| Basel, Switzerland | 10/23 19:20 | 25 | [366] Chiudinelli, Marco v Haase, Robin [44] | 2-6,6-7 | |
| Challenger Kaohsiung | 10/03 04:45 | 25 | [343] Chiudinelli, Marco v Lukas Rosol [198] | 0-6,6-7 | |
| ATP Chengdu Qual | 09/24 05:00 | 46 | [93] Taylor Fritz v Chiudinelli, Marco [309] | 6-4,6-2 | |
| ATP Chengdu Qual | 09/23 07:10 | 45 | [22] Marach, Oliver v Chiudinelli, Marco [309] | Retired | |
| ATP Chengdu Qual | 09/23 06:20 | 45 | Kobelt, Peter v Chiudinelli, Marco | Cancelled | |
| Coupe Davis | 09/17 13:55 | 26 | Chiudinelli, Marco v Shyla, Yaraslau | 6-4,6-3,6-4 | |
| Coupe Davis | 09/15 13:00 | 26 | [262] Chiudinelli, Marco v Zhyrmont, Dzmitry [333] | 6-3,4-6,6-4,6-3 | |
| US Open, New York, USA, Qualifying | 08/24 16:40 | 45 | [210] Chiudinelli, Marco v Soeda, Go [131] | 3-6,1-6 | |
| US Open, New York, USA, Qualifying | 08/22 23:10 | 44 | [210] Chiudinelli, Marco v Blake Mott [234] | 6-3,6-2 | |
| Segovia, Spain | 08/02 13:30 | 26 | [384] Granollers, Gerard v Chiudinelli, Marco [214] | 6-4,2-6,7-5 | |
| Segovia, Spain | 07/31 13:20 | 25 | [214] Chiudinelli, Marco v Zapata Miralles, Bernabe [289] | 7-6,6-1 | |
| Gstaad, Switzerland | 07/26 10:15 | 25 | [36] Lorenzi, Paolo v Chiudinelli, Marco [214] | 7-6,6-3 | |
| Newport, USA | 07/17 15:00 | 25 | [203] Novikov, Dennis v Chiudinelli, Marco [211] | 6-1,6-3 | |
| Winnetka, USA | 07/10 18:10 | 25 | [354] Dominik Koepfer v Chiudinelli, Marco [183] | 3-6,6-3,6-0 | |
| Wimbledon Qual | 06/26 13:25 | 44 | [183] Chiudinelli, Marco v Taylor Fritz [128] | 3-6,7-5,1-6 | |
| ATP Stuttgart Qual | 06/11 12:30 | 46 | [183] Chiudinelli, Marco v Marton Fucsovics [148] | 5-7,5-7 | |
| ATP Stuttgart Qual | 06/10 14:35 | 45 | [133] Taylor Fritz v Chiudinelli, Marco [183] | 5-7,6-4,3-6 | |
| French Open Qual | 05/23 09:20 | 44 | [188] Chiudinelli, Marco v Vanni, Luca [120] | 2-6,2-6 | |
| ATP Geneva Qual | 05/21 10:25 | 46 | Chiudinelli, Marco v Marcora, Roberto | 4-6,1-6 | |
| ATP Geneva Qual | 05/20 12:55 | 45 | [184] Chiudinelli, Marco v Falla, Alejandro [290] | 7-5,7-6 | |
| Challenger - Busan | 05/16 01:30 | 25 | [184] Chiudinelli, Marco v Vasek Pospisil [106] | 2-6,5-7 | |
| Challenger Seoul | 05/11 03:30 | 26 | [188] Chiudinelli, Marco v Fabbiano, Thomas [133] | 1-6,2-6 | |
| Challenger Seoul | 05/09 04:10 | 25 | [252] Omar Jasika v Chiudinelli, Marco [188] | 4-6,7-6,6-7 | |
| Challenger Gimcheon | 05/05 02:00 | 27 | [188] Chiudinelli, Marco v Kavcic, Blaz [123] | 3-6,4-6 | |
| Challenger Gimcheon | 05/03 02:00 | 26 | [56] Lu, Yen-Hsun v Chiudinelli, Marco [188] | 3-6,1-6 | |
| Challenger Gimcheon | 05/01 04:25 | 25 | [188] Chiudinelli, Marco v Kim, Cheong-Eui [470] | 3-6,6-2,6-3 | |
| Anning, China | 04/25 09:55 | 25 | [183] Chiudinelli, Marco v Juan Pablo Paz [364] | 2-6,1-6 | |
| Taipei, Chinese Taipei | 04/21 08:00 | 27 | [118] Vasek Pospisil v Chiudinelli, Marco [202] | 6-3,6-4 | |
| Taipei, Chinese Taipei | 04/19 09:25 | 26 | [202] Chiudinelli, Marco v Sela, Dudi [101] | 6-4,6-3 | |
| Taipei, Chinese Taipei | 04/18 04:35 | 25 | [202] Chiudinelli, Marco v Luke Saville [320] | 6-4,6-4 |