Stadium: Arena Annexe Round: 27 Ground: Hardcourt indoor
| Challenger Brest MD | 2018/10/23 17:20 | Vavassori A / Vega Hernandez D v Brkic T / Pavic A | 2-6,3-6 |
| Challenger Ismaning MD | 2018/10/17 15:35 | Raja P / Sancic A v Brkic T / Pavic A | 7-5,6-2 |
| Challenger Ismaning MD | 2018/10/17 15:31 | Raja P / Sancic A v Brkic T / Pavic A | 7-5,6-2 |
| Challenger Ismaning MD | 2018/10/15 18:15 | Brkic T / Pavic A v Sabanov/Sabanov | 7-6,7-5 |
| Challenger Ortisei MD | 2018/10/08 12:05 | Brkic T / Pavic A v Brown D / Novak D | 6-4,4-6,6-10 |
| Challenger Seville MD | 2018/09/04 18:35 | Brkic T / Pavic A v Gimeno Traver D / Ojeda Lara R | 6-4,4-6,8-10 |
| Challenger Como MD | 2018/09/01 17:15 | Klizan M / Polasek F v Brkic T / Pavic A | 7-6,6-3 |
| Challenger Como MD | 2018/08/30 14:00 | Blancaneaux G / Robert S v Brkic T / Pavic A | 5-7,2-6 |
| Challenger Brest MD | 2018/10/24 19:50 | Travaglia S / Vanni L v Krajicek A / Nedunchezhiyan J | 3-6,2-6 |
| Chengdu, China, Doubles | 2018/09/30 06:00 | Dodig/Pavic v Krajicek A / Nedunchezhiyan J | 6-2,6-4 |
| Chengdu, China, Doubles | 2018/09/28 10:55 | Krajicek A / Nedunchezhiyan J v Pella G / Sousa J | 7-5,6-1 |
| Chengdu, China, Doubles | 2018/09/27 10:30 | Bemelmans R /Gunneswaran P v Krajicek A / Nedunchezhiyan J | 3-6,5-7 |
| Chengdu, China, Doubles | 2018/09/25 05:00 | Krajicek A / Nedunchezhiyan J v Sharan D / Sitak A | 3-6,7-6,10-7 |
| Challenger Kaohsiung MD | 2018/09/22 05:00 | Krajicek A / Nedunchezhiyan J v Hsu/Wang | 6-7,1-6 |
| Challenger Kaohsiung MD | 2018/09/20 11:35 | Krajicek A / Nedunchezhiyan J v Mousley/Peng | 6-3,6-4 |
| Challenger Kaohsiung MD | 2018/09/19 11:50 | Krajicek A / Nedunchezhiyan J v Lamasine T / Moriya H | 6-4,7-6 |