2‑Dec‑2019 | M15 Nonthaburi | Hard | QF | 761 | 458 | (2)Makoto Ochi [JPN] d. Crnokrak | 7-6(8) 6-3 | | | | | | | | | |
2‑Dec‑2019 | M15 Nonthaburi | Hard | R16 | 761 | | Crnokrak d. Taiyo Yamanaka [JPN] | 6-2 6-3 | | | | | | | | | |
2‑Dec‑2019 | M15 Nonthaburi | Hard | R32 | 761 | 555 | Crnokrak d. (7)Adam El Mihdawy [USA] | 7-5 6-2 | | | | | | | | | |
25‑Nov‑2019 | M15 Nonthaburi | Hard | R32 | 759 | 459 | Makoto Ochi [JPN] d. Crnokrak | 6-4 6-4 | | | | | | | | | |
28‑Oct‑2019 | Playford CH | Hard | R32 | 800 | 130 | (2)James Duckworth [AUS] d. Crnokrak | 6-3 7-5 | | 0.30 | 13.7% | 4.1% | 63.0% | 71.7% | 40.7% | 6/8 | 1:16 |
28‑Oct‑2019 | Playford CH | Hard | R64 | 800 | 568 | Crnokrak d. Luca Castelnuovo [SUI] | 6-3 6-4 | | 1.58 | 5.2% | 3.4% | 63.8% | 81.1% | 57.1% | 0/0 | 1:20 |
21‑Oct‑2019 | Traralgon CH | Hard | R64 | 797 | 361 | Luke Saville [AUS] d. Crnokrak | 6-2 6-4 | | 0.63 | 4.9% | 6.6% | 67.2% | 58.5% | 45.0% | 2/6 | 1:11 |
7‑Oct‑2019 | M25 Toowoomba | Hard | R32 | 784 | 1119 | (WC)Will Maher [AUS] d. Crnokrak | 6-3 6-4 | | | | | | | | | |
30‑Sep‑2019 | M25 Brisbane | Hard | R32 | 791 | 424 | Jacob Grills [AUS] d. Crnokrak | 0-6 6-3 6-1 | | | | | | | | | |
23‑Sep‑2019 | M25 Darwin | Hard | R16 | 801 | 471 | Vladyslav Orlov [UKR] d. Crnokrak | 3-6 6-2 6-2 | | | | | | | | | |
23‑Sep‑2019 | M25 Darwin | Hard | R32 | 801 | 672 | Crnokrak d. Wishaya Trongcharoenchaikul [THA] | 7-6(3) 6-4 | | | | | | | | | |
16‑Sep‑2019 | M25 Cairns | Hard | R16 | 801 | 346 | (2)Brydan Klein [AUS] d. Crnokrak | 6-4 5-7 6-3 | | | | | | | | | |
16‑Sep‑2019 | M25 Cairns | Hard | R32 | 801 | 921 | Crnokrak d. Rhett Purcell [GBR] | 6-1 6-2 | | | | | | | | | |
19‑Aug‑2019 | M15 Jakarta | Hard | QF | 837 | 765 | Dusty H Boyer [USA] d. Crnokrak | 6-3 6-7(5) 6-4 | | | | | | | | | |
19‑Aug‑2019 | M15 Jakarta | Hard | R16 | 837 | | Crnokrak d. (Q)Yu Hsiang Chiu [TPE] | 6-1 6-2 | | | | | | | | | |
19‑Aug‑2019 | M15 Jakarta | Hard | R32 | 837 | 863 | Crnokrak d. Karunuday Singh [IND] | 6-2 6-2 | | | | | | | | | |
5‑Aug‑2019 | M15 Jakarta | Hard | R32 | 838 | 756 | (5)Ruan Roelofse [RSA] d. Crnokrak | 6-4 6-4 | | | | | | | | | |
29‑Jul‑2019 | M25 Nonthaburi | Hard | R32 | | 397 | Renta Tokuda [JPN] d. Crnokrak | 6-4 6-2 | | | | | | | | | |
22‑Jul‑2019 | M25 Nonthaburi | Hard | QF | | 401 | Harry Bourchier [AUS] d. Crnokrak | 6-4 7-6(4) | | | | | | | | | |
