| Challenger Leon | 04/26 00:20 | 26 | [98] Alexander Bublik v Petrovic, Danilo [295] | 7-6,7-5 | |
| Challenger Leon | 04/24 19:30 | 25 | [295] Petrovic, Danilo v Smith, John-Patrick [228] | 6-3,6-4 | |
| Challenger Leon | 04/23 23:00 | 24 | [295] Petrovic, Danilo v Camilo Ugo Carabelli [451] | 6-2,6-2 | |
| Challenger Leon | 04/23 23:00 | 24 | Petrovic, Danilo v Tipsarevic, Janko | Cancelled | |
| Challenger - San Luis Potosí | 04/17 19:00 | 25 | [351] Marc-Andrea Huesler v Petrovic, Danilo [284] | 6-3,6-4 | |
| Challenger Murcia | 04/08 14:30 | 24 | [286] Petrovic, Danilo v Robredo, Tommy [222] | 2-6,6-2,4-6 | |
| Challenger Zhuhai | 03/07 10:25 | 26 | [282] Kaichi Uchida v Petrovic, Danilo [291] | 7-6,3-6,6-4 | |
| Challenger Zhuhai | 03/06 12:15 | 25 | [291] Petrovic, Danilo v Nedovyesov, Aleksandr [193] | 3-6,6-4,6-2 | |
| Challenger Zhuhai | 03/05 02:30 | 24 | [334] Luke Saville v Petrovic, Danilo [291] | 2-6,1-6 | |
| Bergamo, Italy | 02/20 12:10 | 25 | [209] de Greef, Arthur v Petrovic, Danilo [293] | 6-3,6-4 | |
| Bergamo, Italy | 02/18 17:40 | 24 | Peter Heller v Petrovic, Danilo | 6-3,5-7,3-6 | |
| Challenger Budapest | 02/06 13:20 | 25 | [284] Petrovic, Danilo v Oscar Otte [165] | 6-7,6-3,6-7 | |
| Challenger Budapest | 02/05 16:35 | 24 | Szintai, David v Petrovic, Danilo | 3-6,4-6 | |
| Challenger - Cleveland | 01/30 01:25 | 25 | [172] Darian King v Petrovic, Danilo [286] | 6-3,6-4 | |
| Challenger - Cleveland | 01/28 18:40 | 24 | [286] Petrovic, Danilo v Pavic, Ante [299] | 7-6,4-6,7-6 | |
| Newport Beach, USA | 01/22 21:30 | 25 | [282] Petrovic, Danilo v Miomir Kecmanovic [125] | 4-6,3-6 | |
| Newport Beach, USA | 01/21 19:35 | 24 | [282] Petrovic, Danilo v Daniel Elahi Galan [221] | 4-6,6-4,6-2 | |
| Challenger - Pune | 11/20 05:30 | 25 | Petrovic, Danilo v Patael, Ben | 7-5,4-6,4-6 | |
| Challenger Bangalore | 11/13 11:20 | 25 | [292] Frederico Ferreira Silva v Petrovic, Danilo [296] | 6-3,3-6,6-4 | |
| Challenger Tashkent | 10/09 06:20 | 25 | [266] Petrovic, Danilo v Auger-Aliassime, Felix [128] | 4-6,5-7 | |
| Challenger Tashkent | 10/09 05:00 | 25 | Petrovic, Danilo v Griekspoor, Scott | Cancelled | |
| Challenger Almaty 2 | 10/02 04:00 | 25 | [263] Petrovic, Danilo v Mirza Basic [77] | 3-6,3-6 | |
| US Open, New York, USA | 08/23 15:00 | 45 | [232] Petrovic, Danilo v Lorenzo Giustino [255] | 2-6,6-4,3-6 | |
| US Open, New York, USA | 08/21 16:45 | 44 | [113] Menendez-Maceiras, Adrian v Petrovic, Danilo [232] | 3-6,3-6 | |
| Jinan, China | 08/06 07:30 | 25 | Petrovic, Danilo v Denis Yevseyev | 4-6,2-6 | |
| Chengdu, China | 07/31 04:40 | 25 | [171] Tatsuma Ito v Petrovic, Danilo [227] | 7-6,7-6 | |
| ATP Hamburg Qual | 07/22 09:00 | 164 | [117] Corentin Moutet v Petrovic, Danilo [220] | 6-4,6-4 | |
| ATP Hamburg Qual | 07/21 10:00 | 64 | [220] Petrovic, Danilo v Calvin Hemery [150] | 5-7,7-6,7-5 | |
| Umag, Croatie, Qualifications | 07/15 08:00 | 64 | [115] Martin Klizan v Petrovic, Danilo [222] | 2-6,7-6,6-4 | |
| Challenger Recanati | 07/02 16:55 | 25 | [222] Petrovic, Danilo v Quiroz, Roberto [235] | 2-6,6-3,2-6 |