| Challenger Oeiras | 04/16 10:50 | 14 | [481] Oscar Jose Gutierrez v Akira Santillan [413] | 3-6,3-6 | |
| Challenger Madryt | 04/11 15:30 | 25 | [65] Pedro Cachin v Akira Santillan [413] | 6-4,6-7,6-2 | |
| Challenger Madryt | 04/10 12:05 | 19 | Javier Marti v Akira Santillan | 7-5,7-5 | |
| Challenger Madryt | 04/09 14:40 | 14 | [404] Akira Santillan v Mikhail Kukushkin [319] | 6-2,6-3 | |
| Challenger Murcia | 04/03 09:00 | 19 | [310] Alejandro Moro Canas v Akira Santillan [404] | 6-4,4-6,6-2 | |
| Challenger Murcia | 04/02 11:25 | 14 | [448] Akira Santillan v Billy Harris [373] | 6-3,6-4 | |
| ITF - Trnava M25 | 03/29 08:00 | 25 | Akira Santillan v Dominik Recek | 4-6,7-6,6-7 | |
| ITF - Portimao M25 | 03/19 11:00 | 29 | [425] Akira Santillan v Goncalo Oliveira [489] | 6-7,4-6 | |
| ITF - Portimao M25 | 03/18 11:00 | 28 | [425] Akira Santillan v Aidan Mchugh [431] | 6-2,6-7,7-6 | |
| ITF - Portimao M25 | 03/17 10:30 | 27 | [263] Lukas Rosol v Akira Santillan [425] | 7-6,2-6,2-6 | |
| ITF - Portimao M25 | 03/16 10:30 | 26 | Tomas C Abasolo v Akira Santillan | 5-7,6-3,2-6 | |
| ITF - Portimao M25 | 03/15 14:50 | 25 | Henrique Rocha v Akira Santillan | 5-7,1-6 | |
| ITF - Quinta Do Lago M25 | 03/09 17:40 | 25 | [425] Akira Santillan v Naoki Nakagawa [455] | 4-6,2-6 | |
| Challenger Pune | 02/28 11:00 | 25 | [441] Akira Santillan v Chun Hsin Tseng [124] | 6-4,5-7,4-6 | |
| Challenger Pune | 02/27 05:30 | 19 | [443] Akira Santillan v Colin Sinclair [426] | 6-7,7-5,6-2 | |
| Challenger Pune | 02/26 07:10 | 14 | [338] Jason Jung v Akira Santillan [443] | Retired | |
| Challenger Bengaluru | 02/19 11:15 | 14 | [406] Akira Santillan v Alibek Kachmazov [347] | 4-6,7-5,5-7 | |
| Challenger Chennai | 02/12 04:30 | 14 | Digvijay Pratap Singh v Akira Santillan | 2-6,6-4,6-1 | |
| Challenger Nonthaburi | 01/15 06:50 | 14 | [341] Henri Squire v Akira Santillan [400] | 6-2,7-6 | |
| Challenger Nonthaburi | 01/08 03:00 | 14 | [393] Giovanni Fonio v Akira Santillan [389] | 5-7,6-3,6-3 | |
| Challenger Nonthaburi | 01/02 03:00 | 19 | [357] Henri Squire v Akira Santillan [389] | 6-4,6-4 | |
| Challenger Nonthaburi | 01/01 04:25 | 14 | [444] Mats Rosenkranz v Akira Santillan [389] | 2-6,2-6 | |
| Challenger Ismaning | 10/09 14:55 | 14 | [431] Matthias Bachinger v Akira Santillan [382] | 6-2,5-7,7-5 | |
| Challenger Alicante | 10/03 09:00 | 19 | [352] Stuart Parker v Akira Santillan [382] | Retired | |
| Challenger Alicante | 10/02 08:00 | 14 | Darwin Blanch v Akira Santillan | 2-6,0-6 | |
| Challenger Lisbon | 09/25 12:20 | 14 | [376] Akira Santillan v Luca Van Assche [289] | 6-7,1-6 | |
| Challenger Braga | 09/18 11:15 | 14 | Jeremy Jahn v Akira Santillan | 6-3,7-6 | |
| Challenger Stambuł | 09/12 09:00 | 19 | Akira Santillan v Sarp Agabigun | 6-2,5-7,6-7 | |
| Challenger Stambuł | 09/11 09:15 | 14 | Akira Santillan v Jaycer Lyeons | 6-2,4-6,6-2 | |
| Challenger Nonthaburi | 09/08 03:30 | 26 | [437] Makoto Ochi v Akira Santillan [380] | Retired |
Wikipedia - Akira Santillan
Akira Santillan (アキラ サンティラン, Santiran Akira, born 22 May 1997) is an Australian tennis player. He represents Australia in competitions, though he played for Japan from 2015 to 2017.