19 23:30 | 28 | [170] Alexis Galarneau v Adam Walton [129] | 4-6,6-7 | |
| Challenger Acapulco | 04/18 22:00 | 27 | [129] Adam Walton v Tristan Schoolkate [252] | 6-2,6-4 | |
| Challenger Acapulco | 04/17 22:00 | 26 | [129] Adam Walton v Aidan Mchugh [363] | 6-1,6-0 | |
| Challenger Acapulco | 04/16 22:00 | 25 | [129] Adam Walton v Charles Broom [339] | 6-2,6-3 | |
| Challenger Morelos | 04/14 00:55 | 28 | [135] Adam Walton v Giovanni Mpetshi Perricard [160] | 6-7,7-5,5-7 | |
| Challenger Morelos | 04/12 22:20 | 27 | [192] Beibit Zhukayev v Adam Walton [135] | 6-7,7-6,4-6 | |
| Challenger Morelos | 04/11 18:00 | 26 | [327] Antoine Bellier v Adam Walton [135] | 6-7,4-6 | |
| Challenger Morelos | 04/09 22:15 | 25 | Alafia Ayeni v Adam Walton | 3-6,1-6 | |
| Challenger Mexico City | 04/02 17:00 | 25 | [212] Alexis Galarneau v Adam Walton [138] | 6-3,7-6 | |
| ATP Miami | 03/21 16:00 | 23 | [36] Felix Auger Aliassime v Adam Walton [150] | 7-5,6-4 | |
| ATP Miami | 03/19 15:00 | 15 | [88] Pedro Martinez v Adam Walton [150] | 6-3,2-6,3-6 | |
| ATP Miami | 03/18 17:10 | 14 | [150] Adam Walton v Thiago Monteiro [110] | 6-7,7-6,6-4 | |
| Challenger Phoenix | 03/13 17:00 | 25 | [77] Arthur Cazaux v Adam Walton [150] | 7-6,6-4 | |
| Challenger Phoenix | 03/12 17:00 | 19 | [128] Liam Broady v Adam Walton [150] | 7-6,2-6,3-6 | |
| Challenger Phoenix | 03/11 17:00 | 14 | [150] Adam Walton v Mikhail Kukushkin [140] | Retired | |
| ATP Indian Wells | 03/04 18:00 | 14 | [65] Thiago Seyboth Wild v Adam Walton [150] | 6-1,6-3 | |
| Challenger New Delhi | 02/29 07:30 | 26 | [277] Geoffrey Blancaneaux v Adam Walton [145] | 6-3,6-0 | |
| Challenger New Delhi | 02/27 14:15 | 25 | [267] Gauthier Onclin v Adam Walton [145] | 4-6,0-6 | |
| Challenger Pune | 02/25 11:00 | 29 | [173] Valentin Vacherot v Adam Walton [153] | 3-6,7-6,7-6 | |
| Challenger Pune | 02/24 09:00 | 28 | [153] Adam Walton v Duje Ajdukovic [125] | 7-5,7-6 | |
| Challenger Pune | 02/23 06:30 | 27 | Mukund Sasikumar v Adam Walton | Walkover | |
| Challenger Pune | 02/21 08:15 | 26 | [235] Tung-Lin Wu v Adam Walton [153] | 0-6,7-6,6-7 | |
| Challenger Pune | 02/20 06:50 | 25 | [448] Raphael Collignon v Adam Walton [153] | 6-7,2-6 | |
| Challenger Bengaluru | 02/16 14:55 | 27 | [153] Adam Walton v Sumit Nagal [98] | 5-7,2-6 | |
| Challenger Bengaluru | 02/15 06:30 | 26 | [153] Adam Walton v Gauthier Onclin [252] | 6-2,6-2 | |
| Challenger Bengaluru | 02/14 05:30 | 25 | [153] Adam Walton v S D Prajwal Dev [334] | 6-3,6-0 | |
| Challenger Burnie | 02/11 02:00 | 29 | [180] Adam Walton v Dane Sweeny [224] | 6-2,7-6 | |
| Challenger Burnie | 02/10 01:00 | 28 | [180] Adam Walton v Tristan Schoolkate [264] | 6-4,6-4 |