22‑Jul‑2019 | M25 Nonthaburi | Hard | R16 | | | Crnokrak d. Soichiro Moritani [JPN] | 6-3 6-2 | | | | | | | | | |
22‑Jul‑2019 | M25 Nonthaburi | Hard | R32 | | 452 | Crnokrak d. (6)Sidharth Rawat [IND] | 6-3 6-2 | | | | | | | | | |
10‑Jun‑2019 | M25 Hong Kong | Hard | R16 | | 492 | (6)Sidharth Rawat [IND] d. Crnokrak | 6-4 6-4 | | | | | | | | | |
10‑Jun‑2019 | M25 Hong Kong | Hard | R32 | | | Crnokrak d. (WC)Wai Yu Kai [HKG] | 6-3 6-1 | | | | | | | | | |
3‑Jun‑2019 | M25 Hong Kong | Hard | R32 | | 372 | Yan Bai [CHN] d. (Q)Crnokrak | 6-1 6-2 | | | | | | | | | |
27‑May‑2019 | M25 Nonthaburi | Hard | SF | | 566 | Rio Noguchi [JPN] d. Crnokrak | 6-4 7-5 | | | | | | | | | |
27‑May‑2019 | M25 Nonthaburi | Hard | QF | | | Crnokrak d. Congsup Congcar [THA] | 6-0 6-2 | | | | | | | | | |
27‑May‑2019 | M25 Nonthaburi | Hard | R16 | | | Crnokrak d. (IR )Boris Butulija [SRB] | 6-0 6-2 | | | | | | | | | |
27‑May‑2019 | M25 Nonthaburi | Hard | R32 | | | Crnokrak d. (Q)Isaac Becroft [NZL] | 6-1 6-2 | | | | | | | | | |
20‑May‑2019 | M25 Nonthaburi | Hard | R32 | | | Hiroyasu Ehara [JPN] d. (Q)Crnokrak | 7-5 6-2 | | | | | | | | | |
13‑May‑2019 | M25 Luan | Hard | R16 | | 661 | (6)Jie Cui [CHN] d. (Q)Crnokrak | 6-3 2-6 6-3 | | | | | | | | | |
13‑May‑2019 | M25 Luan | Hard | R32 | | | (Q)Crnokrak d. Weiqiang Zheng [CHN] | 4-6 6-3 7-5 | | | | | | | | | |
29‑Apr‑2019 | M15 Wuhan | Hard | R16 | | 411 | Shuichi Sekiguchi [JPN] d. Crnokrak | 7-5 6-2 | | | | | | | | | |
29‑Apr‑2019 | M15 Wuhan | Hard | R32 | | | Crnokrak d. (WC)Sheng Hao Zhou [CHN] | 6-4 6-4 | | | | | | | | | |
25‑Mar‑2019 | M15 Mornington | Clay | R32 | | 413 | (2)Harry Bourchier [AUS] d. Crnokrak | 6-4 7-5 | | | | | | | | | |
25‑Feb‑2019 | M25 Albury | Grass | QF | | 627 | Matthew Christopher Romios [AUS] d. Crnokrak | 6-4 1-0 RET | | | | | | | | | |
25‑Feb‑2019 | M25 Albury | Grass | R16 | | | Crnokrak d. (Q)Issei Okamura [JPN] | 6-3 6-2 | | | | | | | | | |
25‑Feb‑2019 | M25 Albury | Grass | R32 | | 627 | Crnokrak d. James Frawley [AUS] | 6-3 6-1 | | | | | | | | | |
4‑Feb‑2019 | M15 Antalya | Clay | R32 | | 640 | Bruno Santanna [BRA] d. (WC)Crnokrak | 6-2 4-6 6-2 | | | | | | | | | |
14‑Jan‑2019 | Australian Open | Hard | Q1 | | 213 | Calvin Hemery [FRA] d. (WC)Crnokrak | 7-6(4) 7-6(1) | | 0.80 | 7.9% | 6.9% | 57.4% | 72.4% | 51.2% | 0/0 | 1:43 |